GB/T 6912-2008 (English Version) PDF

Standard No.: GB/T 6912-2008
Language: Chinese, Available in English version
Release Date: 2008
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 6912-2008
Replace: GB/T 6912.2-1986

Scope: This standard specifies the determination method of nitrite content in raw water, boiler water and cooling water. Molecular absorption spectrophotometry in this standard is applicable to the determination of nitrite content in raw water, boiler water and cooling water of 0 mg/L to 0.25 mg/L; ultraviolet spectrophotometry is applicable to the determination of nitrite in raw water, boiler water and cooling water Determination of nitrate content from 0 mg/L to 25 mg/L.

GB/T 6912-2008 Referenced Document

GB/T 602 Chemical reagent--Preparations of standard solutions for impurity
GB/T 6682 Water for analytical laboratory use.Specification and test methods*， 2008-05-15 Update

2008 GB/T 6912-2008 Analysis of water used in boiler and cooling system.Determination of nitrite
1986 GB/T 6912.2-1986 Methods for analysis of water for boiler and for cooling--The determination of nitrates and nitrites--Ultraviolet spectrophotometry for nitrites