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Description of ASTM-F903 2024ASTM F903-24Active Standard: Standard Test Method for Resistance of Materials Used in Protective Clothing to Penetration by LiquidsASTM F903Scope 1.1 This test method is used to test specimens of protective clothing materials, assemblies such as seams and closures, or interfaces used in the construction of protective clothing. The resistance to visible penetration of the test liquid is determined with the liquid in continuous contact with the normally outside (exterior) surface of the test specimen. 1.2 This test method includes different procedures for maintaining the liquid in contact with the test specimen in terms of the length of exposure and the pressure applied. Suggestions are provided for how to select an appropriate procedure for liquid contact. 1.3 In some cases, significant amounts of hazardous materials will permeate specimens that pass the penetration tests. For more sensitive analyses, use either Test Method F739 or F1383 to determine permeation. 1.4 This test method does not address penetration of vapors through protective clothing materials. 1.5 This test method is not applicable to non-planar protective clothing materials, interfaces, or assemblies such as the fingertips or crotch areas of gloves, which are possible failure points. 1.6 This test method does not address the liquid penetration resistance of full protective clothing items or ensembles. Use Test Method F1359/F1359M for this purpose. 1.7 The values as stated in inch-pound units are to be regarded as the standard. The values in parentheses are for information only. Note 1: Past testing allowed different screen designs to be used without sufficient documentation to allow duplication. The results with recommended screens and with documentation to allow duplication may be different from previous results. 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. Specific hazards are given in Section 7. 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. Keywords barrier; chemical liquid barrier; closure; liquid barrier; penetration; protective clothing; seam; ICS Code ICS Number Code 13.340.10 (Protective clothing) DOI: 10.1520/F0903-24 The following editions for this book are also available...
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About ASTMASTM International, formerly known as the American Society for Testing and Materials (ASTM), is a globally recognized leader in the development and delivery of international voluntary consensus standards. Today, some 12,000 ASTM standards are used around the world to improve product quality, enhance safety, facilitate market access and trade, and build consumer confidence. ASTM’s leadership in international standards development is driven by the contributions of its members: more than 30,000 of the world’s top technical experts and business professionals representing 150 countries. Working in an open and transparent process and using ASTM’s advanced electronic infrastructure, ASTM members deliver the test methods, specifications, guides, and practices that support industries and governments worldwide. |
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