GB/T 17731-2015 in English

《GB/T 17731-2015镁合金牺牲阳极》由TC243（全国有色金属标准化技术委员会）归口，TC243SC1（全国有色金属标准化技术委员会轻金属分会）执行，主管部门为中国有色金属工业协会。
本标准规定了镁合金牺牲阳极(以下简称镁阳极)的要求、试验方法、检验规则、标志、包装、运输、贮存及订货单(或合同)内容。
本标准适用于在土壤、淡水及海水等介质中工作的金属(主要是钢质)设施采用阴极保护用的铸造、挤压方法生产的镁阳极。

1 Scope

This standard specifies requirements, test methods, inspection rules, marking, packaging, transport, storage and order (or contract) contents of the magnesium alloy sacrificial anode (hereinafter referred to as magnesium anode).

This standard is applicable to magnesium anodes produced through casting or extruding and used for cathodic protection of metal (mainly steel) facilities working in such media as soil, fresh water and seawater.

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 912 Hot-rolled Sheets and Strips of Carbon Structural Steels and High Strength Low Alloy Structural Steels
GB 1499.1 Steel for the Reinforcement of Concrete - Part 1: Hot Rolled Plain Bars
GB/T 4950-2002 Sacrificial Anode of Zn-Al-Cd Alloy
GB/T 8170 Rules of Rounding off for Numerical Values & Expression and Judgment of Limiting Values
GB/T 13748 (all parts) Chemical Analysis Methods of Magnesium and Magnesium Alloys
GB/T 24488 Test Method for Electrochemical Properties of Magnesium Alloys Sacrificial Anode

3 Terms and Definitions

For the purposes of this document, the following terms and definitions apply.

Foreword i
1 Scope
2 Normative References
3 Terms and Definitions
4 Requirements
5 Test Methods
6 Inspection Rules
7 Marking, Packaging, Transport and Storage
8 Order (or Contract) Contents
Annex A (Informative) Electric Potential Comparison Table Between the Reference Electrode of the Saturated Copper Sulfate and That of Saturated Calomel