Значение и использование

These test methods are primarily intended to test refined nickel metal for compliance with compositional specifications. 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 the analytical work will be performed in a properly equipped laboratory under appropriate quality control practices.

Область применения

1.1 These test methods apply to the chemical analysis of refined nickel and other forms of metallic nickel having chemical compositions within the following limits:

ElementWeight %Antimony, less than0.005Arsenic, less than0.005Bismuth, less than0.01Cadmium, less than0.0025Carbon, max0.03Cobalt, max1.00Copper, max1.00Hydrogen, max0.003Iron, max0.15Lead, less than0.01Manganese, less than0.20Nickel, min98.0Nitrogen, less than0.50Oxygen, less than0.03Phosphorus, less than0.005Selenium, less than0.0010Silicon, less than0.005Silver, less than0.01Sulfur, max0.01Tellurium, less than0.0010Thallium, less than0.0010Tin, less than0.005Zinc, less than0.015

1.2 These test methods may be used to determine the following elements by the methods indicated below:

Antimony, Arsenic, Bismuth, Cadmium, Lead, Selenium, Silver, Tellurium, Tin, and Thallium by the Electrothermal Atomic Absorption MethodBismuth, Cadmium, Cobalt, Copper, Iron, Lead, Manganese, Silver, and Zinc by the Flame Atomic Absorption MethodCarbon, Total, by the Combustion-Instrumental MethodNickel by the Dimethylglyoxime Gravimetric MethodNitrogen by the Inert Gas Fusion Thermal Conductivity MethodOxygen by the Inert Gas Fusion MethodSulfur by the Infrared Absorption MethodSulfur by the Methylene Blue Spectrophotometric Method After Generation of Hydrogen Sulfide

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

1.4 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. For specific precautions, see Section 6.