This standard was last reviewed and confirmed in 2020. Therefore this version remains current.
The principle of the method specified is dissolving a test portion in hydrochloric and nitric acids, decomposing resistant boron compounds (e.g. boron nitrides) by fuming the sample solution with phosphoric and sulfuric acids at not less than 290 °C, forming the boron curcumin complex in a buffered acetic acid and sulfuric acid medium, and measuring the absorbance of the test solution in a molecular absorption spectrometer at 543 nm. Applies to nickel and nickel alloys having a total boron content in the range of 4 g/t to 240 g/t.
Status: PublishedPublication date: 1993-08
Edition: 1Number of pages: 8
Technical Committee: ISO/TC 155 Nickel and nickel alloys
- ICS :
- 77.120.40 Nickel, chromium and their alloys
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|std 1 61|
|std 2 61||Paper|
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Stage: 90.93 (Confirmed)
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