ASTM G69-2020 測定鋁合金潛在腐蝕性的標準試驗方法

ASTM G69-2020發(fā)行信息

標準號ASTM G69-2020

中文名 測定鋁合金潛在腐蝕性的標準試驗方法

英文名 Standard Test Method for Measurement of Corrosion Potentials of Aluminum Alloys

發(fā)布日期2020

實施日期

廢止日期無

國際標準分類號77.120.10 (Aluminium and aluminium alloys)

發(fā)布單位US-ASTM

ASTM G69-2020適用范圍

1.1 This test method covers a procedure for measurement of the corrosion potential (see Note 1) of an aluminum alloy in an aqueous solution of sodium chloride with enough hydrogen peroxide added to provide an ample supply of cathodic reactant.

NOTE 1:The corrosion potential is sometimes referred to as the open-circuit solution or rest potential. See Terminology G193.

1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

注1：腐蝕電位有時稱為開路電位或靜止電位。見術(shù)語G193。

1.2以國際單位制表示的數(shù)值應視為標準值。本標準不包括其他計量單位。

1.3本標準并非旨在解決與其使用相關(guān)的所有安全問題（如有）。本標準的使用者有責任在使用前建立適當?shù)陌踩?、健康和環(huán)境實踐，并確定監(jiān)管限制的適用性。

1.4本國際標準是根據(jù)世界貿(mào)易組織技術(shù)性貿(mào)易壁壘（TBT）委員會發(fā)布的《關(guān)于制定國際標準、指南和建議的原則的決定》中確立的國際公認標準化原則制定的。

1.1本試驗方法包括測量鋁合金在氯化鈉水溶液中的腐蝕電位（見注1）的程序，該溶液中添加了足夠的過氧化氫，以提供充足的陰極反應物。