定价： 975元 / 折扣价： 829 元

定价： 975元 / 折扣价： 829 元 加购物车

定价： 689元 / 折扣价： 586 元

定价： 754元 / 折扣价： 641 元

定价： 767元 / 折扣价： 652 元 加购物车

4.1 The purpose of this classification is to identify potential concerns and effects which may occur during the life cycle (installation, service, removal, and disposal) of insulation materials and accessories resulting from direct contact or indirect action or events.4.2 This classification does not identify remedial or preventive steps that may be taken to correct potential problems or hazards; rather it is intended as a checklist that will make it easier to deal constructively with these potentials, and to determine what, if any, specific requirements need to be added to other standards concerning insulation materials or accessories. (See Appendix X2 for sources of information.)4.3 This classification recognizes that proper handling and installation procedures can substantially reduce the potential concerns and effects. Further, it recognizes that in some situations the presence or creation of potential effects or hazards results from an intervening act of human or natural origin, or depends on access to or contact with the materials or accessories. Lack of compatibility of the individual components of an insulation system with each other or the environmental conditions within which the system will operate, or both, may create unanticipated effects. (See Appendix X3.)1.1 This classification identifies potential concerns and effects that could result from direct contact with thermal insulation materials and accessories, or be caused by indirect action of events such as aging, fire, or physical disturbance.1.2 Intent of Classification: 1.2.1 It is the intent of this classification to alert others to potential concerns, effects, hazards, or risk.1.2.2 It is not the intent of this classification to establish the degree of risk or hazard or limiting values of potential hazards.1.2.3 It is not the intent of this classification to establish or recommend methods or markings to reduce or mitigate the potential; however, it is recognized that correct procedures and precautionary measures can substantially reduce or eliminate some of the potential concerns, effects, hazards, or risks.NOTE 1: See Appendix X1 for commentary.1.3 This classification recognizes the responsibility of producers and users, as appropriate, to: (1) provide information on known effects or hazards, (2) advise on established safety and health practices, and (3) determine applicable regulatory requirements.1.4 This classification does not address the health and safety concerns of thermal insulation materials and accessories during manufacture.1.5 Omission of an item from this classification does not imply an absence of potential concerns or effects.1.6 There is no importance in the order of listing.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

5.1 Chamber testing is a globally-accepted method for measuring the emissions of VOCs from building materials and products. Chamber emission test data have a variety of uses including identification and labeling of products as low-VOC emitting for improved indoor air quality, manufacturing quality control, and development of new and improved products for reduced VOC emissions.5.2 Currently, an inter-laboratory study (ILS) is the most frequently used method for assessing the bias of a laboratory’s VOC emission test results. An ILS typically relies on a VOC source with an uncharacterized emission rate. Consequently, a large number of participants (Practice E691 recommends 30, with a minimum requirement of six) are needed to produce the data required to calculate a laboratory’s performance relative to the central tendency and distribution of the results for all participants. Due to the participant size requirement and other logistical issues, an ILS involves significant planning and coordination to achieve useful results.5.3 Inter-laboratory studies have often shown significant variations in measured VOC emission rates among participating laboratories for a given source. Variability in the emission rate from the source often is suspected to be a contributing factor, but it is difficult to be certain of the cause. Thus, better characterized sources are needed for evaluating the ability of laboratories to generate VOC emission test results with acceptable bias as discussed in 8.6.5.4 Proficiency tests (PT) for VOC emission testing typically focus on a laboratory’s analytical capabilities. For example, an analytical PT relies on a certified standard prepared by an accredited vendor as a reference. A laboratory analyzes the PT sample without knowledge of its concentration value. Acceptance of the results is judged by the deviation from the known value. Use of reference materials can expand analytical PT schemes to also include the impacts of test sample handling, test specimen preparation, chamber operation, and chamber air sampling.5.5 Laboratories accredited under ISO/IEC 17025 are required to derive uncertainty estimates for their test results. Typically, this is done by developing an uncertainty budget and estimating an expanded uncertainty (ISO/IEC Guide 98, Practice D7440). Reference materials not accredited under ISO/IEC 17025 should still be delivered with documented uncertainty budgets. An uncertainty budget for a VOC emission test combines relevant sources of measurement uncertainty for all steps in the testing process from test specimen preparation through air sample analysis. A more efficient approach to determining the overall bias and precision for a VOC emission test is with repeated testing of a reference material (see ISO/IEC Guide 98, ISO Guide 33). This guide addresses the estimation of bias through comparison of the measured value to the reference material value. The precision is determined through repeated testing of multiple reference materials, ideally from the same production batch (see Practices D6299 and E691).5.6 Other uses of an emissions reference material include verifying quality control emission measurements of manufactured product batches and providing traceability for third party certification.1.1 This guide provides procedures for using a reference material with a known emission rate of a volatile organic compound (VOC) to estimate the bias associated with a VOC emission chamber test.1.2 This guide may be used to assess measurements of VOC emissions conducted in a variety of environmental chambers, such as small-scale chambers, full-scale chambers, emission cells, and micro-scale chambers.1.3 This guide may be used to assess measurements of VOC emissions from a variety of sources including “dry” materials (for example, carpet, floor tile and particleboard) and “wet” materials (for example, paint and cleaning products).1.4 This guide can be used to support quality control efforts by emissions testing laboratories, third party accreditation of testing laboratories participating in emissions testing programs, and quality control efforts by manufacturers of building and other materials.1.5 This guide may be used to support the determination of precision and bias of other commonly used VOC emission standards including Guide D5116, Test Method D6007, ISO 16000-9, ANSI/BIFMA M7.1, and CDPH/EHLB/Standard Method V1.2.1.6 This guide also describes the attributes of a suitable emission reference material and the different methods available to independently determine the reference material’s VOC emission rate.1.7 The values stated in SI units are to be regarded as standard. No 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

定价： 975元 / 折扣价： 829 元 加购物车

This specification covers requirements for incorporating a tenderness marketing claim to finished labelling, advertisements, or promotions, or a combination thereof, associated with beef cuts to distinguish product value in the marketplace. The claim requirements are the certified tender and certified very tender. This specification also notes that the beef cuts that are being considered for the tenderness marketing claim will be certified through third party auditing activities.1.1 This specification covers requirements for incorporating a tenderness marketing claim to finished labeling, advertisements, or promotions, or a combination thereof, associated with beef cuts to distinguish product value in the marketplace.1.2 The marketing claim requirements in this specification can be used by all parties interested in highlighting production and marketing practices of tender beef muscles/cuts in finished labeling, advertisements, or promotions, or a combination thereof, to distinguish their products in the marketplace. A tenderness marketing claim standard for beef cuts facilitates communication by enhancing the understanding of finished product expectations among producers, processors, and consumers.1.3 Beef cuts being considered for this tenderness marketing claim will be certified through third party auditing activities. Firms seeking these services must adhere to the standard practices associated with this specification as recognized by the certifying body.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 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 guide identifies U.S., Canadian and other international test methods used in the process of determining and evaluating textile and apparel care label instruction effectiveness for properties such as colorfastness, susceptibility to damage due to retained bleaching agents, dimensional stability, safe ironing temperatures and appearance retention (see 1.5 for exclusions).4.2 This guide is intended for general use by those who wish to compare care label evaluation methods of the United States with those of both The International Organization for Standardization (ISO) and the Canadian General Standards Board (CGSB).4.3 The inclusion of AATCC, ASTM, CGSB, and ISO test methods provides broad reference information.4.4 Consult specific ASTM textile fabric, apparel and home furnishing performance specifications for evaluation criteria.4.4.1 A listing of all ASTM textile performance specifications may be found in Volumes, 07.01 and 07.02 of the Annual Book of ASTM Standards. These textile specifications are appropriate for apparel or textile products that have not been wet processed or dyed after the product was sewn into its final form.4.5 The National Standard of Canada—Care Labelling of Textiles (CAN/CGSB-86 1-2003) includes performance criteria that is used in the evaluation of care claims, including written words or symbols, identified on garments or textile products that are offered for sale in Canada (see Table 1 and Table 2.)(A) ISO symbols adapted from ISO 3758:2012(E), with the permission of ANSI on behalf of ISO. ©ISO 2012–All rights reserved.1.1 This guide lists general home laundering and commercial drycleaning textile care procedures and the associated ASTM (American Society for Testing and Materials), AATCC (American Association of Textile Chemists and Colorists), CGSB (Canadian General Standards Board), and ISO (International Organization for Standardization) standards available for the testing and evaluation of textile products.1.2 This guide identifies the national and international textile and apparel test methods available to manufacturers, retailers, importers, testing organizations and other related parties.1.3 This guide provides a list of test methods that can be used by the reader to evaluate the properties of textiles and apparel during refurbishing, textile and apparel care instructions; and, textile and apparel care labels.1.4 This guide is not intended to be used in the establishment of performance criteria, but as a guide for product development and purchasing contracts. The country of Canada, however, has some performance criteria cited in The National Standard of Canada–Care Labelling of Textiles in CAN/CGSB–86.1-2003. See Table 1.(A) In addition to the properties of colourfastness, dimensional stability, effect of retained bleaching agent whether or not included in detergent and maximum safe ironing temperature, use of this care symbol system signifies that as a result of the restorative treatment, there shall be no appreciable change in the appearance of the textile product. For additional information on performance specifications and recommended test methods for the assessment of appearance changes, refer to CAN/CGSB-86.1-2003.1.5 This guide is applicable to textile and apparel articles; excluding upholstery fabrics, mattresses, carpet, leather, fur, and yarns.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 and health practices and determine the applicability of regulatory limitations prior to use.

定价： 590元 / 折扣价： 502 元 加购物车

This practice specifies the basic requirements, procedures, and practices for operating aerospace cleanrooms and controlled environments and the precautions associated with the facility and equipment used. This practice covers the requirements for operational systems, appropriate cleanroom clothing, authorized work personnel, stationary equipments, materials and mobile equipments, proper cleanroom operations, correct cleaning methods, and critical surfaces.1.1 This practice specifies basic requirements, procedures, and practices for operating aerospace cleanrooms and controlled environments and precautions associated with the facility and equipment used.1.2 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.1.3 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： 646元 / 折扣价： 550 元 加购物车

5.1 This index test method indicates a unvegetated RECP’s ability to reduce rainsplash-induced erosion under bench-scale conditions. This test method may also assist in identifying physical attributes of RECPs that contribute to their erosion-control performance.5.2 This test method is bench-scale and therefore, appropriate as an index test for initial indication of product performance, for general comparison of unvegetated RECP capabilities, and for product quality assurance/conformance testing. The results of this test are not indicative of an RECP’s actual field performance.NOTE 2: The quality of the result produced by this standard 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/sampling/inspections/etc. Users of this standard are cautioned that compliance with Practice D3740 does not itself assure reliable results. Reliable results depend on many factors; Practice D3740 provides a means of evaluating some of those factors.1.1 This index test method establishes the guidelines, requirements and procedures for evaluating the ability of unvegetated rolled erosion control products (RECPs) to protect soils from simulated rainfall (rain splash) and minimal runoff induced erosion. The critical element of this protection is the ability of the unvegetated RECP to absorb the impact force of raindrops, thereby reducing soil particle loosening through “splash” mechanisms, and limiting the ability of runoff to carry the loosened soil particles.1.2 This index test method utilizes bench-scale testing procedures and is not indicative of unvegetated RECP performance in conditions typically found in the field.NOTE 1: The values obtained with this bench scale procedure are for initial performance indication, general product comparison and conformance purposes only. These values should not be used in estimating RECP soil protection in actual field use with such calculations as the Universal Soil Loss Equation (USLE) or Revised Universal Soil Loss Equation (RUSLE) without verification from qualified, large-scale tests.1.3 This index test is not intended to replace full-scale simulation or field testing in acquisition of performance values that are required in the design of erosion control measures utilizing unvegetated RECPs.1.4 The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard.1.5 All observed and calculated values shall conform to the guidelines for significant digits and rounding established in Practice D6026, unless superseded by this standard.1.5.1 The procedures used to specify how data are collected/recorded or calculated in this standard are regarded as the industry standard. In addition, they are representative of the significant digits that generally should be retained. The procedures used do not consider material variation, purpose for obtaining the data, special purpose studies, or any considerations for the user’s objectives, and it is common practice to increase or reduce significant digits of reported data to be commensurate with these considerations. It is beyond the scope of this index test method to consider significant digits used in analytical methods for engineering design.1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use and may involve use of hazardous materials, equipment, and operations. 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. Also, the user must comply with prevalent regulatory codes, such as OSHA (Occupational Health and Safety Administration) guidelines, while using the index test method.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： 0元 / 折扣价： 0 元

1. Scope 1.1 General This Standard establishes limits and methods of measurement of the immunity of radio and television broadcasting receivers and certain associated equipment to degradation of performance due to electromagnetic disturbances. 1.2

定价： 865元 / 折扣价： 736 元

4.1 This practice requires that seating, upholstery, and padding materials used for vehicles associated with amusement rides and devices exhibit adequate smoldering ignition properties.4.1.1 Noncombustible materials are permitted to be used as seating, upholstery, and padding materials, and do not require testing for smoldering ignition.4.2 The structural components or framing associated with a vehicle or ride are not considered seating, upholstery, or padding materials.4.3 Annex A1 provides an optional open flame test suitable for seat padding materials.4.4 Appendix X1 provides non-mandatory guidance for conducting an analysis of fire scenarios associated with the operation of vehicles associated with amusement rides and devices. The conduction of a fire hazard analysis is not a requirement of this practice. The purpose of Appendix X1 is to provide manufacturers, owners, and operators with criteria and references for fire properties of materials used in vehicles either following construction or major modifications of an amusement ride or device.4.5 This practice does not address the probability of occurrence of a hazardous event in any fire scenario associated with amusement rides or devices. Thus, this practice does not address the potential risk associated with any fire scenario. Practice F2291-21 includes general requirement to assess and mitigate hazards for all rides and devices.4.6 The requirements in this practice are not intended to supersede any additional or alternate requirements provided by the authority having jurisdiction.1.1 This practice describes the required smoldering ignition fire properties for seating, upholstery, and padding materials used for vehicles associated with amusement rides and devices.1.2 This practice includes an annex with an example of an optional open flame test method for padding materials.1.3 This practice also contains a non-mandatory appendix with optional guidance for the procedure to follow in the event that an optional fire hazard analysis is to be conducted for vehicles used on amusement rides and devices.1.3.1 In the event that such a fire hazard analysis is to be conducted, it needs to include considerations related to heat release, smoldering, and flaming ignition, flame spread and smoke release.1.3.2 The appendix contains specific recommendations of standardized fire test methods that are suitable (but not required) for determining material properties related to heat release rates, smoldering, and flaming ignition, flammability, and smoke release for materials.1.4 This practice is not a fire test method.1.5 This practice does not require the conduction of a fire hazard analysis.1.6 This practice does not address the use of active fire protection measures, such as fire sprinklers, or smoke, fire, or heat detectors.1.7 This practice does not address the probability of any fire scenario associated with amusement rides or devices resulting in a hazardous event. Thus, this practice does not address the potential risk associated with any fire scenario. Practice F2291-21 includes general requirement to assess and mitigate hazards for all rides and devices.1.8 This practice shall not apply to:1.8.1 Materials specified for amusement rides or devices other than those associated specifically with the ride vehicle assembly.1.8.2 Materials used for the construction of facilities.1.8.3 Fluids and lubricants.1.8.4 Vehicles used on water slides or other aquatic devices.1.9 The values stated in SI units, see IEEE/ASTM SI-10-16, are to be regarded as standard. The values given in parentheses, if any, after SI units are provided for information only and are not considered standard.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： 590元 / 折扣价： 502 元 加购物车

5.1 This practice provides a standard approach to measuring particle deposition, or fallout, in cleanrooms and other controlled environments. It is based on the use of a witness surface to collect particles that deposit from the surrounding environment and subsequently sizing and counting the particles by conventional methods. Several options are introduced, with limitations and guidelines for selecting the best choice for the intended application.5.2 This practice is applicable across numerous industries including aerospace, microelectronics, and pharmaceuticals.1.1 This practice is intended to assist in the selection, preparation, exposure, and analysis of witness surfaces for the purpose of characterizing particle deposition rates in cleanrooms and associated controlled environments, particularly for aerospace applications.1.2 Requirements may be defined in terms of particle size distribution and count, percent area coverage, or product performance criteria such as optical transmission or scatter. Several choices for witness surfaces are provided.1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this 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： 590元 / 折扣价： 502 元 加购物车