GB/T 17432-2012Methods of sampling for analyzing the chemical composition of wrought aluminum and aluminum alloys (English PDF)

Foreword

This Standard was drafted in accordance with the rules given in GB/T 1.1-2009.

This Standard replaces GB/T 17432-1998 "Methods of Sampling for Analyzing the

Chemical Composition of Wrought Aluminum and Aluminum Alloy". Compared with

GB/T 17432-1998, the main changes in this Standard are as follows.

- in the scope, it defines that "the preparation of specimens for chemical composition

analysis of cast aluminum alloy ingots, aluminum master alloys, other metal and

alloy products or semi-finished products may also refer to the methods specified

in this Standard";

- added the requirements for "reagents" and "major tools and equipment";

- deleted "3.1.3 The purchaser can use the tensile specimen after breaking as the

selected sample" in GB/T 17432-1998;

- supplemented the relevant requirements for sample selection and specimen

preparation.

This Standard uses redrafting method to refer to ASTM E55.1991 (1996) "Sampling

Wrought Nonferrous Metals and Alloys for Determination of Chemical Composition",

ASTM E716.1994 (2002) "Sampling Aluminum and Aluminum Alloys for

Spectrochemical Analysis" and EN 14361.2004 "Aluminium and aluminium alloys -

Chemical analysis - Sampling from metal melts". The degree of conformity with ASTM

E55.1991 (1996), ASTM E716.1994 (2002) and EN14361.2004 is non-equivalent.

This Standard shall be under the jurisdiction of National Technical Committee on Non-

ferrous Metals of Standardization Administration of China (SAC/TC 243).

Main drafting organizations of this Standard. Northeast Light Alloy Co., Ltd., China

Nonferrous Metals Industry Standard Metrology and Quality Research Institute.

The drafting organizations of this Standard. Shandong Yankuang Light Alloy Co., Ltd.,

Chinalco Ruimin Aluminum Strip Co., Ltd.

Main drafters of this Standard. Zhou Bing, Ge Lixin, Wu Xinfeng, Wang Guojun, Zheng

Yunlong, Wei Yanqin, Xie Yancui, Liu Sha, Cao Guangzhuang, Pan Biao, Guo Rui.

Methods for sampling for analyzing the chemical

composition of wrought aluminum and aluminum alloys

1 Scope

This Standard specifies terms and definitions of sampling methods for chemical

composition analysis of wrought aluminum and aluminum alloys, reagents, main tools

and equipment, sample selection, specimen preparation, storage and resampling.

This Standard applies to the preparation method of specimens for chemical composition

analysis of deformed aluminum and aluminum alloy products and semi-finished

products. The preparation of specimens for chemical composition analysis of cast

aluminum alloy ingots, aluminum master alloys, other metal and alloy products or semi-

finished products may also refer to the methods specified in this Standard.

2 Normative references

The following referenced documents are indispensable for the application of this

document. For dated references, only the edition cited applies. For undated references,

the latest edition of the referenced document (including any amendments) applies.

GB/T 3190, Wrought aluminium and aluminium alloys - Chemical composition

limits

GB/T 8005.1, Aluminium and aluminium alloy terms and definitions - Part 1.

Product and method of processing and treatment

3 Terms and definitions

For the purposes of this document, the terms and definitions defined in GB/T 8005.1

and GB/T 8005.2 apply.

4 Reagents

5 Main tools and equipment

6 Sample selection

7 Specimen preparation

8 Specimen storage

9 Re-sampling