GB/T 20125-2006: Low-alloy steel -- Determination of multi-element contents -- Inductively coupled plasma atomic emission spectrometric method

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Scope

This standard specifies the method for the determination of silicon, manganese,
phosphorus, nickel, chromium, molybdenum, copper, vanadium, cobalt, titanium,
aluminum, by inductively coupled plasma emission spectrometry.
This method is suitable for the determination of silicon, manganese, phosphorus, nickel,
chromium, molybdenum, copper, vanadium, cobalt, titanium, aluminum in carbon steel
and low alloy steel, which has an iron mass fraction greater than 92%. For the
determination range of multi-elements, refer to Table 1.
The silicon, titanium, aluminum, which is measured by this method, are acid-soluble
silicon, acid-soluble titanium, acid-soluble aluminum.
When even only one of the components in the steel exceeds the upper limit of the
content range in Table 1, this standard does not apply.
In steel, when the mass fraction of carbon and sulfur is greater than 1.0%, AND the
mass fraction of tungsten and niobium is greater than 0.10%, this standard is also not
applicable.

Basic Data

Standard ID	GB/T 20125-2006 (GB/T20125-2006)
Description (Translated English)	Low-alloy steel -- Determination of multi-element contents -- Inductively coupled plasma atomic emission spectrometric method
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	H11
Classification of International Standard	77.080.20
Word Count Estimation	16,131
Date of Issue	2006-03-02
Date of Implementation	2006-09-01
Quoted Standard	GB/T 20066-2006; GB/T 6379
Adopted Standard	JIS G1258-1989, MOD
Regulation (derived from)	China National Standard Approval Announcement 2006 No.3 (Total No.90)
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 determination of silicon by inductively coupled plasma atomic emission spectrometry, manganese, phosphorus, Nickel, Aluminum methods, titanium, vanadium, , cobalt chromium, molybdenum, copper. This method is suitable for the mass fraction of greater than 92% iron carbon steel, low alloy silicon, manganese, phosphorus, Nickel, chromium, molybdenum, copper, vanadium, Determination of aluminum content, cobalt, titanium. Multi-element determination of the scope of its contents are shown in Table 1. The method for the determination of silicon, titanium and aluminum as acid soluble silicon, acid-soluble titanium and Als. When the steel components even if there is only one component of content beyond the upper limit of the range in Table 1, this standard does not apply. Carbon steel, sulfur content greater than 1. 0%, tungsten, niobium content greater than 0. 10%, the standard does not apply. This standard specifies two alternative methods to determine the content of selected elements in the test solution, using an internal standard, and the other without using an internal standard.