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Standard Practice for Sampling and Preparation of Wet Blue and Wet White for Physical and Chemical Tests
NORMA vydaná dňa 1.9.2021
Označenie normy: ASTM D6659-16(2021)
Dátum vydania normy: 1.9.2021
Kód tovaru: NS-1038053
Počet strán: 3
Približná hmotnosť: 9 g (0.02 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Zkušební podmínky a postupy všeobecně
Zpracování a pomocné materiály v kožedělném průmyslu
Keywords:
blue stock, chemical tests, lot, physical tests, sampling, unit, Wet Blue, Wet White,, ICS Number Code 19.020 (Test conditions and procedures in general),59.140.10 (Processes and auxiliary materials)
Significance and Use | ||
4.1?The sampling procedures described in this practice have been designed to ensure random sampling of Wet Blue and Wet White for physical and chemical tests. Wet Blue and Wet White are natural products and as such are subject to extensive variability. The physical and chemical properties vary considerably depending on location on the hide, side, or skin from which the test sample is taken. Random sampling of specimens from a predefined location and orientation minimizes test bias and variability. This practice defines these parameters. |
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1. Scope | ||
1.1?This practice covers the sampling and preparation of Wet Blue and Wet White for physical and chemical tests. The product is grouped into lots that are randomly sampled in such a manner as to produce a representative sample of the lot. This sample may be used to determine compliance of the lot with applicable specification requirements, and on the basis of results, the lot may be accepted or rejected in its entirety. 1.2?The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.4?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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