镉的化学分析标准试验方法

详细信息   

• 标准号：ASTM E396-2012
• 发布日期：2012
• 英文题名：Standard Test Methods for Chemical Analysis of Cadmium
• 英文主题词：antimony ; arsenic ; cadmium ; copper ; lead ; silver ; thallium ; tin ; zinc ; Silver content--cadmium ; Spectrophotometry--atomic absorption ; Thallium content ; Tin content--cadmium ; Zinc content--cadmium ; Antimony content--cadmium ; Arsenic content--cadmium ; Cadmium metals/alloys ; Copper content--cadmium ; Lead content--cadmium
• 标准状态：现行
• 发布单位：US-ASTM
• 国际标准分类号：77.040.30 (Chemical analysis of metals)
• 载体形态：13P.;A4
• 中国标准分类号：H13
• 国别：美国材料与试验协会

文摘

These test methods for the chemical analysis of cadmium are primarily intended to test such material for compliance with compositional specifications in Specification B440. It is assumed that all who use these test methods will be trained analysts capable of performing common laboratory procedures skillfully and safely. It is expected that work will be performed in a properly equipped laboratory.

1.1 These test methods cover the chemical analysis of cadmium having chemical compositions with the following limits:

Element	Concentration, max, %
Antimony	0.001
Arsenic	0.003
Copper	0.015
Lead	0.025
Silver	0.010
Thallium	0.003
Tin	0.010
Zinc	0.035

1.2 The test methods appear in the following order:

	Sections
Antimony by the Rhodamine B Photometric Method [0.0002 to 0.0010%]	62-72
Arsenic by the Molybdenum Blue Photometric Method [0.001 to 0.005%]	40-50
Copper by the Neocuproine Photometric Method [0.002 to 0.030%]	10-19
Copper, Lead, Silver, and Zinc by the Atomic Absorption Method [0.004 to 0.02% Cu, 0.01 to 0.05% Pb, 0.004 to 0.02 % Ag and 0.01 to 0.05% Zn]	51-61
Lead by the Dithizone Photometric Method [0.001 to 0.05%]	20-29
Thallium by the Rhodamine B Photometric Method [0.0003 to 0.005%]	30-39
Tin by the 8-Quinolinol Photometric Method [0.0025 to 0.0150%]	73-82

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 and health practices and determine the applicability of regulatory limitations prior to use. Specific precautionary information is given in Section 6 and 25.8.