This specification prescribes the standard nominal diameters and cross-sectional areas of American Wire Gage (AWG) sizes of solid round wires, used as electrical conductors, and gives equations and rules for the calculation of standard nominal mass and lengths, resistances, and breaking or rated strengths of such wires. All wire dimensions and properties shall be considered as occurring at the internationally standardized reference temperature and all calculations shall be rounded in the final value only.1.1 This specification prescribes standard nominal diameters and cross-sectional areas of American Wire Gage (AWG) sizes of solid round wires, used as electrical conductors, and gives equations and rules for the calculation of standard nominal mass and lengths, resistances, and breaking strengths of such wires (Explanatory Note 1).1.2 The values stated in inch-pound or SI units are to be regarded separately as standard. Each system shall be used independently of the other. Combining values of the two systems may result in nonconformance with the specification. For conductor sizes designated by AWG or kcmil sizes, the requirements in SI units have been numerically converted from the corresponding values stated or derived, in inch-pound units. For conductor sizes designated by SI units only, the requirements are stated or derived in SI units.1.2.1 For density, resistivity and temperature, the values stated in SI units are to be regarded as standard.1.3 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

定价： 590元 / 折扣价： 502 元 加购物车

4.1 This practice is not meant to include products other than exit devices except to the extent that such products directly relate to the use of exit devices. When other products are described, the security attributes of the other products are described generally in the documents referenced in Section 2.1.1 This practice provides information for the installation of exit devices used in areas of security to achieve the greatest security possible without violating the requirements and spirit of NFPA 101.1.2 Security of a high level is not always possible with these products but the use of certain types and functions of exit devices will afford a much higher degree of security than the use of other types and functions.1.3 The values as stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.

定价： 515元 / 折扣价： 438 元 加购物车

This practice addresses boundary data pertaining to areas that have been petitioned to be designated as unsuitable for mining relative to Title V Section 522 of the SMCRA as well as those lands that have been found by the RA’s process to be designated unsuitable for all or certain types of mining. These areas may be petitioned to be unsuitable for CMOs because of a number of reasons including but not limited to being fragile, historic, cultural, and scientific, having esthetic values, and having natural systems such as aquifers that a CMO could result in significant damage. This practice is significant as it provides for uniformity of geospatial data pertaining to the geographic location and description of both land petitioned and those areas ultimately ruled upon and designated with restrictions to CMOs.The lands unsuitable for mining petition geospatial data shall be obtained from RAs for CMOs. The coal mining community encompasses all entities directly and indirectly affected by CMOs including industry, and other interested parties, the public and the government at all levels within the United States.Within its area of exclusive jurisdiction, each RA is the ADS for coal mining spatial data that it creates and uses to regulate mining activity.This geospatial data standard will help ensure uniformity of data contributed by each RA and assist organizations in efforts to create, utilize, and share geospatial data relative to SMCRA, and it will lead to better communication between state, tribal, and federal regulatory offices, the public, and industry.Use of this standard over time will allow identification of changes in the boundaries of petition and designated areas.This standard conforms to the definition of a Data Content Standard as promulgated by the U.S. Federal Geographic Data Committee (FGDC). Terminology and definitions for identifying geographical features and describing the data model have been adopted from the FGDC Spatial Data Transfer Standard (See ANSI INCITS 320-1998 (R2003) and Project 1574-D).1.1 This practice describes minimum geospatial data required to locate and describe lands unsuitable for mining petitions (LUMP) and designated areas as a result of the petition.1.1.1 This practice addresses petition areas and any resulting designated areas geospatial boundary data as detailed in the Surface Mining Control and Reclamation Act of 1977 (SMCRA). This geospatial data shall be obtained from each state, tribal, or federal coal mining Regulatory Authority (RA), or combinations thereof, authorized under SMCRA to regulate coal mining operations (CMOs). Each RA shall be the authoritative data source (ADS) for this coal mining geospatial data.1.1.2 As used in this practice, a LUMP area was petitioned to be designated as unsuitable for CMOs. The RA is responsible for keeping a record of these areas as set forth in Title V Section 522 of the SMCRA and within the OSM regulations (30 CFR Part 761).1.1.3 This practice is one of several that have been approved or are in development related to SMCRA approved coal mining operations. Also under development is a terminology standard. Initial development of these standards is being done on an individual basis; however, they may be consolidated to reduce repetition of information between them.1.2 This practice applies to pre-SMCRA and post-SMCRA petition areas considered by the RA.1.3 This practice offers a set of instructions for performing one or more specific operations. This document cannot replace education or experience and should be used in conjunction with professional judgment. Not all aspects of this practice may be applicable in all circumstances. This ASTM standard is not intended to represent or replace the standard of care by which the adequacy of a given professional service must be judged, nor should this document be applied without consideration of a project’s many unique aspects. The word “Standard” in the title of this document means only that the document has been approved through the ASTM consensus process.1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

定价： 0元 / 折扣价： 0 元

4.1 Warning tracks are playing surfaces located on the margins of the playing area for the purpose of providing a warning to the player that he or she is approaching a hazard (commonly a fence) or out-of-bounds area. In order to provide for an effective warning track surface, the warning track must be constructed and maintained in such a manner so that the player can sense the change in texture from the regular playing surface and the warning track without having to look. This feature is very important in that the player is often visually focused on the ball during play and would not be looking at the ground as he/she is running toward the warning track. The warning track must also be constructed and maintained in such a manner that the warning track itself, or the surface transition, does not pose a hazard to the players.4.2 The warning track areas of sports fields should provide a uniform surface with good footing. The change in surface texture of the warning track from the surrounding playing surface must be of enough contrast such that the player can sense the change without looking. Most often, warning track surfaces are devoid of turf or other vegetation. However, turfed warning track areas may be used in instances where such purpose is to “warn” the player of an impending hazard where the primary playing surface is a skinned area. This may be the case in softball where the entire infield playing surface is a skinned area and a turfed warning track is used along the first base and third base fencelines. Undulations, rough surface, hard or soft surface, weeds, stones, debris, wets spots, etc. detract from a good, safe warning track. The safety and effectiveness of the warning track is largely affected by construction and maintenance procedures and this guide addresses those procedures.4.2.1 During construction, consideration should be given to factors such as the physical and chemical properties of materials used in the area, freedom from stones, sticks, and other debris, and surface drainage and internal drainage. Consideration should also be given to the surface elevation such that a drastic change is not produced by the transition from the playing surface to the warning track area which may create a tripping or falling hazard.4.2.2 Maintenance practices that influence the playability of the surface include edging, dragging, rolling, watering, vegetation control, and removal of stones and debris that may adversely affect play and safety.4.3 Those responsible for the design, construction, or maintenance, or a combination thereof, of baseball and softball fields, or play areas where the need for a warning track area has been identified, will benefit from this guide.1.1 This guide covers techniques that are appropriate for the construction and maintenance of warning track areas on sports fields. This guide provides guidance for the selection of materials, such as soil and sand for use in constructing or reconditioning warning track areas and for selection of management practices that will maintain a safe and functioning warning track. Although this guide has applications to all sports where a warning track surface may be required or desired, it has specific applications to baseball/softball.1.2 This guide does not address synthetic warning tracks such as rubberized surfaces, artificial turf, or paved surfaces.1.3 Decisions in selecting construction and maintenance techniques are influenced by local soil types, climatic factors, level of play, budget, and training/ability of management personnel.1.4 The values stated in SI units are to be regarded as the standard. The values in parentheses are for information only.1.5 This standard may involve hazardous materials, operations, and equipment. This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

定价： 515元 / 折扣价： 438 元 加购物车

4.1 This practice identifies methods for cleaning and maintaining controlled areas and clean rooms as defined by ISO 14644-1 and ISO 14644-2. Cleaning procedures are described, and cleaning frequency for different classes of facility are given. Compliance with this practice will make it easier and more likely that the required level of facility cleanliness will be maintained. A cleaner facility also will help to protect flight hardware from contamination and should reduce the frequency for cleaning flight hardware. This practice does not discuss operation and operational procedures for cleanrooms and controlled areas. Other documents such as IEST-RP-CC026 and Practice E2352 provide recommended practices for operating cleanrooms and controlled areas.1.1 This practice covers the procedures to be followed for the initial cleaning and normal maintenance of cleanrooms and controlled areas. This practice is applicable to aerospace clean areas where both particles and molecular films (NVR) must be controlled.1.2 Units—The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

定价： 590元 / 折扣价： 502 元 加购物车

4.1 Purpose—This guide provides a process for reclamation of existing CCPs placed in active and inactive storage areas. The guide includes information on the following activities required for the safe and effective reclamation of CCPs from storage areas: (1) Background Review of CCP Storage Areas; (2) Detailed Characterization of CCP Storage Areas; (3) Harvesting Planning and Scoping of CCP Storage Areas; (4) Harvesting Detailed Design and Approval of CCP Storage Areas; and (5) Harvesting Implementation of CCP Storage Areas. More detailed descriptions of these activities are in Sections 6 through 10.4.2 Potential Beneficial Uses of CCPs—There are many CCP storage areas that are potentially harvestable and can provide a functional benefit in a wide variety of beneficial uses. The beneficial use of CCPs contained in these storage areas can have significant environmental and economic benefits for the facility, the facility owner and the local economy, and can significantly reduce disposal operations (1-4).3 Beneficial use of CCPs can provide industry with a safe and responsible way to economically manage the CCPs, while promoting conservation and recycling/reuse, meeting sustainability goals, and addressing the shortage of CCPs in some building product market areas (1, 2, 5). CCPs consist of fly ash, bottom ash, boiler slag, fluidized-bed combustion (FBC) ash, economizer ash, and flue gas desulfurization (FGD) material (see Terminology E2201 for definitions of CCPs) (6, 7).4.2.1 Fly ash is the most abundant CCP in existing storage areas. Its beneficial uses include, but are not limited to: partial replacement for cement in concrete and concrete products – once in concrete, fly ash reacts with Portland cement to create additional reaction products that improve the strength and durability of concrete; raw feed for the production clinker – fly ash can be calcined along with other minerals to produce clinker; blended cements – fly ash can be an important component in the production of blended cement, especially when pozzolanic properties are desired; filler in plastics – fly ash typically increases the stiffness and compressive strength when used as a filler in plastics; controlled low strength materials (CLSM) – CLSM that include fly ash, typically have improved flowability and strength as well as reduced bleeding and shrinkage; as a soil stabilization material; as an aggregate/soil replacement construction material in structural fill and mine reclamation projects; fillers in carpet backing – fly ash is high performance mineral filler; and as a solidification agent within landfills and remediation projects (6-9).4.2.2 Bottom ash can be beneficially used as raw feed for the production of clinker, as a component of structural fills, and as aggregate in the manufacturing of masonry products (6, 7, 9).4.2.3 Boiler slag can be used as blasting grits and roofing granules. Other applications include, but are not limited to, as a component of structural fills and mineral filler in asphalt (7, 9).4.2.4 Fluidized-bed combustion (FBC) ash can be utilized in various mixtures as a low strength concrete material and soil stabilization agent (7).4.2.5 Flue gas desulfurization (FGD) gypsum, in its majority, is typically beneficially used in gypsum panel products. Other uses include in agricultural applications to improve soil, as a component in structural fills, and as an important component in the production of cement (6, 7, 9).4.3 Approval Context—This guide does not supersede local, state or country requirements, if applicable. This guide is intended to be used for storage areas that are both within an approval authority program and historic (or unpermitted) storage areas.4.3.1 For harvesting of CCPs from storage areas within an approval authority program, governing documents should be carefully reviewed and followed to ensure that all requirements relative to design, operations, monitoring, closure, and post-closure are followed, or that agreements are established to ensure compliance and allow for harvesting activities.4.3.2 For harvesting of CCPs from historic (or unpermitted) storage areas, the project team should engage with the appropriate local, state, province, or country approval, or combination thereof, authorities to determine the appropriate requirements, and should ensure that the appropriate engineering controls and institutional controls are incorporated into the harvesting project.4.4 Use of Guide—Approval authorities may incorporate this guide, in whole or in part, into general guidance documents or site-specific approval documents.4.5 Professional Judgment—This guide presumes the active involvement of an environmental professional who is knowledgeable in how to design and construct storage areas and how to identify acceptable site conditions, or when appropriate, satisfy applicable statutory or approval authority limitations on the use of an operating, closed, or historic (unpermitted) storage area.4.6 Inherent Uncertainty—Professional judgment, interpretation, and some uncertainty are inherent in the processes described herein even when decisions are based upon objective scientific principles and accepted industry practices.1.1 This guide provides a framework to address critical aspects related to the harvesting of CCPs placed in active (operational) and inactive (closed or no longer receiving CCPs) storage areas. These storage areas may be used for wet or dry material, and may be located at active or inactive facilities (that is, coal-fired electric utilities or independent power producers that are currently generating electricity or have ceased to do so, respectively). Also, CCPs may be harvested from active or inactive storage areas located on-site or off-site of the facility.1.2 This guide does not include information on how to determine what storage areas or facilities, or both should be selected for potential harvesting of CCPs, as each entity may approach a harvesting program in accordance with their own harvesting pursuits and regulatory requirements. In addition, it does not include information on how an energy company or other interested parties should evaluate inventories to determine the order of their storage areas for potential harvesting, including consideration of risk, performance and cost. This guide is intended to be used to evaluate the potential harvesting of the storage areas once the storage areas are selected for evaluation.1.3 This guide is comprised of the following sections: , Section 1; Referenced Documents, Section 2; Terminology, Section 3; , Section 4; Project Planning and Scoping, Section 5: Background Review of CCP Storage Areas, Section 6; Detailed Characterization of CCP Storage Areas, Section 7; Harvesting Planning and Scoping of CCP Storage Areas, Section 8; Harvesting Detailed Design and Approval (as applicable) of CCP Storage Areas, Section 9; and Harvesting Implementation of CCP Storage Areas, Section 10. Not all information within this guide will be necessary for each harvesting project, and the user should determine the applicability of each section.1.3.1 Section 1, , includes information related to contents of this guide, as well as what is not included in this guide.1.3.2 Section 2, Referenced Documents, includes published documents referenced within this guide.1.3.3 Section 3, Terminology, includes definitions for terms as they relate to this guide.1.3.4 Section 4, , describes the beneficial use of CCPs stored within active and inactive storage areas, including each CCP potential beneficial use; the context of the guide and its use; the professional judgment that is appropriate for use of the guide; and the inherent uncertainty with the processes described within the guide.1.3.5 Section 5, Project Planning and Scoping, describes the steps needed prior to implementing this guide, including: establishing a project team; determining what storage areas within the facility should be evaluated for potential harvesting of CCPs; determining the potential materials to be harvested; compiling existing land use, environmental compliance, geologic/hydrogeologic, topographic, design and construction information; estimating potential project costs and project schedule with contingencies (if feasible); and identifying factors that may impact the ability to harvest the CCPs.1.3.6 Section 6, Site Background Review of CCP Storage Areas, describes the steps for evaluating the attributes of storage areas at the facility relative to harvesting CCPs.1.3.7 Section 7, Detailed Characterization of CCP Storage Areas, describes the steps for developing and implementing the CCP characterization sampling and analysis plan that will evaluate the chemical and physical characteristics of the CCPs within the storage areas, and determining if amendments to the CCPs will be needed for beneficial use.1.3.8 Section 8, Harvesting Planning and Scoping of CCP Storage Areas, describes the steps necessary to evaluate the approval status of the storage areas and develop a conceptual harvesting strategy and approval approach for the project. Considerations are given for both active and inactive storage areas.1.3.9 Section 9, Harvesting Detailed Design and Approval (as applicable) of CCP Storage Areas, describes the steps needed to prepare the detailed design and approval documents (as applicable) for the CCP storage area harvesting and receive the appropriate approval (as applicable).1.3.10 Section 10, Harvesting Implementation of CCP Storage Areas, describes the steps needed to implement the storage area harvesting plans from installation of the appropriate pre-harvesting components and harvesting the CCPs in accordance with the approval requirements, to completing the post-harvesting monitoring and inspections.1.3.11 Sections 6 through 10 provide the five phases (Phase I through V) of the harvesting process that follow once storage areas are selected for harvesting evaluation. Information related to Phase I through V is located on Table 1.1.4 This guide does not include information on the processing of harvested CCPs, and therefore, additional approvals not discussed within this guide may be needed (for example, residual waste processing approvals, air approvals specific to processing, water control approvals, storage system approvals, etc.).1.5 As CCPs are produced, they may be sent off-site directly to beneficial use applications, such as concrete, wallboard and controlled or structural fills, while the alternative is to direct them to dry or wet storage areas. Although many CCPs were placed in storage due to not meeting applicable specifications for use, many other CCPs were stored for lack of market. In either case, the CCPs retain the ability to be considered a wanted material that provides a functional benefit and a benefit to the environment. They can be harvested and lightly processed, if necessary, to meet relevant product specifications and substitute for the raw materials. Depending on the type and homogeneity of CCPs and the type of storage area from which the materials are being harvested (that is, dry or wet storage areas), this harvesting and processing may include, but is not limited to, excavating or dewatering/dredging, drying, milling, classifying and storing or transporting the material before they are beneficially used.1.6 The CCPs that may be harvested include: fly ash, bottom ash and economizer ash generated by powdered carbon boilers; boiler slag; flue gas desulfurization material; fluidized-bed combustion products as defined in Terminology E2201; cenospheres; or other materials suitable for beneficial use.1.7 Laws and approval requirements governing the use of CCPs vary by locality, state and country and generally do not yet include provisions for CCP harvesting as described herein. The user of this guide is responsible for determining and complying with the applicable approval requirements, which may extend beyond harvesting to include approval requirements or guidance on issues such as storage, transportation, end use and other concepts. This guide complements approval programs where guidance on harvesting is unavailable or insufficient, thereby improving the chance that such storage areas may be repurposed for public or private benefit, or both. It is important to engage and educate the approval authority early and often throughout the planning, design and implementation of the harvesting activities. The project team may also consider affording an opportunity to solicit input from other stakeholders.1.8 This guide should not be used as a justification to avoid, minimize or delay implementation of specific management, operation, closure, or remediation activities, or both as appropriate by law or directive, unless the harvesting activities are conducted in conjunction with such strategies to maintain or achieve compliance with the approval requirements or as otherwise agreed upon with the appropriate authorizing agencies.1.9 This guide should not be used to characterize (that is, environmentally assess) a storage area for ownership transfer although portions of such information may supplement other environmental assessments that are used in such a transfer.1.10 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.1.11 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

定价： 646元 / 折扣价： 550 元 加购物车

1.1 This specification applies to air ventilating grille units for detention areas, assembled in part from materials conforming to Specifications A627, A628, and A629. 1.2 The assemblies described herein are intended to provide two types of security, designated Type A and Type B. 1.2.1 Type A -A ventilation unit, utilizing homogeneous TR steel bars for the principal security component. 1.2.2 Type B -A ventilation unit utilizing perforated tool-resisting steel plate for the principal security component. 1.3 It is presumed that equipment manufacturers will fabricate and assemble the materials so as not to impair the performance characteristics specified in the applicable material specifications. 1.4 The descriptions herein of certain assemblies are not intended to infer that other assemblies cannot be used to obtain similar results.

定价： 0元 / 折扣价： 0 元

This practice covers the proper procedures for handling, transporting, and installing sample plates used for the gravimetric determination of nonvolatile residue (NVR) within and between environmentally controlled facilities for spacecraft. This procedure shall appropriately require the following apparatuses and materials: Type 316 corrosion-resistant steel NVR plate; Type 316 corrosion-resistant steel NVR plate cover; noncontaminating nylon (polyamide bag); sealable aluminum NVR plate carrier; solvent compatible and resistant work gloves; oil-free aluminum foil; HEPA filters; and HEPA filtered workstation.1.1 This practice covers the handling, transporting, and installing of sample plates used for the gravimetric determination of nonvolatile residue (NVR) within and between facilities.1.2 The values stated in SI units are to be regarded as the standard.1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

定价： 590元 / 折扣价： 502 元 加购物车

5.1 The NVR determined by this test method is that amount that can reasonably be expected to exist on hardware exposed in environmentally controlled areas.5.2 The evaporation of the solvent at or near room temperature is to quantify the NVR that exists at room temperature.5.3 Numerous other methods are being used to determine NVR. This test method is not intended to replace methods used for other applications.1.1 This test method covers the determination of nonvolatile residue (NVR) fallout in environmentally controlled areas used for the assembly, testing, and processing of spacecraft.1.2 The NVR of interest is that which is deposited on sampling plate surfaces at room temperature: it is left to the user to infer the relationship between the NVR found on the sampling plate surface and that found on any other surfaces.1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

定价： 646元 / 折扣价： 550 元 加购物车

1.1 This test method covers the determination of nonvolatile residue (NVR) fallout in environmentally controlled areas used for the assembly, testing, and processing of spacecraft. 1.2 The NVR of interest is that which is deposited on sampling plate surfaces at room temperature: it is left to the user to infer the relationship between the NVR found on the sampling plate surface and that found on any other surfaces. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. 1.4 The values stated in SI units are to be regarded as the standard.

定价： 0元 / 折扣价： 0 元

5.1 This specification sets forth minimum standard requirements for use in local codes and ordinances relating to public, multi-family, residential, and commercial outdoor play areas or zones and their environments.5.2 This specification does not have the effect of law, nor is it intended to supersede local codes and ordinances of a more restrictive nature.5.3 Playgrounds that intentionally incorporate water into the play area are exempt from this specification.1.1 This specification provides the recommended minimum requirements for denoting various types of fences/barriers for the protection of children's outdoor play spaces in public, commercial, and multi-family residential use locations. This specification excludes individual single family residential use play equipment locations. Interior fences located in a play area that has a perimeter fence established shall only have to comply with the latch height requirement indicated in 7.6.2.1.2 This specification provides for the safety of occupants in play areas or zones as it pertains to vehicular intrusion as well as other participant intrusion, and for children containment or entry/exit. This specification has the intent to also keep children inside a predetermined area in an effort to enhance supervision; to keep children from running out of the area into water and other hazards; to minimize the likelihood of facial lacerations on low gate and fence hardware; to minimize the likelihood of abduction; and to restrict access to railroads, highways, roads, and other such hazards.1.3 This specification does not choose the product components for the fence system, the choice of which should be made by the operators of the play space and their specification writers or drafters based upon their determination of the merits of the products that could be used.1.4 The values stated in inch-pound units are to be regarded as standard. The SI values given in parentheses are for information only.1.5 This specification does not purport to address the aspect of safety within a play area or zone. It is the responsibility of the user of this specification to establish appropriate safety practices as related to the play area and determine the applicability of regulatory requirements prior to use.1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

定价： 590元 / 折扣价： 502 元 加购物车

This specification covers reflectorized thermoplastic based pavement striping material of the class that is applied to the road surface in a molten state by screed/extrusion or ribbon extrusion means. It deals with longitudinal applications in non snow plow areas, standard (non-profile) pavement marking applications, and applications on smooth asphalt or concrete surfaces. It does not include asphalt seal coat applications, which use large aggregate resulting in a very rough, open grade finish. This specification establishes requirements with respect to chemical composition and physical property of the thermoplastic pavement marking material, requirements for the optics that are used to reflectorize the thermoplastic pavement marking material after application, field performance requirements for the installed thermoplastic pavement markings, and material application requirements.1.1 This specification covers a reflectorized thermoplastic-based pavement striping material of the class that is applied to the road surface in a molten state by screed/extrusion or ribbon extrusion means. Retroreflectivity of the pavement marking compound is achieved initially by surface application of retroreflective optics at the time of pavement marking application. Upon cooling to normal pavement temperature, the pavement marking material produces an adherent reflectorized stripe of specified thickness and width capable of resisting deformation by traffic. The pavement marking compound includes retroreflective optics (glass beads or composite optics, or both) that are incorporated into the material at the time of manufacture that provide retroreflective properties during the service life of the material.1.1.1 This specification is limited to:1.1.1.1 Longitudinal applications in non snow plow areas,1.1.1.2 Standard (non-profile) pavement marking applications, and1.1.1.3 Applications on smooth asphalt or concrete surfaces. Asphalt seal coat applications, which use large aggregate resulting in a very rough, open grade finish, are excluded from this specification.1.1.2 This specification includes:1.1.2.1 Compositional and physical property requirements of the thermoplastic pavement marking material,1.1.2.2 Requirements for the optics that are used to reflectorize the thermoplastic pavement marking material after application,1.1.2.3 Field performance requirements for the installed thermoplastic pavement markings, and1.1.2.4 Material application requirements.1.2 The values stated in inch-pounds units are to be regarded as the standard except where noted in the document. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

定价： 590元 / 折扣价： 502 元 加购物车

3.1 Fireclay steel-teeming nozzles and sleeves are classified by volume reheat change. Bloating of some refractories results in irregular reheat dimensions, which are difficult to measure. This practice determines the volume without depending upon physical linear measurements.3.2 Blast furnace checkers that have irregular cross-sections are classified by “creep properties.” This practice determines the average cross-sectional area.1.1 This practice covers the methods of calculating areas, volumes, and linear changes of irregularly shaped refractory specimens.1.2 The specimens must have a constant cross-sectional area over a length (L).1.3 The values stated in SI units are to be regarded as the standard.1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

定价： 515元 / 折扣价： 438 元 加购物车

This practice describes methods that may be used to repair damaged hot-dip galvanized coatings on hardware, structural shapes, and other products fabricated prior to hot-dip galvanizing, and uncoated areas remaining after initial hot-dip galvanizing. The damage may be the result of welding or cutting (flame), in which case the coating will be damaged predominantly by burning. This practice can also be used to repair hot-dip galvanized coatings damaged by excessively rough handling during shipping or erection. Requirements concerning the renovation of uncoated areas remaining after initial hot-dip galvanizing are contained within the applicable material specification. This practice describes the use of three types of material that possess the required properties for repair of damaged galvanized coatings, namely: (1) zinc-based solders which includes low melting point zinc alloy repair rods or powders, (2) paints containing zinc dust, and (3) sprayed zinc (metallizing). The material used for repair shall have the specified coating thickness, shall provide barrier protection and preferably be anodic to steel, and application of the coating shall be possible under shop or field conditions.1.1 This practice describes methods that may be used to repair damaged hot-dip galvanized coatings on hardware, structural shapes, and other products fabricated prior to hot-dip galvanizing, and uncoated areas remaining after initial hot-dip galvanizing. The damage may be the result of welding or cutting (flame), in which case the coating will be damaged predominantly by burning. This practice can also be used to repair hot-dip galvanized coatings damaged by excessively rough handling during shipping or erection. Requirements concerning the renovation of uncoated areas remaining after initial hot-dip galvanizing are contained within the applicable material specification.1.2 This practice describes the use of low melting point zinc alloy repair rods or powders made specifically for this purpose, the use of paints containing zinc dust, and the use of sprayed zinc (metallizing).1.3 The extent of repair shall be limited to an area mutually agreeable to the contracting parties. Similarly, contracting parties shall agree to the repair method to be used.1.4 Units—This specification is applicable to orders in either inch-pound units (as A780) or in SI units (as A780M). Inch-pound units and SI units are not necessarily exact equivalents. Within the text of this specification and where appropriate, SI units are shown in brackets. Each system shall be used independently of the other without combining values in any way.1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

定价： 618元 / 折扣价： 526 元 加购物车

5.1 This guide sets forth minimum standard requirements for use in local codes and ordinances relating to commercial and public water spray/play areas.5.2 This guide does not have the effect of law, nor is it intended to supersede local codes and ordinances of a more restrictive nature.5.3 This guide provides certain recommendations to assist those who intend to provide protection against injuries or fatalities associated with any possible vehicle passage into, or pedestrian passage to or from a water spray/play area environment by children. This would include, but not be limited to, state and local governments, model code organizations, building code groups, and consumers. It is understood that the format will vary depending upon the specific use and local conditions.1.1 This guide provides the recommended minimum requirements for various types of fences for commercial and public outdoor water spray/play areas.1.2 This guide provides for the safety of occupants in water spray/play areas or zones as it pertains to vehicular intrusion as well as other participant intrusion, and for children containment or entry/exit.1.3 This guide does not choose the product components for the fence system, the choice of which should be made by the operators of the water spray/play area space and their specification writers or drafters based upon their determination of the merits of the products that could be used.1.4 The values stated in inch-pound units are to be regarded as the standard. The SI values stated in parentheses are provided for information purposes only.1.5 This guide does not purport to address the aspect of safety within a water spray/play area or zone. It is the responsibility of the user of this guide to establish appropriate safety practices as related to the water spray/play area and determine the applicability of regulatory requirements prior to use.1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

定价： 515元 / 折扣价： 438 元 加购物车