ASTM E 11Occupational Health Guideline for 1,1,2-Trichloro-1,2,2-Trifluoroethane.USDHHS-NIOSH Publication No.81-123Standard Methods for the Examination of Water and Wastewater. APHA, AWWA, and WEE. Washington, D.C.(21st ed.,2005)
被代替标准
ANSI/AWWA B200-2003
适用范围
This standard describes sodium chloride in the form of rock, vacuum-granulated, compressed vacuum-granulated,solar, or compressed solar salt for use in the recharging of cation-exchange materials in water supply service for softening municipal and industrial water supplies. Additionally, sodium chloride is used in the recharging of anion-exchange materials for nitrate removal or dealkalization of municipal and industrial supplies.