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ISO 3360:1976

Phosphoric acid and sodium phosphates for industrial use (including foodstuffs) -- Determination of fluorine content -- Alizarin complexone and lanthanum nitrate photometric method

General information

Valid from 01.08.1976
ICS Groups
67.220.20 Food additives 71.060.30 Acids 71.060.50 Salts
Directives or regulations
None

Standard history

Status
Date
Type
Name
01.08.1976
Main
ISO 3360:1976
Applicable to products the F content of which is equal to or more than 0.5 mg/kg. Specifies the separation of the element from a test portion by steam distillation in a phosphoric acid medium. Formation of a blue-coloured complex with a combined reagent alizarin complexone/lanthanum nitrate in a buffered medium at the pH of 4.6. Addition of acetone to increase the stability of the complex and the sensitivity. Photometric measurement of the complex at a wavelength of about 600 nm.

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Standard monitoring
English (PDF 2 MB)

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Standards designation

EVSEstonian standard
ENEuropean standard (published by an CEN or CENELEC)
EN ISOInternational standard adopted as an European standard
ISOInternational Organization for Standardization’s standard
IECInternational Electrotechnical Commission’s standard
HDCENELEC’s harmonisation document
EVS-ENEuropean standard implemented in Estonia
EVS-EN ISOInternational standard adopted in Europe and implemented in Estonia
EVS-EN ISO/IECInternational standard/International electrotechnical standard adopted in Europe and implemented in Estonia
EVS-IECInternational electrotechnical standard implemented in Estonia
EVS-ISO International standard implemented in Estonia
 
A, AMDamedment
+Aa full standard plus the amendment
/Aonly amendment
COR, ACcorrigendum
+CORa full standard plus the corrigendum
NAnational annex
+NAa full standard plus the national annex
/NAonly national annex
TStechnical specification
TRtechnical report
CWAagreement, developed by a CEN or CENELEC
prEVS-EN (etc)draft standard
 
etthe standard is in Estonian only
enthe standard is in English only
et-enthe standard is in Parallel text Estonian-English