STM PDF

Tobacco and tobacco products - Determination of ammonia - Method using ion chromatographic analysis. Original standard ISO 21045-2018 in PDF full version. Additional info + preview on request

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Silk - Test method for determining the size of silk yarns. Original standard ISO 21046-2018 in PDF full version. Additional info + preview on request

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Plastics - Epoxy resins - Determination of 1,2-glycol content. Original standard ISO 21048-2014 in PDF full version. Additional info + preview on request

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Pumps - Shaft sealing systems for centrifugal and rotary pumps. Original standard ISO 21049-2004 in PDF full version. Additional info + preview on request

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Construction and installation of ductile iron pipeline system. Original standard ISO 21051-2020 in PDF full version. Additional info + preview on request

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Restrained joint systems for ductile iron pipelines - Calculation rules for lengths to be restrained. Original standard ISO 21052-2021 in PDF full version. Additional info + preview on request

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