ASTM International - ASTM E1917-08
Standard Test Method for Determination of Phosphorus in Nickel, Ferronickel, and Nickel Alloys by Phosphovanadomolybdate Molecular Absorption Spectrometry
|Publication Date:||15 December 2008|
|ICS Code (Nickel, chromium and their alloys):||77.120.40|
significance And Use:
This test method is used for the determination of phosphorus in nickel, ferronickel, and nickel alloy samples by molecular absorption spectrometry to check compliance with compositional... View More
This test method is used for the determination of phosphorus in nickel, ferronickel, and nickel alloy samples by molecular absorption spectrometry to check compliance with compositional specifications. It is assumed that all who use the procedure will be trained analysts capable of performing common laboratory procedures skillfully and safely. It is expected that the work will be performed in a properly equipped laboratory and that proper waste disposal procedures will be followed. Appropriate quality control practices must be followed, such as those described in Guide E 882.View Less
1.1 This test method covers the determination of phosphorus in nickel, ferronickel, and nickel alloys in the range 0.0007 % to 0.05 %.
1.2 Arsenic, chromium, hafnium, niobium, silicon, tantalum, titanium, and tungsten interfere, but the interference can be avoided by complexation or volatilization (for chromium). The lowest phosphorus content (0.0007 %) can be reached only in samples with low contents of interfering elements.
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 hazards associated with the use of this test method see Practices E 50. Refer to specific warning notes given throughout this test method.