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Significance and Use
5.1 The value of compression (as described in ) is proportional to the bulk under moderate pressure.
5.2 The value of percent recovery is a measure of springiness or bulk fiber resilience.
1.1 This test method covers the determination of the bulking factor of spinning grade fiber. These include grade 4A and longer.
1.2 Results obtained on other grades may be considered as an evaluation of their bulk fiber resilience.
1.3 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.
1.4 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.”
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. For specific hazard warning, see .
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D2590 Test Method for Sampling Chrysotile Asbestos
D2946 Terminology for Asbestos and Asbestos-Cement Products
D3879 Test Method for Sampling Amphibole Asbestos
E177 Practice for Use of the Terms Precision and Bias in ASTM Test Methods
ICS Number Code 91.100.40 (Products in fibre-reinforced cement)
UNSPSC Code 11151515(Asbestos fibers)
ASTM C1123 / C1123M-90(2015), Standard Test Method for Compressibility and Recovery of Asbestos, ASTM International, West Conshohocken, PA, 2015, www.astm.orgBack to Top