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Standard Test Methods for Air Permeability of Asbestos Fibers
STANDARD published on 26.6.1998
Designation standards: ASTM D2752-88(1997)
Note: WITHDRAWN
Publication date standards: 26.6.1998
SKU: NS-21386
The number of pages: 9
Approximate weight : 27 g (0.06 lbs)
Country: American technical standard
Category: Technical standards ASTM
Keywords:
Airflow resistance, Air permeability, Asbestos-cement products-asbestos fiber, Degree of openness/fiberization, Dyckerhoff apparatus, Permeability, Rapid surface area, Surface analysis, degree of openness/fiberization-milled asbestos fiber, by air, permeability instruments, test
1. Scope | ||||||||||
1.1 These test methods cover the measurement of the relative degree of openness or degree of fiberization of milled asbestos fiber by air permeability instruments. 1.2 Method A is the recommended procedure and describes a determination by means of the Rapid Surface Area apparatus. This test method is limited to fibers with an effective surface area in the range from 10 to 250dm /g (490 to 12 000 ft /lb). 1.3 Method B is an alternative procedure and covers the use of the Dyckerhoff apparatus. This test method is limited to fibers within the range from 10 to 600 Dyckerhoff seconds. 1.4 Only those asbestos specimens which are of similar specific gravities will bear strict comparison by these air permeability methods since differences in density result in specimens being tested under different conditions of porosity. 1.5 Samples containing excessive quantities of nonfibrous particles or contaminants will not give reliable or meaningful results. 1.6 The values stated in SI units are to be regarded as the standard. The inch-pound units in parentheses are provided for information only. 1.7 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. Specific caution statements are given in 5.2. |
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2. Referenced Documents | ||||||||||
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