ASTM-D7477 Standard Test Method for Determining the Area Stability of Wet Blue Submersed in Boiling Water

ASTM-D7477 - 2016 R21 EDITION - CURRENT
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Standard Test Method for Determining the Area Stability of Wet Blue Submersed in Boiling Water
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Scope

1.1 This test method provides a standard procedure for determination of the dimensional stability or area shrinkage of a specimen of wet blue that is submersed in boiling water for a specified time period. This test method is applicable to all types of wet blue.

1.2 The values given in SI units are to be regarded as the standard. The inch-pound units given in parentheses are 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.

Significance and Use

Determination of the hydro-thermal area stability of wet blue provides information concerning the efficacy of the tanning process as well as the adequacy of the wet blue for intended end use applications where area stability is a particular requirement. Relative area stability of chrome-tanned leather is a requirement for many applications such as bookbinding, shoe and boot components, upholstery, seals and gaskets, etc.

This test method is suitable for use in development work and process control in the tannery and for specification testing of wet blue for domestic and international commercial purposes.

Keywords

area change; area stability; boil test; shrinkage; wet blue; ICS Number Code 59.140.30 (Leather and furs)

To find similar documents by ASTM Volume:

15.04 (Soaps and Other Detergents; Polishes; Leather; Resilient Floor Coverings)

To find similar documents by classification:

59.140.30 (Leather and furs)

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Document Number

ASTM-D7477-16R21

Revision Level

2016 R21 EDITION

Status

Current

Modification Type

New

Publication Date

Sept. 1, 2021

Document Type

Test Method

Page Count

4 pages

Committee Number

D31.02