This test is carried out by W practice of American ASTM:A736 86(Standard practices for detecting susceptibility to intergranular attack in ferritic stainless steels).

• 本试验参照美国 ASTM:A736 - 86标准 (草酸法检测铁素体不锈钢对晶间腐蚀敏感性的规程 )中的 W-试验 .