ISO 11400:1992
Withdrawn
View Superseded by
Nickel, ferronickel and nickel alloys — Determination of phosphorus content — Phosphovanadomolybdate molecular absorption spectrometric method
Hardcopy , PDF
English, French
09-03-1992
04-09-2025
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.
| Committee |
ISO/TC 155
|
| DevelopmentNote |
Also numbered as BS 6783-13(1992) (04/2005)
|
| DocumentType |
Standard
|
| Pages |
5
|
| PublisherName |
International Organization for Standardization
|
| Status |
Withdrawn
|
| SupersededBy |
| Standards | Relationship |
| PN ISO 11400 : 1996 | Identical |
| IS 17320 : 2020 | Identical |
| ISO 9725:2017 | Nickel and nickel alloy forgings |
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