標準號：MS 1005-1986
發(fā)布日期：1986/1/1 12:00:00
實施日期：1999/12/31 12:00:00
適用范圍：1.1 This Malaysian Standard prescribes methods for the chemical analysis of white metal bearing alloys having chemical compositions within the following limits:Tin 0.5 to 95 (Note 1)Antimony 1.0 to 20Lead 0.1 to 95 (Note.1)Copper 0.1 to 10Iron 0.01 to 0.**rsenic 0.01 to 2.0Bismuth 0.01 to 0.2Zinc 0.001 to 0.01Aluminium 0.001 to 0.01Cadmium 0.01 to 0.1NOTE 1. In this class of alloys, lead in amounts over 20% is usually determined by difference. Tin in amounts of 75% and over may be taken by difference, if the other elements have been determined.1.2 The analytical procedures appear in the following order:ClauseTin by the iodimetric titration method 4Antimony by the volumetric potassium bromate method 5Lead and copper by the hydrobromic acid separation method 6Copper by the photometric cupric bromide method 7Iron by the photometric ortho-phenanthroline method 8Arsenic by the distillation-bromate method 9Arsenic by the photometric molybdenum blue method 10Bismuth by the photometric thiourea method 11Zinc by the photometric dithizone method 1 2Aluminium by the photometric chrome-azurol S method 13