GB/T 11446.5-2013: Test method for measuring trace metals in electronic grade water by atomic absorption spectrophotometry

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Scope

This Part of GB/T 11446 specifies the test method, for the determination of trace
metals copper, zinc, nickel, iron, lead, sodium, potassium, in electronic grade
water, by a flameless (or flame) atomic absorption spectrophotometer. Other
instruments, which have comparable sensitivity, such as inductively coupled
plasma/mass spectrometer (or inductively coupled plasma emission
spectrometer) can also be used, for measurement.
Flameless atomic absorption spectrophotometry is suitable for the
determination of trace metals, in EW-I ~ EW-III electronic grade water. The
detection limit (mass score) of the method shall be less than 1 x 10-9.
Flame atomic absorption spectrophotometry is suitable for the determination of
trace metals in EW-IV electronic grade water.

Basic Data

Standard ID	GB/T 11446.5-2013 (GB/T11446.5-2013)
Description (Translated English)	Test method for measuring trace metals in electronic grade water by atomic absorption spectrophotometry
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	L90
Classification of International Standard	31.030
Word Count Estimation	8,891
Older Standard (superseded by this standard)	GB/T 11446.5-1997
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 test method for electronic grade water trace metals copper, zinc, nickel, iron, lead, sodium and potassium-free flame (or flame) atomic absorption spectrophotometer. You can also use other instruments such as the considerable s