GB/T 11446.7-2013: Test method for trace anion in electronic grade water by ion chromatography

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Scope

This Part of GB/T 11446 specifies ion chromatography test method, for the trace
amounts of fluoride ion (F-), chloride ion (Cl-), nitrite ion (NO2-), bromide ion (Br-),
nitrate ion (NO3-), phosphate ion (PO43-), sulfate ion (SO42-), in electronic grade
water.
This Part is applicable to the determination of trace amounts of fluoride ion,
chloride ion, nitrite ion, bromide ion, nitrate ion, phosphate ion, sulfate ion, in
electronic grade water. The detection limit is 0.7 μg/L, 0.8 μg/L, 1 μg/L, 1 μg/L,
1 μg/L, 1 μg/L, 1 μg/L, respectively.

Basic Data

Standard ID	GB/T 11446.7-2013 (GB/T11446.7-2013)
Description (Translated English)	Test method for trace anion in electronic grade water by ion chromatography
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	L90
Classification of International Standard	31.030
Word Count Estimation	8,835
Older Standard (superseded by this standard)	GB/T 11446.7-1997
Quoted Standard	GB/T 11446.1-2013; GB/T 11446.3-2013
Regulation (derived from)	National Standards Bulletin 2013 No. 27
Issuing agency(ies)	General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary	This standard specifies the electronic level of trace fluoride ions (F ��), chloride ion (CI ��), nitrite (NO2 ��), bromide (Br ��), nitrate ion (NO3 ��), phosphate ion (PO3/4 ��), sulfate ion (SO4/2 ��) by ion chromatography test method. This standard applies t