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Standard Practice for Calculation of (Non-Mineral) Combined Tanning Agents and Degree of Tannage
Přeložit název
NORMA vydána dne 1.12.2020
Označení normy: ASTM D6020-00(2020)
Datum vydání normy: 1.12.2020
Kód zboží: NS-1013137
Počet stran: 2
Přibližná hmotnost: 6 g (0.01 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
Keywords:
combined tannins, degree of tannage, leather, tannin analysis, vegetable-tanned leather ,, ICS Number Code 59.140.10 (Processes and auxiliary materials)
Significance and Use | ||||||||
3.1?This practice may be used to determine non-protein or non-nitrogen containing organic matter in leather which is not extractable with water or hexane. Examples would be vegetable tannins and acrylic lubricants. |
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1. Scope | ||||||||
1.1?This practice covers the determination of the combined tannin and nonextractable organic resins and the degree of tannage of all types of vegetable-tanned leather and leather with organic retannages. This practice does not apply to wet blue. 1.2?This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. |
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2. Referenced Documents | ||||||||
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