GB/T 11896-1989: [GB 11896-1989] Water quality. Determination of chloride. Silver nitrate titration method

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Scope

This Standard specifies using the silver nitrate titration method to determine the
concentration of chloride in water.
This Standard is applicable to the determination of chloride in the natural water; it is
also applicable to the highly mineralized water that has been diluted, such as salt water,
seawater, etc.; as well as applicable to the domestic sewage and industrial wastewater
that has removed the interference through the pretreatment.
This Standard is applicable to the chloride with concentration of 10~500mg/L. The
water sample above such range can expand its determination range after dilution.
The bromide, iodide and cyanide can be titrated together with chloride. When the
orthophosphate and polyphosphate separately exceed 250mg/L and 25mg/L, they
have interference. When iron content exceeds 10 mg/L, the end-point is not obvious.

Basic Data

Standard ID	GB/T 11896-1989 (GB/T11896-1989)
Description (Translated English)	[GB 11896-1989] Water quality. Determination of chloride. Silver nitrate titration method
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	Z16
Classification of International Standard	13.060.01
Word Count Estimation	5,530
Date of Issue	11/3/1989
Date of Implementation	7/1/1990
Issuing agency(ies)	State Bureau of Technical Supervision
Summary	This standard specifies the chloride concentration in water of silver nitrate titration method. This standard applies to the determination of chloride in natural water, but also to go through the proper dilution of high salinity water, such as brackish water, sea water, as well as pre-treated to remove interferences sewage or industrial waste. This standard applies to the concentration range of 10 ~ 500mg/L of chloride. After the measurement range can expand its range of water samples above this dilution.