This standard was last reviewed and confirmed in 2018. Therefore this version remains current.
Abstract Preview
Applicable to products having contents, expressed as phosphorus pentoxide, of 0.005 % (m/m) to 0.05 % (m/m). The residue from the determination of the loss of mass according to ISO 5444 is used to prepare the test sample. Dissolution in dilute hydrochloric acid and nitric acid solutions. Formation of the yellow molybdovanadate and spectrophotometric measurement at a wavelength of about 420 nm. Calculation of the content from the measured absorbance.
General information
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Status : PublishedPublication date : 1978-10
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Edition : 1Number of pages : 3
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- ICS :
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Salts
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| Format | Language | |
|---|---|---|
| Paper |
- CHF38
Life cycle
A standard is reviewed every 5 years
Revisions / Corrigenda
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Now confirmed
ISO 5440:1978
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