GB/T 14849.4-2008: Methods for chemical analysis of silicon metal -- Part 4: Determination of elements content Inductively coupled plasma atomic emission spectrometric method

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Scope

This Part species the determination method for iron, aluminum, calcium, titanium,
manganese, and nickel content in silicon metal.
This Part applies to the determination of iron, aluminum, calcium, titanium, manganese,
and nickel content in silicon metal. The determination range is shown in Table 1.
Table 1
Element Mass fraction /% Element Mass fraction /%
Iron 0.020-1.00 Nickel 0.0050-0.50
Aluminum 0.020-0.50 Manganese 0.0050-0.50
Calcium 0.020-1.00 Titanium 0.0050-0.10
2  Method summary
The specimen is decomposed with hydrofluoric acid and nitric acid. Perchloric acid’s
smoking removes silicon, fluorine, etc. And the residue is dissolved with hydrochloric acid.
Test solution is introduced into plasma–spectrometer. Under selected optimal
determination conditions, MEASURE the content of each element in the test solution.

Basic Data

Standard ID	GB/T 14849.4-2008 (GB/T14849.4-2008)
Description (Translated English)	Methods for chemical analysis of silicon metal -- Part 4: Determination of elements content Inductively coupled plasma atomic emission spectrometric method
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	H17
Classification of International Standard	77.120.10
Word Count Estimation	7,755
Date of Issue	2008-06-09
Date of Implementation	2008-12-01
Regulation (derived from)	National Standard Approval Announcement 2008 No.9 (Total No.122); National Standard Approval Announcement 2014 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 industrial silicon iron, determination of nickel content, aluminum, calcium, titanium, manganese. This section applies to industrial silicon iron, Determination of nickel content, aluminum, calcium, titanium, manganese.