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Association Francaise de Normalisation, pH ??? ?? ??

Korean Agency for Technology and Standards (KATS), pH ??? ?? ??

Military Standards (MIL-STD), pH ??? ?? ??

RO-ASRO, pH ??? ?? ??

KR-KS, pH ??? ?? ??

Japanese Industrial Standards Committee (JISC), pH ??? ?? ??

German Institute for Standardization, pH ??? ?? ??

American Society for Testing and Materials (ASTM), pH ??? ?? ??

SCC, pH ??? ?? ??

National Metrological Technical Specifications of the People's Republic of China, pH ??? ?? ??

British Standards Institution (BSI), pH ??? ?? ??

YU-JUS, pH ??? ?? ??

The American Road & Transportation Builders Association, pH ??? ?? ??

RU-GOST R, pH ??? ?? ??

International Organization for Standardization (ISO), pH ??? ?? ??





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