標準號：SIS SS-ISO 6957-1988
中文標準名稱：銅合金．抗脅強腐蝕性氨水測試
英文標準名稱：Copper alloys — Ammonia test for stress corrosion resistance
發(fā)布日期：1988/12/25 12:00:00
實施日期：1999/12/31 12:00:00
適用范圍：This International Standard specifies a test, using an am-moniacal atmosphere, for the detection of applied or residual stresses in copper alloy products which can cause failure of the material in service or storage through stress corrosion cracking. The method can also be used for testing assemblies and partial assemblies (of limited size).This method is relatively simple to carry out and its severity can be regulated by changing the pH value of the solution produc-ing the ammoniacal atmosphere.The appropnate pH-value for the test shall be specified in the product specification or agreed upon with respect to the alloy and its application.In annex A, recommendations are given for the choice of pH-values to be used for some frequently occurring applications.