发布时间:2024-05-27 17:49:26 - 更新时间:2024年06月29日 15:22
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This test method is used for the analysis of nickel, ferronickel, and nickel base 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 882.1.1 This test method covers the determination of phosphorus in nickel, ferronickel, and nickel alloys in the 0.0007 % through 0.05 % range.1.2 Arsenic, chromium, hafnium, niobium, silicon, tantalum, titanium, and tungsten interfere, but the interference can be avoided by complexation or volatilization (for Cr). The lowest phosphorus content (0.0007 %) can be reached only in samples with low contents of interfering elements.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. For specific hazards associated with the use of this practice see Practices E 50. Refer to specific warning notes given throughout this test method.
Standard Test Method for Determination of Phosphorous in Nickel, Ferronickel, and Nickel Alloys by the Phosphovanadomolybdate Molecular Absorption Spectrometric Method
이 규격은 인 함량이 0.000 5∼0.05 %(m/m)의 범위에 있는 니켈, 페로니켈 및
Nickel, ferronickel and nickel alloys-Determination of phosphorus Content-Phosphovanadomolybdate molecular absorption spectrometric method
이 규격은 인 함량이 0.000 5∼0.05 %(m/m)의 범위에 있는 니켈, 페로니켈 및
Nickel, ferronickel and nickel alloys-Determination of phosphorus Content-Phosphovanadomolybdate molecular absorption spectrometric method
1.1 This test method covers the determination of phosphorus in nickel, ferronickel, and nickel alloys in the 0.0007% through 0.05% range.
Standard Test Method for Determination of Phosphorous in Nickel, Ferronickel, and Nickel Alloys by Phosphovanadomolybdate Molecular Absorption Spectrometric Method
Phosphorus content can be determined in the range of 0,000 5 % (m/m) to 0,05 % (m/m). As, Cr, Hf, Nb, Si, Ta, Ti, W interfere, but the interferences can be avoided. The principle is dissolution of a test portion in a mixture of nitric and hydrochloric acids, fuming with perchloric acid, removal of chromium, complexation of silicon, conversion of phosphorus to phosphovanadomolybdic acid, extraction of this compound.
Nickel, ferronickel and nickel alloys; determination of phosphorus content; phosphovanadomolybdate molecular absorption spectrometric method
Copper and copper alloys. Phospborus-deoxidxzed copper. Chemical composition and applicaticm directions
Provides the accepted common name for the chemical compound given. Includes the use of the common name and the physical and chemical properties of the chemical compound.
Common Name for the Pest Control Chemical O-Ethyl S-propyl O-(2,4,6-Trichlorophenyl) phosphorothioate "Trifenofos"
Phosphorus Oxychloride