GB/T 14640-2008
Water used in industrial circulating cooling system and boiler.Determination of potassium and sodium (English Version)

Standard No.

GB/T 14640-2008

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

Status

Be replaced 2018-05

Replace By

GB/T 14640-2017

Latest

GB/T 14640-2017

Replace

GB/T 14641-1993 GB/T 14640-1993 GB/T 12156-1989 GB/T 10539-1989

Scope

This standard specifies the determination methods for potassium and sodium in industrial circulating cooling water and boiler water. The atomic absorption spectrometry in this standard is applicable to the determination of potassium content 0.3mg/L～50mg/L and sodium content 5mg/L～500mg/L, and the static method is applicable to the determination of sodium content greater than 0.23mg/L. This standard is also applicable to the determination of sodium and potassium in various industrial water, boiler water, raw water and domestic water.

GB/T 14640-2008 Referenced Document

• GB 6819 Dissolved acetylene
• GB/T 4470 Analytical spectroscopic methods-Flame emission,atomic absorption and atomic fluorescence-Vocabulary
• GB/T 603 Preparation of preparations and products used in chemical reagent test methods*， 2023-08-06 Update
• GB/T 6682 Water for analytical laboratory use.Specification and test methods*， 2008-05-15 Update

GB/T 14640-2008 history

• 2017 GB/T 14640-2017 Determination of potassium and sodium in water for industrial circulating cooling system and boiler
• 2008 GB/T 14640-2008 Water used in industrial circulating cooling system and boiler.Determination of potassium and sodium
• 1993 GB/T 14640-1993 Industrial circulating cooling water--Determination of potassium--Atomic absorption spectrometry
• 1989 GB/T 10539-1989 Analytical methods of boiler water and cooling water--Determination of potassium--Flame photometry

GB/T 14640-2008 Water used in industrial circulating cooling system and boiler.Determination of potassium and sodium has been changed from GB/T 14641-1993 Industrial circulating cooling water--Determination of sodium--Atomic absorption spectrometry.

GB/T 14640-2008 Water used in industrial circulating cooling system and boiler.Determination of potassium and sodium has been changed from GB/T 12156-1989 Analysis of water used in boiler and cooling system--Determination for sodium--Static method.

GB/T 14640-2008 Water used in industrial circulating cooling system and boiler.Determination of potassium and sodium has been changed from GB/T 10539-1989 Analytical methods of boiler water and cooling water--Determination of potassium--Flame photometry.