water hardness

water hardness, Total:13 items.

The international standard classification for "water hardness" includes: Water quality .

The Chinese standard classification for "water hardness" includes: .

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Professional Standard - Coal

• MT/T 206-1995 Determination method of hardness of coal-mine water
• MT/T 206-2011 Determination of Hardness of Coal Mine Water

RU-GOST R

• GOST 6055-1986 Water. Unit of hardness
• GOST 31865-2012 Water. Unit of hardness
• GOST R 52029-2003 Water. Unit of hardness
• GOST 31954-2012 Drinking water. Methods of hardness determination
• GOST R 52407-2005 Drinking water. Methods of hardness determination

RO-ASRO

• STAS 3026-1976 DRINKING WATER Determination of hardness

American Society for Testing and Materials (ASTM)

• ASTM D1126-96 Standard Test Method for Hardness in Water
• ASTM D1126-02 Standard Test Method for Hardness in Water
• ASTM D1126-02(2007)e1 Standard Test Method for Hardness in Water
• ASTM D1126-12 Standard Test Method for Hardness in Water

Spanish Association for Standardization (UNE)

• UNE 77040:2002 Water quality. Determination of the water hardness. Complexometric method with EDTA.

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