International Organization for Standardization (ISO)
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ISO 10714:1992
Scope
The method is applicable with the following limitations: phosphorus contents between 0,001 0 % (m/m) and 1,0 % (m/m), application ranges and test portions in table 1 depending on the concentration of the interfering elements (arsenic, hafnium, niobium, tantalum, titanium, tungsten).
ISO 10714:1992 history
1992ISO 10714:1992 Steel and iron; determination of phosphorus content; phosphovanadomolybdate spectrophotometric method