This standard specifies testing methods for anions (fluoride, chloride, nitrite, bromide, phosphate, nitrate, and sulfate) in ultrapure water. Notes: 1. This method is also applicable to testing anions in highly purified water other than ultrapure water.
JIS K 0556:1995 history
1995JIS K 0556:1995 Testing methods for determination of anions in highly purified water