Logo
Login Sign Up
Current Revision

ISO 5373:1981

Condensed phosphates for industrial use (including foodstuffs) -- Determination of calcium content -- Flame atomic absorption spectrometric method
Best Price Guarantee
Instant

$51.00

2-5 Days

$51.00

SAVE 15%

$86.70


Sub Total (1 Item(s))

$ 0.00

Estimated Shipping

$ 0.00

Total (Pre-Tax)

$ 0.00


or
International Organization for Standardization Logo

ISO 5373:1981

Condensed phosphates for industrial use (including foodstuffs) -- Determination of calcium content -- Flame atomic absorption spectrometric method

Document Preview

Applicable to products having Ca contents equal to or more than 50 mg/kg. The presence of soluble SiO2 up to 5 g/ml in the test solution does not interfere. Hydrolysis by boiling a test portion in hydrochloric acid medium. Addition of sodium ions, until a constant concentration is obtained, to stabilize the promotion and emission of Ca; addition of lanthanum chloride to increase the sensitivity of the method. Aspiration of the solution into a dinitrogen monoxide-acetylene flame. Spectrometric measurement of the absorption of the 422.7-nm line emitted by a hollow-cathode calcium lamp. Has also been approved by the IUPAC.

SDO ISO: International Organization for Standardization
Document Number ISO 5373
Publication Date Not Available
Language en - English
Page Count
Revision Level
Supercedes
Committee ISO TC 47
Publish Date Document Id Type View
Not Available ISO 5373:1981 Revision