0 Items
My account
Phone: (011) 7541-421, 3409-301, 3409-335, 6547-293, 3409-310
E-mail: Standards sales: prodaja@iss.rs Education: iss-edukacija@iss.rs Information about standards: infocentar@iss.rs
Stevana Brakusa 2, 11030 Beograd
Main menu

ISO 4279:1977

Aluminium fluoride for industrial use — Determination of sodium content — Flame emission spectrophotometric method

Nov 1, 1977
95.99   Withdrawal of Standard   May 27, 2002

General information

95.99     May 27, 2002

ISO

ISO/TC 47

International Standard

71.060.50  

French   English  

Buying

Withdrawn

Language in which you want to receive the document.

Scope

Applicable to products having Na contents, expressed as Na2 O, of equal to or more than 0.05 % (m/m). The principle bases on fusion, at a controlled temperature, of a test portion with a mixture of lithium carbonate and boric oxide or with a mixture of lithium carbonate and lithium tetraborate in a platinum or platinum-gold alloy crucible. Extraction of the fused mass with hydeochloric acid solution. Aspiration of the solution into a flame and photometric measurement of the intensity of the radiation emitted at 589 nm.

Life cycle

NOW

WITHDRAWN
ISO 4279:1977
95.99 Withdrawal of Standard
May 27, 2002

National adoptions

SRPS H.B8.190:1979  
ISS

Aluminium fluoride for industrial use — Determination of sodium content — Flame emission spectrophotometric method

95.99   Withdrawal of Standard

B082 more