GB/T 12149-1989
Analysis of water used in boiler and cooling system--Determination of silica--Molybdenum blue colorimetry (English Version)

Standard No.

GB/T 12149-1989

Language

Chinese, Available in English version

Release Date

1989

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Status

Be replaced 2008-02

Replace By

GB/T 12149-2007

Latest

GB/T 12149-2017

Scope

This standard specifies the determination method of silicon when the thermal power plant conducts on-site control of chemical make-up water, feed water, boiler water, steam, condensate, etc. This standard applies to boiler water analysis. The determination range of silicon is: 10-500 μg SiO2 per liter and 0.5-20 mg SiO2 per liter.

GB/T 12149-1989 history

• 2017 GB/T 12149-2017 Determination of silica in water for industrial circulating cooling system and boiler
• 2007 GB/T 12149-2007 Water for industrial circulating cooling system and boiler.Dermination of silica
• 1989 GB/T 12149-1989 Analysis of water used in boiler and cooling system--Determination of silica--Molybdenum blue colorimetry