定价： 533元 / 折扣价： 454 元

定价： 533元 / 折扣价： 454 元

定价： 605元 / 折扣价： 515 元

定价： 975元 / 折扣价： 829 元

定价： 975元 / 折扣价： 829 元 加购物车

定价： 0元 / 折扣价： 0 元 加购物车

定价： 156元 / 折扣价： 133 元

定价： 605元 / 折扣价： 515 元 加购物车

定价： 0元 / 折扣价： 0 元 加购物车

定价： 156元 / 折扣价： 133 元 加购物车

4.1 Each Facility Rating Scale in this classification provides a means for estimating the level of serviceability of a building or facility for one topic of serviceability, and for comparing that level against the level of any other building or facility.4.2 This classification can be used for comparing how well different buildings or facilities meet a particular requirement for serviceability. It is applicable despite differences such as location, structure, mechanical systems, age, and building shape.4.3 This classification can be used to estimate the amount of variance of serviceability from target or from requirement, for a single office facility, or within a group of office facilities.4.4 This classification can be used to estimate the following: (1) serviceability of an existing facility for uses other than its present use; (2) the serviceability (potential) of a facility that has been planned but not yet built; and (3) the serviceability (potential) of a facility for which a remodelling has been planned.4.5 The use of this classification does not result in building evaluation or diagnosis. Building evaluation or diagnosis generally requires special expertise in building engineering or technology and the use of instruments, tools, or measurements.4.6 This classification applies only to facilities that are building constructions or parts thereof. (While this classification may be useful in rating the serviceability of facilities that are not building constructions, such facilities are outside the scope of this classification.)4.7 This classification is not intended for, and is not suitable for, use for regulatory purposes, nor for fire hazard assessment nor for fire risk assessment.1.1 This classification covers pairs of scales for classifying an aspect of the serviceability of an office facility, that is, the capability of an office facility to meet certain possible requirements for special facilities and technologies.1.2 Each pair of scales, shown in Figs. 1-4, is for classifying one topic of serviceability. Each paragraph in an Occupant Requirement Scale (DEMAND Scale see Figs. 1-4) summarizes one level of requirement for serviceability on which occupants might require. The matching paragraph in the Facility Rating Scale (SUPPLY Scale see Figs. 1-4) is an interpretation of the requirement into a description of certain features of a facility which, taken in combination, indicate that the facility is likely to meet that level of required serviceability.FIG. 1 Demand Scale A.13.1 for Group or Shared Conference CenterFIG. 1 Supply Scale A.13.1 for Group or Shared Conference Center (continued)FIG. 2 Demand Scale A.13.2 for Video Conferencing ProvisionFIG. 2 Supply Scale A.13.2 for Video Conferencing Provision (continued)FIG. 3 Demand Scale A.13.3 for Simultaneous InterpretationFIG. 3 Supply Scale A.13.3 for Simultaneous Interpretation (continued)FIG. 4 Demand Scale A.13.4 for Satellite and Microwave LinksFIG. 4 Supply Scale A.13.4 for Satellite and Microwave Links (continued)FIG. 5 Demand and Supply Scales A.13.5 for Telecommunications Center1.3 The entries in the Facility Rating Scale (See Figs. 1-4) are indicative and not comprehensive. They are for quick scanning, to estimate approximately, quickly, and economically, how well an office facility is likely to meet the needs of one or another type of occupant group over time. The entries are not for measuring, knowing, and evaluating how an office facility is performing.1.4 This classification can be used to estimate the level of serviceability of an existing facility. It can also be used to estimate the serviceability of a facility that has been planned but not yet built, such as one for which single-line drawings and outline specifications have been prepared.1.5 This classification indicates what would cause a facility to be rated at a certain level of serviceability, but it does not state how to conduct a serviceability rating nor how to assign a serviceability score. That information is found in Practice E1679. The scales in this classification are complementary to and compatible with Practice E1679. Each requires the other.1.6 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.1.7 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 provides basic criteria for the development and operation of a certification body, the development and operation of a certification program, and the development and use of customary mechanisms to evaluate a candidate’s knowledge, skill, and ability.4.2 The basic criteria provided by this practice are intended to be supplemented by more specific criteria serving the requirements of the certification body.4.3 The certification body and its program, accredited according to the requirements of ANSI/ISO/IEC 17024 and this practice, shall be considered as having met the full intent of this practice.1.1 This practice provides supplemental requirements to those of ANSI/ISO/IEC 17024 for bodies that certify personnel engaged in inspection and testing of construction activities and materials used in construction, including Special Inspection. ANSI/ISO/IEC 17024 provides generic requirements that can be adapted to any discipline where assurance that certified individual meets the requirements of the certification scheme. Therefore, certification bodies certifying personnel engaged in inspection and testing of construction activities and materials used in construction, including Special Inspection, must meet the requirements of this practice and ANSI/ISO/IEC 17024.1.2 This practice may be used as a reference by:1.2.1 Developers of standards requiring personnel certification in inspection and testing of construction activities and materials used in construction, including Special Inspection, as a reference to harmonize terminology and reduce confusion among users;1.2.2 Personnel certification bodies that establish criteria and certify construction inspection, construction testing, and Special Inspection agency personnel against specific requirements,1.2.3 Accreditation bodies that accredit certification bodies, and1.2.4 Users and specifiers as a reference when requiring personnel certification.1.3 This practice follows the format of ANSI/ISO/IEC 17024 and provides additional requirements where needed.1.4 Certification may be specific to a single test or inspection method or practice or a grouping or collection of methods or practices (any such method, code, or practice being hereinafter referred to as “method,” or collectively as “methods”).1.5 Personnel certification is an important aspect of the quality system of agencies engaged in inspection and testing of construction activities and materials used in construction, including Special Inspection. Certification of personnel is required to meet the personnel qualifications of Practice E329.1.6 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

5.1 Segmented gamma-ray scanning provides a nondestructive means of measuring the nuclide content of scrap and waste where the specific nature of the matrix and the chemical form and relationship between the nuclide and matrix may be unknown.5.2 The procedure can serve as a diagnostic tool that provides a vertical profile of transmission and nuclide concentration within the item.5.3 Item preparation is generally limited to good waste/scrap segregation practices that produce relatively homogeneous items that are required for any successful waste/inventory management and assay scheme, regardless of the measurement method used. Also, process knowledge should be used, when available, as part of a waste management program to complement information on item parameters, container properties, and the appropriateness of calibration factors.5.4 To obtain the lowest detection levels, a two-pass assay should be used. The two-pass assay also reduces problems related to potential interferences between transmission peaks and assay peaks. For items with higher activities, a single-pass assay may be used to increase throughput.1.1 This test method covers the transmission-corrected nondestructive assay (NDA) of gamma-ray emitting special nuclear materials (SNMs), most commonly 235U, 239Pu, and 241Am, in low-density scrap or waste, packaged in cylindrical containers. The method can also be applied to NDA of other gamma-emitting nuclides including fission products. High-resolution gamma-ray spectroscopy is used to detect and measure the nuclides of interest and to measure and correct for gamma-ray attenuation in a series of horizontal segments (collimated gamma detector views) of the container. Corrections are also made for counting losses occasioned by signal processing limitations (1-3).21.2 There are currently several systems in use or under development for determining the attenuation corrections for NDA of radioisotopic materials (4-8). A related technique, tomographic gamma-ray scanning (TGS), is not included in this test method (9, 10, 11).1.2.1 This test method will cover two implementations of the Segmented Gamma Scanning (SGS) procedure: (1) Isotope Specific (Mass) Calibration, the original SGS procedure, uses standards of known radionuclide masses to determine detector response in a mass versus corrected count rate calibration that applies only to those specific radionuclides for which it is calibrated, and (2) Efficiency Curve Calibration, an alternative method, typically uses non-SNM radionuclide sources to determine system detection efficiency vs. gamma energy and thereby calibrate for all gamma-emitting radionuclides of interest (12).1.2.1.1 Efficiency Curve Calibration, over the energy range for which the efficiency is defined, has the advantage of providing calibration for many gamma-emitting nuclides for which half-life and gamma emission intensity data are available.1.3 The assay technique may be applicable to loadings up to several hundred grams of nuclide in a 208-L [55-gal] drum, with more restricted ranges to be applicable depending on specific packaging and counting equipment considerations.1.4 Measured transmission values must be available for use in calculation of segment-specific attenuation corrections at the energies of analysis.1.5 A related method, SGS with calculated correction factors based on item content and density, is not included in this standard.1.6 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.1.7 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. Specific precautionary statements are given in Section 10.1.8 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： 646元 / 折扣价： 550 元 加购物车

定价： 260元 / 折扣价： 221 元 加购物车

This specification covers the material, manufacturing, and specialized property requirements for producing special-purpose aviation distillate test fuels that are intended only for engineering and certification testing of aircraft, engines, and aircraft equipment. It deals with special-purpose test fuels that may be used to evaluate the operability, performance and durability of aviation compression-ignition engines when operating with fuels of marginal performance. Aviation distillate fuel, except as otherwise specified in this specification, shall consist predominantly of refined hydrocarbons derived from conventional sources such as crude oil, natural gas liquid condensates, heavy oil, shale oil, and oil sands. The use of middle distillate fuel blends containing components from other sources is permitted. This specification also lists acceptable additives for aviation distillate special-purpose test fuels. Use of this specification for engineering and certification testing of aircraft is not mandatory. It is directed at civil applications, and maintained as such, but may be adopted for military, government, or other specialized uses.1.1 This specification is intended to support purchasing agencies when formulating specifications for purchases of aviation distillate fuel under contract.1.2 This specification defines specialized property requirements to produce special-purpose aviation distillate test fuels that are intended only for engineering and certification testing of aircraft, engines, and aircraft equipment. Use of this specification for engineering and certification testing of aircraft is not mandatory. Its use is at the discretion of the aircraft manufacturer, engine manufacturer, or certification authorities when determining criteria for validation of aircraft equipment design.1.3 This specification defines special-purpose test fuels that may be used to evaluate the operability, performance and durability of aviation compression-ignition engines when operating with fuels of marginal performance. The aviation distillate test fuels defined in this specification are not intended for general purpose use in aircraft. This specification also lists acceptable additives for aviation distillate special-purpose test fuels.1.4 Specification D8147 is directed at civil applications, and maintained as such, but may be adopted for military, government, or other specialized uses.1.5 This specification can be used as a standard in describing the quality of aviation distillate fuel from production to the aircraft. However, this specification does not define the quality assurance testing and procedures necessary to ensure that fuel continues to comply with this specification after batch certification.1.6 This specification does not include all fuels satisfactory for aviation compression-ignition (CI) engines.1.7 The values stated in SI units are to be regarded as standard.1.7.1 Exception—Other units of measurement are included in this standard.1.8 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.1.9 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