GB/T 223.11-2008: Iron, steel and alloy -- Determination of chromium content -- Visual titration or potentiometric titration method

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Scope

This Part of GB/T 223 specifies the determination of chromium content with visual
titration or potentiometric titration method.
Method I of this Part is applicable to the determination of chromium content with
mass fraction 0.10%~35.00% in pig iron, carbon steel, alloy steel, high-temperature
alloy and precision alloy; method II of this Part is applicable to the determination of
chromium content with mass fraction 0.25%~35.00% in iron and steel.

Basic Data

Standard ID	GB/T 223.11-2008 (GB/T223.11-2008)
Description (Translated English)	Iron, steel and alloy -- Determination of chromium content -- Visual titration or potentiometric titration method
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	H11
Classification of International Standard	77.080.01
Word Count Estimation	16,187
Date of Issue	2008-09-11
Date of Implementation	2009-05-01
Older Standard (superseded by this standard)	GB/T 223.11-1991
Quoted Standard	GB/T 223.13; GB/T 223.14; GB/T 223.76; GB/T 6379.1; GB/T 6379.2; GB 12805; GB 12806; GB 12808; GB/T 20066; GB/T 20125
Adopted Standard	ISO 4937-1986, MOD
Regulation (derived from)	National Standard Approval Announcement 2008 No.16 (Total No.129)
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 provides a visual determination of chromium content by titration or potentiometric titration. This section applies to a method of pig iron, alloy steel, , mass fraction of high-temperature alloys and precision alloy was determined from 0. 10% to 35. 00% chromium content, Method Two for steel in the mass fraction of 0. 25 %-35. 00% carbon content of the steel grid Determination.