GB/T 12689.1-2010Methods for chemical analysis of zinc and zinc alloys -- Part 1: Determination of aluminum content -- Chrome azurol S-polyethylene glycol octyl phenyl ether-ethyl pyridine bromine spectrophotometry, Chrome azurol S spectrophotometric method and EDTA titri (English PDF)

Foreword

GB/T 12689-2010 "Methods for chemical analysis of zinc and zinc alloy" is divided into 13 parts.

--- Part 1. Determination of the amount of chrome aluminum azure S- octyl polyethylene glycol phenyl ether - cetylpyridinium bromide, spectrophotometry, CAS Spectrophotometry and EDTA titration;

--- Part 2. Determination of arsenic content by atomic fluorescence spectrometry;

--- Part 3. Determination of cadmium content by flame atomic absorption spectrometry;

--- Part 4. Determination of the amount of copper diethyl dithiocarbamate lead spectrophotometry, flame atomic absorption spectrometry and electric solution;

--- Part 5. Determination of iron content sulfosalicylic acid spectrophotometric method and the flame atomic absorption spectrometry;

--- Part 6. Determination of lead content oscillopolarographic law;

--- Part 7. Determination of magnesium content - Flame atomic absorption spectrometry;

--- Part 8. Determination of silicon content - Molybdenum blue spectrophotometric method;

--- Part 9. Determination of antimony content atomic fluorescence spectrometry and flame atomic absorption spectrometry;

--- Part 10. Determination of tin content Phenylfluorone - cetyl trimethylamine spectrophotometry;

--- Part 11. lanthanum, cerium Determination Tribromoarsenazo spectrophotometry;

--- Part 12. lead, cadmium, iron, copper, tin, aluminum, arsenic, antimony, magnesium, lanthanum, cerium content - Inductively coupled plasma optical emission Spectroscopy;

--- Part 13. Optical Emission Spectrometry.

This is Part 1.

This section drafted in accordance with GB/T 1.1-2009 given rules.

This section uses three measurement methods for chemical analysis of zinc and zinc alloy aluminum content. Method 3 wherein modify using ISO 1169:2006 (E) "Determination of the amount of zinc aluminum alloy --- titration" (in English), on the main technical content of ISO 1169:2006 (E) the same as the preparation of structure Do not correspond exactly, this section lists the reg number and ISO 1169 in Appendix A.2006 (E) List of control clauses numbered in the appendix B are listed in this section with the ISO 1169:2006 (E) List of technical differences and their causes. About the technical differences have been incorporated into the text and identifies a single vertical line in which they are involved with the provisions margin.

This Part replaces GB/T 12689.1-2004 "zinc and zinc alloys - Determination of aluminum content", this part of the original criteria Ratio, the main changes are as follows.

--- Of Tier 1 and Tier 2 text and text has been modified;

--- Method 3. limit the scope of analysis is extended from 13% to 30%;

--- Increased the indicative terms;

--- Increasing the test report clause.

The non-ferrous metal part by the National Standardization Technical Committee (SAC/TC243) centralized.

This section is responsible for drafting unit. MCC Huludao Nonferrous Metals Group Co., Ltd., China Nonferrous Metals Industry Quality Standards and Metrology Institute the study.

Part 1 Drafting Unit. Zhuzhou Smelter Group Corporation Limited.

Part 1 participated in the drafting unit. silver Northwest Lead and Zinc Smelter Company, MCC Huludao Nonferrous Metals Group Co., Ltd., Shenzhen City Lingnan Nonferrous Metals Co., Ltd. Shaoguan smelter Shuikoushan Nonferrous Metals Group Co., Ltd.