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ASTM C 1121/C1121M : 2004 : R2015

Current
Current

The latest, up-to-date edition.

Standard Test Method for Turner and Newall (T and N) Wet-Length Classification of Asbestos (Withdrawn 2021)
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

20-07-2015

CONTAINED IN VOL. 04.05, 2015 Defines the operation of the Turner and Newall (T and N) wet sieving classifier for asbestos,2 and a procedure for the determination of fiber length distribution and fines (defined in Terminology D 2946) content of milled asbestos fiber (-74 (mu)m [200 mesh]) sieve described in Specification E11.

1.1This test method covers the operation of the Turner and Newall (T and N) wet sieving classifier for asbestos,2 and a procedure for the determination of fiber length distribution and fines (defined in Terminology D2946) content of milled asbestos fiber (−74 μm [200 mesh]) sieve described in Specification E11.

1.2For purposes of estimating length distribution, the test is limited to samples free from excessive quantities of non-fibrous particles or contaminants. Quantities exceeding 0.05 g retained in any given length fractions are considered excessive.

1.3For comparisons between different fiber grades, only those specimens which have approximately the same degree of fiberization as determined by Test Methods D2752/D2752M will give completely meaningful results.

1.4This test method is not applicable to ultrafine grades of asbestos powders which contain little or no fibers retained on a 74-μm [200 mesh] sieve. This method is restricted to Quebec Standard3 grades 4A to 7D inclusive as determined by Test Method D3639/D3639M.

Note 1:This is an alternative procedure to Test Method D2589/D2589M.

1.5The 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.

1.6Warning—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.”4

1.7This 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 a specific hazard statement, see 1.6.

Committee
C 17
DevelopmentNote
Supersedes ASTM C 1121. (04/2010)
DocumentType
Test Method
Pages
5
ProductNote
Reconfirmed 2015
PublisherName
American Society for Testing and Materials
Status
Current
Supersedes

ASTM E 177 : 1990 : REV A : R1996 Standard Practice for Use of the Terms Precision and Bias in ASTM Test Methods
ASTM E 177 : 2014 : REDLINE Standard Practice for Use of the Terms Precision and Bias in ASTM Test Methods
ASTM D 3879 : 1991 : R2004 : EDT 1 Standard Test Method for Sampling Amphibole Asbestos (Withdrawn 2009)
ASTM D 2946 : 2001 Standard Terminology for Asbestos and Asbestos-Cement Products
ASTM D 2752/D2752M : 1988 : R2011 : EDT 1 Standard Test Methods for Air Permeability of Asbestos Fibers
ASTM D 3879 : 1991 : R2004 Standard Test Method for Sampling Amphibole Asbestos
ASTM D 3639/D3639M : 1992 : R2011 : EDT 1 Standard Test Method for Classification of Asbestos by Quebec Standard Test
ASTM D 2590/D2590M : 1998 : R2011 : EDT 1 Standard Test Method for Sampling Chrysotile Asbestos
ASTM D 2946 : 2001 : R2005 Standard Terminology for Asbestos and Asbestos-Cement Products
ASTM D 2946 : 2001 : R2010 Standard Terminology for Asbestos and Asbestos-Cement Products
ASTM D 2589/D2589M : 1988 : R2011 : EDT 1 Standard Test Method for McNett Wet Classification of Dual Asbestos Fiber
ASTM D 3879 : 1991 : R1999 Standard Test Method for Sampling Amphibole Asbestos
ASTM D 2946 : 1998 Standard Terminology for Asbestos and Asbestos-Cement Products
ASTM E 11 : 2017 : REDLINE Standard Specification for Woven Wire Test Sieve Cloth and Test Sieves
ASTM D 2946 : 2001 : R2018 Standard Terminology for Asbestos and Asbestos–Cement Products (Withdrawn 2022)

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