ASTM-D7816 › Historical Revision Information
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Superseded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