This standard specifies the technical requirements, inspection rules, inspection methods, signs, packaging, transportation and storage of coal-based granular activated carbon for water purification. This standard applies to coal-based granular activated carbon used for dechlorination and degreasing of industrial water, deep purification of drinking water and sewage.
GB/T 7701.4-1997 history
2008GB/T 7701.2-2008 Granlar activated carbon from coal.Granular activated carbon from coal for water treatment
1997GB/T 7701.4-1997 Granular activated carbon from coal for the treatment of water
GB/T 7701.4-1997 Granular activated carbon from coal for the treatment of water was changed to GB/T 7701.2-2008 Granlar activated carbon from coal.Granular activated carbon from coal for water treatment.