ASTM-D7816 Historical Revision Information
Standard Test Method for Enumeration of Halophilic and Proteolytic Bacteria in Raceway Brine, Brine-Cured Hides and Skins

ASTM-D7816 - 2012 R21 EDITION - SUPERSEDED
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Standard Test Method for Enumeration of Halophilic and Proteolytic Bacteria in Raceway Brine, Brine-Cured Hides and Skins
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Scope

1.1 This test method covers the enumeration of bacteria that can tolerate high salt concentrations or can hydrolyze protein/collagen, or both. This test method is applicable to raceway brine, brine-cured hides and skins, and pre-charge raceway liquor.

1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

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

4.1 This test method enumerates salt tolerant (halophilic) bacteria, and proteolytic bacteria that are also salt tolerant. Under the conditions of this test method those bacteria are equated as halophilic organisms. Salt tolerant proteolytic bacteria have been known to cause damage to hides and skins in raceway brine.

Keywords

bacteria; brine; collagen; halophilic; hides; proteolytic; raceway; salt tolerant; skins; ICS Number Code 07.100.99 (Other standards related to microbiology)

To find similar documents by ASTM Volume:

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

To find similar documents by classification:

07.100.99 (Other standards related to microbiology)

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Document Number

ASTM-D7816-12R21

Revision Level

2012 R21 EDITION

Status

Superseded

Modification Type

New

Publication Date

Sept. 1, 2021

Document Type

Test Method

Page Count

7 pages

Committee Number

D31.02