Standard No.:	GB/T 223.75-2008
English Name:	Iron steel and alloy - Determination of boron content - Methanol distillation-curcumin photometric method
Chinese Name:	钢铁及合金 硼含量的测定 甲醇蒸馏-姜黄素光度法
Chinese Classification:	H11    Steel and iron alloy analysis method
Professional Classification:	GB    National Standard
ICS Classification:	77.080.01 77.080.01    Ferrous metals in general 77.080.01
Issued by:	AQSIQ; SAC
Issued on:	2008-5-13
Implemented on:	2008-11-1
Status:	valid
Superseding:	GB/T 223.75-1991 Methods for chemical analysis of iron, steel and alloy The methanol distillation-curcumin photometric method for the determination of boron content
Language:	English
File Format:	PDF
Word Count:	3000 words
Price(USD):	130.0
Delivery:	via email in 1 business day

1 Scope This Part of GB/T 223 specifies methanol distillation - curcumin photometric method for determination of boron content. This Part is applicable to determination of boron in carbon steel, alloyed steel, high temperature alloy and precision alloy with boron mass fraction of 0.0005%~0.20%. 2 Normative References The following standards contain provisions which, through reference in this text, constitute provisions of this Part of GB/T 223. For dated reference, subsequent amendments to (excluding correction to), or revisions of, any of these publications do not apply. However, the parties whose enter into agreement according to this Part are encouraged to research whether the latest editions of these documents are applied or not. For undated references, the latest edition of the normative document referred to applies. GB/T 6379.1 Accuracy (Trueness and Precision) of Measurement Methods and Results - Part 1: General Principles and Definitions GB/T 6379.2 Accuracy (Trueness and Precision) of Measurement Methods and Results - Part 2: Basic Method for the Determination of Repeatability and Reproducibility of a Standard Measurement Method GB/T 20066 Steel and Iron - Sampling and Preparation of Samples for the Determination of Chemical Composition