4.1 This practice is used when it is necessary to test a product from which specimens cannot be cut directly. Procedures are given for preparing pieces suitable for preparing specimens of the product.1.1 This practice covers methods for the preparation of pieces of a rubber vulcanizate that is not in the form of sheet. Such pieces are used as a source from which specimens are obtained for testing.1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.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： 515元 / 折扣价： 438 元 加购物车

This specification covers four types of hydrated lime. Type N and S are suitable for use in mortar, in scratch and brown coats of cement plaster, for stucco, and for addition to Portland-cement concrete. Types NA and SA are air-entrained hydrated limes that are suitable for use in any of the above uses where the inherent properties of lime and air-entrainment are desired. The four types of lime under this specification shall be designated as Type N which is the normal hydrated lime for masonry purposes, type S which is the special hydrated lime for masonry purposes, type NA which is the normal air-entraining hydrated lime for masonry purposes and type SA which is the special air-entraining hydrated lime for masonry purposes. Hydrated lime for masonry purposes shall conform to the required chemical composition for calcium and magnesium oxides and carbon dioxide. The hydrated lime covered by Types N or S in this specification shall contain no additives for the purpose of entraining air.1.1 This specification covers four types of hydrated lime. Types N and S are suitable for use in mortar, in scratch and brown coats of cement plaster, for stucco, and for addition to portland-cement concrete. Types NA and SA are air-entrained hydrated limes that are suitable for use in any of the above uses where the inherent properties of lime and air-entrainment are desired. The four types of lime sold under this specification shall be designated as follows:1.1.1 Type N—Normal hydrated lime for masonry purposes.1.1.2 Type S—Special hydrated lime for masonry purposes.1.1.3 Type NA—Normal air-entraining hydrated lime for masonry purposes.1.1.4 Type SA—Special air-entraining hydrated lime for masonry purposes.NOTE 1: Type S, special hydrated lime, and Type SA, special air-entraining hydrated lime, are differentiated from Type N, normal hydrated lime, and Type NA, normal air-entraining hydrated lime, principally by their ability to develop high, early plasticity and higher water retentivity, and by a limitation on their unhydrated oxide content.NOTE 2: For normal (Type N) and special (Type S) finishing hydrated lime, refer to Specification C206.NOTE 3: Some building codes prohibit the use of air-entraining materials in mortar, because of the accompanying reduction in bond and compressive strength. Where increased freeze-thaw resistance is important, air-entraining may be beneficial. Air-entraining lime should not be used as a finishing lime.NOTE 4: For lime putty, refer to Specification C1489.1.2 The values stated in SI units are to be regarded as 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： 515元 / 折扣价： 438 元 加购物车

This specification covers 6101 aluminum-alloy extruded bar, rod, tube, pipe, (Schedules 40 and 80), structural profiles, and profiles in selected tempers for use as electric conductors. The bars, rods, tubes, pipes, structural profiles and profiles shall be produced by hot extrusion or by similar methods. Pipe or tube may be produced through porthole or bridge type dies. Tensile properties of the specimens such as tensile and yield strengths and bending shall be determined by tension test and bending test, respectively. Electrical resistivity and conductivity shall be determined.1.1 This specification covers 6101 aluminum-alloy extruded bar, rod, tube, pipe, (Schedules 40 and 80), structural profiles, and profiles in selected tempers for use as electric conductors as follows:1.1.1 Type B—Hot-finished bar, rod, tube, pipe, structural profiles and profiles in T6, T61, T63, T64, T65, and H111 tempers with Type B tolerances, as shown in the “List of ANSI Tables of Dimensional Tolerances.”1.1.2 Type C—Hot-finished rectangular bar in T6, T61, T63, T64, T65, and H111 tempers with Type C tolerances as listed in the tolerances and permissible variations tables.1.2 Alloy and temper designations are in accordance with ANSI H35.1. The equivalent Unified Numbering System alloy designation in accordance with Practice E527 is A96101 for Alloy 6101.NOTE 1: Type A material, last covered in the 1966 issue of this specification, is no longer available; therefore, requirements for cold-finished rectangular bar have been deleted.1.3 The values stated in either SI 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.1.4 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 This standard classifies soils from any geographic location into categories representing the results of prescribed laboratory tests to determine the particle-size characteristics, the liquid limit, and the plasticity index.5.2 The assigning of a group name and symbol(s) along with the descriptive information required in Practice D2488 can be used to describe a soil to aid in the evaluation of its significant properties for engineering use.5.3 The various groupings of this classification system have been devised to correlate in a general way with the engineering behavior of soils. This standard provides a useful first step in any field or laboratory investigation for geotechnical engineering purposes.5.4 This standard may also be used as an aid in training personnel in the use of Practice D2488.5.5 This standard may be used in combination with Practice D4083 when working with frozen soils.NOTE 5: Notwithstanding the statements on precision and bias contained in this standard: The precision of this test method is dependent on the competence of the personnel performing it and the suitability of the equipment and facilities used. Agencies that meet the criteria of Practice D3740 are generally considered capable of competent and objective testing. Users of this test method are cautioned that compliance with Practice D3740 does not in itself assure reliable testing. Reliable testing depends on several factors; Practice D3740 provides a means for evaluating some of those factors.1.1 This practice describes a system for classifying mineral and organo-mineral soils for engineering purposes based on laboratory determination of particle-size characteristics, liquid limit, and plasticity index and shall be used when precise classification is required.NOTE 1: Use of this standard will result in a single classification group symbol and group name except when a soil contains 5 to 12 % fines or when the plot of the liquid limit and plasticity index values falls into the crosshatched area of the plasticity chart. In these two cases, a dual symbol is used, for example, GP-GM, CL-ML. When the laboratory test results indicate that the soil is close to another soil classification group, the borderline condition can be indicated with two symbols separated by a slash. The first symbol should be the one based on this standard, for example, CL/CH, GM/SM, SC/CL. Borderline symbols are particularly useful when the liquid limit value of clayey soils is close to 50. These soils can have expansive characteristics and the use of a borderline symbol (CL/CH, CH/CL) will alert the user of the assigned classifications of expansive potential.1.2 The group symbol portion of this system is based on laboratory tests performed on the portion of a soil sample passing the 3-in. (75-mm) sieve (see Specification E11).1.3 As a classification system, this standard is limited to naturally occurring soils.NOTE 2: The group names and symbols used in this test method may be used as a descriptive system applied to such materials as shale, claystone, shells, crushed rock, etc. See Appendix X2.1.4 This standard is for qualitative application only.NOTE 3: When quantitative information is required for detailed designs of important structures, this test method must be supplemented by laboratory tests or other quantitative data to determine performance characteristics under expected field conditions.1.5 This standard is the ASTM version of the Unified Soil Classification System. The basis for the classification scheme is the Airfield Classification System developed by A. Casagrande in the early 1940s.2 It became known as the Unified Soil Classification System when several U.S. Government Agencies adopted a modified version of the Airfield System in 1952.1.6 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.1.7 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.1.8 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

Electronic transducer-based pressure measurement systems must be subjected to static calibration under room conditions to ensure reliable conversion from system output to pressure during use in laboratory or in field applications. Transducer-based pressure measurement systems should be calibrated before initial use and at least quarterly thereafter and after any change in the electronic or mechanical configuration of a system. Transducer-based pressure measurement systems should also be recalibrated if a component is dropped; overloaded; if ambient test conditions change significantly; or for any other significant changes in a system. Static calibration is not appropriate for transducerbased systems used under operating environmental conditions involving vibration, shock, or acceleration.1.1 This practice covers the procedure for static calibration of electronic transducer-based systems used to measure fluid pressures in laboratory or in field applications associated with geotechnical testing. 1.2 This practice is used to determine the accuracy of electronic transducer-based pressure measurement systems over the full pressure range of the system or over a specified operating pressure range within the full pressure range. 1.3 This practice may also be used to determine a relationship between pressure transducer system output and applied pressure for use in converting from one value to the other (calibration curve). This relationship for electronic pressure transducer systems is usually linear and may be reduced to the form of a calibration factor or a linear calibration equation. 1.4 The values stated in SI units are to be regarded as the standard. The inch-pound units in parentheses are for information only. 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 and health practices and determine the applicability of regulatory limitations prior to use. Specific precautionary statements are given in Section 7.

定价： 0元 / 折扣价： 0 元

This specification covers annealed and intermediate tempered round aluminum wires suitable for electrical purposes like stranding into conductors or for solid single conductors, either bare or insulated. The tempers covered here are 1350-O, 1350-H12 or 1350-H22, 1350-H14 or 1350-H24, 1350-H16 or 1350-H26, and 1350-H142 or 1350-H242. Materials shall be made from drawing stock in which the manufacturer shall have the option of producing the intermediate tempers by either strain-hardening only, by strain-hardening and partial annealing. The wires shall adhere to standard nominal diameters, cross-sectional areas, masses per unit length, and densities. Wires shall also be tested to evaluate their conformance to specified values of tensile strength and electrical resistivity.1.1 This specification covers aluminum 1350-O (annealed), 1350-H12 or -H22 (1/4 hard), 1350-H14 or -H24 (1/2 hard), 1350-H16 or -H26 (3/4 hard) and 1350-H142 or -H242 (1/2 hard), suitable for stranding into conductors or for solid single conductors, either bare or insulated (see Table 1 or Table 2).1.2 The values stated in inch-pound units or SI units are to be regarded separately as standard. The values in each system are not exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the specification.1.2.1 For density, resistivity, and temperature, the values stated in SI units are to be regarded as standard.NOTE 1: Prior to 1975, aluminum 1350 was designated as EC-aluminum.NOTE 2: The aluminum and temper designations conform to ANSI H35.1. Aluminum 1350 corresponds to Unified Numbering System A91350 in accordance with Practice E527.1.3 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

1.1 This specification covers aluminum 1350-O (annealed), 1350-H12 or -H22 (1/4 hard), 1350-H14 or -H24 (1/2 hard), 1350-H16 or -H26 (3/4 hard) and 1350-H142 or -H242 (1/2 hard), suitable for stranding into conductors or for solid single conductors, either bare or insulated. Note 1-Prior to 1975, aluminum 1350 was designated EC aluminum. Note 2-The aluminum and temper designations conform to ANSI H35.1(M). Aluminum 1350 corresponds to Unified Numbering System A91350 in accordance with Practice E527. Note 3-This specification is the metric companion of Specification B609.

定价： 0元 / 折扣价： 0 元

This specification covers asbestos textile materials used for electrical insulating purposes having a specified minimum mass % of asbestos fiber, excluding the mass of other inorganic reinforcing material that may be present. Asbestos textiles are classified into three types (Types II, IV, and VI) according to magnetic rating, and into grades (Underwriters, A, AA, AAA, and AAAA) according to the percentage of asbestos content by mass. Textile materials shall meet chemical composition (asbestos content) and magnetic rating specific to their grade and type.1.1 This specification covers asbestos textile materials used for electrical insulating purposes having a minimum of 80% asbestos fiber, by mass, excluding the mass of other inorganic reinforcing material that may be present.NOTE 1: Specifications for other asbestos textile products are covered in Specifications D299, D315, D375, D1061, and D1571.1.2 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 Warning—Breathing of asbestos dust is hazardous. Asbestos and asbestos products present demonstrated health risks for users and for those with whom they come into contact. In addition to other precautions, when working with asbestos-cement products, minimize the dust that results. For information on the safe use of chrysoltile asbestos, refer to “Safe Use of Chrysotile Asbestos: A Manual on Preventive and Control Measures.”21.4 The following safety hazards caveat pertains only to the test methods, Section 10, described in this specification: 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. For specific safety hazard, see 1.3.1.5 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： 0元 / 折扣价： 0 元

This specification covers the selection and installation of expanded metal fence systems for applications on new or retrofit fences capable of denying or delaying unwanted access into or out of a commercial, industrial, governmental, or institutional facility as applicable to homeland security, or where the possibility of malevolent incursion is significant. The metal fences can be expanded (Type 1), or expanded and flattened (Type 2); and uncoated (Class 1), hot-dip zinc coated or galvanized (Class 2), or corrosion-resisting steel (Class 3). Fencings shall conform to specified standard sizes and dimensions.1.1 This specification covers selection and installation of expanded metal fence systems for applications on new or retrofit fences for commercial, industrial, governmental, or institutional facilities as applicable to homeland security, or where the possibility of malevolent incursion is significant. See Fig. 1 for typical examples of expanded metal fence applications. This type of fence system is not recommended for residential or public recreational facilities such as pools, schools, and kindergartens.FIG. 1 Expanded Metal Fencing Applications1.2 This specification is intended to guide those responsible for or concerned with the design and installation of an expanded metal fence system capable of denying or delaying unwanted access into or out of an area.1.3 No recommendation is made or implied here as to the merits of the product from any particular manufacturer. Choice of component selection for the expanded metal system should be made by the writer of the project specification based on their own perception of the product’s merit and the consequence of a malevolent incursion.1.4 Units—The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.1.5 This specification does not purport to address all of the safety and security concerns, if any, associated with homeland security. It is the responsibility of the user of this standard to establish the required and appropriate level of security.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 guide provides a general approach to environmental site characterization. Environmental site characterization provides information for a wide variety of uses including: Determination of ambient background or baseline conditions, including, but not limited to, geochemistry, hydrogeology, microbiology, mineralogy, and water quality. Assessment of site suitability for a future use or a use which may be compromised by site characteristics, such as flooding, seismic activity, and landslides (mass wasting). Protection of site quality from the detrimental effects of human activities and natural processes, or minimization of adverse environmental impacts. Specific examples of uses of environmental site characterization for these purposes include: (1) delineation of groundwater or wellhead protection areas, (2) assessing the suitability of sites for disposal of industrial and residential liquid and solid wastes, (3) assessing soil suitability for land treatment of wastes, and (4) evaluating soil suitability for agricultural practices in order to minimize soil erosion and contamination from agricultural chemicals. Assessment of the type, distribution, and extent of surface and subsurface contamination to determine compliance; risk to human health and the environment; and responsibility for remediation. Such assessments include: (1) sites involved in real estate transactions, (2) controlled and uncontrolled hazardous waste sites, (3) controlled and uncontrolled municipal solid waste, wastewater, and other nonhazardous waste disposal sites. Assessment of surface and subsurface environmental processes that affect the fate, mobilization, and rate of transport of natural and anthropogenic chemicals in the subsurface. Assessment of the type, distribution, and extent of natural and anthropogenic radioactive elements in the subsurface. Assessment of the degree of risk that adverse subsurface site conditions not related to 4.1.4 and 4.1.5 pose to human health and safety or the natural ecosystem. Selection and design of remediation systems for cleanup of subsurface contamination and of other reclamation or rehabilitation practices on disturbed land. This guide is meant to be a flexible description of investigation requirements; methods defined by other ASTM Standards (Appendix X1) or non-ASTM techniques (Appendix X2) may be appropriate in some circumstances. The methods and amount of effort required for environmental site characterization will vary with site conditions and objectives of the investigation. This standard does not set mandatory guidelines and does not constitute a list of necessary steps or procedures for all investigations. In karst and fractured rock hydrogeologic settings, this guide should be used in conjunction with Guide D5717.1.1 This guide covers a general approach to planning field investigations that is useful for any type of environmental investigation with a primary focus on the subsurface and major factors affecting the surface and subsurface environment. Generally, such investigations should identify and locate, both horizontally and vertically, significant soil and rock masses and groundwater conditions present within a given site area and establish the characteristics of the subsurface materials by sampling or in situ testing, or both. The extent of characterization and specific methods used will be determined by the environmental objectives and data quality requirements of the investigation. This guide focuses on field methods for determining site characteristics and collection of samples for further physical and chemical characterization. This guide does not address special considerations required for characterization of karst and fractured rock terrane. In such hydrogeologic settings refer to Quinlan and Guide D5717, (1). 1.2 This guide refers to ASTM standard methods by which soil, rock, vadose zone, and groundwater conditions may be determined. Laboratory testing of soil, rock, and groundwater samples is specified by other ASTM standards which are not specifically discussed in this guide. Laboratory methods for measurement of physical properties relevant to environmental investigations are included in Appendix X1. 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 and health practices and determine the applicability of regulatory limitations prior to use. 1.5 This guide offers an organized collection of information or a series of options and does not recommend a specific course of action. This document cannot replace education or experience and should be used in conjunction with professional judgment. Not all aspects of this guide 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.

定价： 0元 / 折扣价： 0 元

This specification covers aluminum 1350-O, annealed, 1350-H12 or -H22, 1350-H14, 1350-H16 or -H26, and 1350-H19 wire, rectangular or square in shape with round corners for use as electrical conductors in insulated magnet wire. The aluminum wire shall be made from rod in accordance with the requirements specified. Tensile strength test, low stress elongation test, bending test, and electrical resistivity test shall be made to conform to the specified requirements.1.1 This specification covers aluminum 1350-O, annealed, 1350-H12 or -H22 (1/4 hard), 1350-H14 or -H24 (1/2 hard), 1350-H16 or -H26 (3/4 hard), and 1350-H19 (extra hard) wire, rectangular or square in shape with rounded corners for use as electrical conductors in insulated magnet wire.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 the values from the two systems may result in non-conformance with the specification. For conductor sizes designated by AWG or kcmil sizes, the requirements in SI units are numerically converted from the corresponding requirements in inch-pound units. For conductor sizes designated by AWG or kcmil, the requirements in SI units have been numerically converted from 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.NOTE 1: The aluminum and temper designations conform to ANSI H35.1. Aluminum 1350 corresponds to Unified Numbering System A91350 in accordance with Practice E527.1.3 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

This specification covers tinned, round, soft, or annealed copper wire for electrical purposes. The tinned wire shall conformto the required tensile strength and elongation. Electrical resistivity shall be measured. The wire sizes shall be expressed as the diameter of the wire and shall be measured using micrometre caliper equipped with a vernier. The tin coating shall be continuous. The continuity of the wire shall be determined on representative samples taken before stranding or insulating. The continuity of tinning shall be determined by the hydrochlroic acid-sodium polysulfide test. The tin coating shall be firmly adherent to the surface of the copper. The adherence of coating on the wire shall be determined on representative samples taken before stranding or insulating. The adherence of coating shall be determined by the wrapping and immersion test.1.1 This specification covers tin-coated, round, soft, or annealed copper wire for electrical purposes.1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.1.2.1 Exceptions—The SI values for density, resistivity, and volume are to be regarded as 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

This specification covers hydraulic hydrated lime for structural purposes. Hydraulic hydrated lime may be used in the scratch or brown coat of plaster, stucco, mortar, or in Portland-cement concrete either as blend, amendment, or admixture. The hydraulic hydrated lime shall conform to the chemical composition requirements for calcium oxide, magnesium oxide, silica, iron oxide, aluminum oxide, and carbon dioxide. The sample shall be subjected to the following test methods: chemical analysis; fineness; normal consistency; time of setting; autoclave expansion; and compressive strength.1.1 This specification covers hydrated hydraulic lime for structural purposes.1.2 Hydrated hydraulic lime may be used in the scratch or brown coat of plaster, stucco, mortar, or in portland-cement concrete either as blend, amendment, or admixture.1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. Within the text, the inch-pound units are shown in brackets. 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.1.4 The following precautionary caveat pertains only to the test method portion, Section 11 of this specification: 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 specification covers dimethyl ether (DME) for use as a fuel in engines specifically designed or modified for DME and for blending with liquefied petroleum gas. It is intended for use by DME manufacturers, purpose-built engine developers, in contracts for the purchase of DME for fuel purposes, and for the guidance of consumers of this type of fuel. This specification includes chemical composition and other requirements, sampling, and test methods.1.1 This specification covers dimethyl ether (DME) for use as a fuel in engines specifically designed or modified for DME and for blending with liquefied petroleum gas (LPG). This specification is for use by manufacturers of dimethyl ether, by engine developers of purpose-built engines, in contracts for the purchase of DME for fuel purposes, and for the guidance of consumers of this type of fuel.NOTE 1: The generation and dissipation of static electricity can create problems in the handling of DME. For more information on the subject, see Guide D4865.1.2 The values stated in SI units are to be regarded as standard. Units in parentheses are for information only.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

1.1 These test methods cover the determination of the amount of apparent free phenol in synthetic phenolic resins or solutions used for coating purposes. The test method for isolation of the free phenol applies to all the commonly used resins except those containing p-phenyl-phenol. Test Method A applies to the simpler phenols up to and including the xylenols; Test Method B applies to the common alkylated phenols. >1.2 This standard does not purport to address all of the safety problems, 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