ASTM D1912-00(2016)

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: D1912 − 00 (Reapproved 2010) D1912 − 00 (Reapproved 2016)
Standard Test Method for
Cold-Crack Resistance of Upholstery Leather
This standard is issued under the fixed designation D1912; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This test method covers the measurement of the cold-crack resistance on all types of upholstery leathers, but especially in
the field of automotive upholstery. This test method does not apply to wet blue.
1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are provided for
information only.
1.3 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.
2. Referenced Documents
2.1 ASTM Adjuncts:
Greuel rotary cold-fold test machine (14 drawings, 1 list)
3. Summary of Test Method
3.1 In this test method, the cold-crack resistance of upholstery leather is measured by means of a mechanically-applied pressure
to a cone-shaped specimen of leather after both the specimen and the pressure-device have been conditioned in a carefully
controlled cold cabinet. Both the specimen and the machine remain in the cold cabinet during testing.
4. Significance and Use
5 6 7
4.1 The results are reproducible and correlate with the cold impact test and also correlate with actual practice conditions. A
comparison of the significance of this test method with other test methods has also been made.
5. Apparatus
4,8
5.1 Greuel Rotary Cold-Fold Test Machine, as shown in Fig. 1 and consisting of two tangential knurled rollers driven by a
chain drive.
5.2 Steel Die or Other Shearing Device.
This test method is under the jurisdiction of ASTM Committee D31 on Leather and is the direct responsibility of Subcommittee D31.05 on Upholstery. This standard
was developed in cooperation with the American Leather Chemists Assn.
Current edition approved April 1, 2010Sept. 1, 2016. Published May 2010September 2016. Originally approved in 1961. Last previous edition approved in 20052010 as
E1
D1912–00 (2005)(2010). . DOI: 10.1520/D1912-00R10.10.1520/D1912-00R16.
Sometimes referred to as the Greuel Cold-Fold Test in Upholstery Group literature.
In the past, cold-crack resistance has been measured by various methods which were evaluated by the Upholstery Group Technical Committee in April 1957, and the
Cold-Fold Test was adopted as a standard test in the industry. The method has been adopted by the following groups:
The Upholstery Leather Group, Tanners’ Council of America.
Fisher Body Division of General Motors Corp., Specification No. 29.1, dated April 12, 1957.
Detailed drawings of this machine are available at a nominal cost from: ASTM International Headquarters. Order Adjunct No. ADJD1912. Original adjunct produced
in 1957.
Good reproducibility is evidenced by correlation tests conducted by the Upholstery Leather Group Technical Committee in April 1956 and reported by Fopma, R. J.,
“Study of Cold-Crack Test for Upholstery Leathers,” The Journal of the American Leather Chemists’ Association, Vol LIV, No. 4, April 1959, p. 194.
ALCA Test Method E42, Provisional, April 1953.
Upholstery Group Technical Committee, Tanners’ Council of America files, “Correlation of Cold-Fold versus Cold Impact Tests versus Actual Cushion Testing.”
The sole source of supply of the test machine known to the committee at this time is Aim Tool and Die, 14324 172nd St., Grand Haven, MI 49417. If you are aware
of alternative suppliers, please provide this information to ASTM Headquarters. Your comments will receive careful consideration at a meeting of the responsible technical
committee, which you may attend.
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D1912 − 00 (2016)
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