GB/T 223.26-2008: Iron, steel and alloy -- Determination of molybdenum content -- The thiocyanate spectrophotometric method

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Scope

This part of GB/T 223 specifies the determination of molybdenum by
thiocyanate direct spectrophotometry and thiocyanate-butyl acetate extraction
spectrophotometry.
The method-1 of this part is applicable to the determination of molybdenum
content of 0.10%~2.00% (mass fraction) in medium-and-low alloy steel, high-
temperature alloy steel, precision alloy. The method-2 of this part is applicable
to the determination of molybdenum content of 0.0025% ~ 0.20% (mass fraction)
in pig iron, carbon steel, alloy steel.

Basic Data

Standard ID	GB/T 223.26-2008 (GB/T223.26-2008)
Description (Translated English)	Iron, steel and alloy -- Determination of molybdenum content -- The thiocyanate spectrophotometric method
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	H11
Classification of International Standard	77.080.01��
Word Count Estimation	11,142
Date of Issue	2008-05-13
Date of Implementation	2008-11-01
Older Standard (superseded by this standard)	GB/T 223.26-1989; GB/T 223.27-1994
Quoted Standard	GB/T 6379.1; GB/T 6379.2; GB/T 20066
Regulation (derived from)	National Standard Approval Announcement 2008 No.8 (Total No.121)
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 method and with thiocyanate directly with thiocyanate-butyl acetate extraction and spectrophotometric determination of molybdenum content. This section applies to a method of low -alloy steel, high temperature alloy and precision alloy for the determination of the mass fraction of 0. 10% to 2. 00 % molybdenum content, This section applies to method two pig iron, carbon steel, alloy steel mass fraction of 0. 0025% to 0. 20% molybdenum content was measured.