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Standard Practice for Calculation of (Non-Mineral) Combined Tanning Agents and Degree of Tannage
NORMA vydaná dňa 1.12.2020
Označenie normy: ASTM D6020-00(2020)
Poznámka: NEPLATNÁ
Dátum vydania normy: 1.12.2020
Kód tovaru: NS-1013137
Počet strán: 2
Približná hmotnosť: 6 g (0.01 libier)
Krajina: Americká technická norma
Kategória: 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 | ||||||||
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3.1This 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 | ||||||||
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1.1This 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. 1.2This 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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