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ISO 4648:1991
elevated temperature and humidity resistance
whether simultaneously or separately
This European Standard gives general guidelines and recommendations to ensure interworking between HBES devices made by different manufacturers
Such agreement is made between the manufacturer and the purchaser
Leather. Chemical tests for the determination of certain azo colorants in dyed leathers - Determination of certain aromatic amines derived from azo colorants Ingestion-build-48183 ISO 4648:1991What is ISO 172341 about? ISO 172341 is a series on leather. Leather is a strong, flexible and durable material obtained from the tanning, or chemical treatment, of animal skins and hides to prevent decay. ISO 172341 specifies a method for determining the use of certain azo colourants which can release certain aromatic amines. Who is ISO 172341 for? ISO 172341 on leather is useful for: Leather manufacturing industries Leather testing institution
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