GB/T 4950-2021 (English Version) PDF

Scope: This document specifies the classification, model and specification, requirements, test methods, inspection rules, signs, packaging, transportation and storage of zinc alloy sacrificial anodes (hereinafter referred to as zinc anodes). This document is applicable to the design, manufacture, inspection, storage, etc. of steel structure cathodic protection and zinc anodes in media with resistivity less than 150 m (including seawater, sea mud, soil, etc.), including ships, port facilities, and marine engineering `.Buried metal pipelines, storage, seawater cooling water systems and other steel structure cathodic protection and front anode.

GB/T 4950-2021 Referenced Document

CB/T 3764 Metal coating and chemical coating thickness series and quality requirements
GB/T 1196 Unalloyed aluminium ingots for remelting*， 2023-12-28 Update
GB/T 1499.2 Steel for the reinforcement of concrete—Part 2:Hot rolled ribbed bars
GB/T 17848 Test methods for electrochemical properties of sacrificial anodes
GB/T 470 Zinc ingots
GB/T 6682 Water for analytical laboratory use.Specification and test methods
GB/T 700 Carbon structural steels
GB/T 8170 Rules of rounding off for numerical values & expression and judgement of limiting values
GB/T 8923.1 Preparation of steel substrates before application of paints and related products.Visual assessment of surface cleanliness.Part 1:Rust grades and preparation grades of uncoated steel substrates and of steel substrates after overall removal of previous coa
YS/T 72 Cadmium ingot

2021 GB/T 4950-2021 Sacrificial anode of zinc alloy
2007 GB/T 4951-2007 Chemical analysis methods for sacrificial anodes of Zn-Al-Cd alloy
2002 GB/T 4950-2002 Sacrificial anode of Zn-Al-Cd alloy
1999 GB/T 17848-1999 Test methods for electrochemical properties of sacrificial anodes
0000 GB/T 4950-1985