ISO 983:1974
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
Sodium hydroxide for industrial use Determination of iron content 1,10- Phenanthroline photometric method
Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users
26-02-2019
English, French
01-12-1974
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Specifies a method that is more sensitive and more widely used than the 2,2'-bipyridyl method. It is applicable to products having iron contents equal to or greater than 0.5 mg/kg. The principle is based on the reduction of trivalent iron by hydroxylammonium chloride, formation of a bivalent iron/1,10-phenanthroline complex in a buffered system. Photometric measurement of the coloured complex at a wavelength of about 510 nm. This method has also been approved by the IUPAC. - Cancels and replaces ISO Recommendation R 983-1969.
| DevelopmentNote |
Also numbered as BS 6075-3(1981) (09/2005)
|
| DocumentType |
Standard
|
| Pages |
2
|
| PublisherName |
International Organization for Standardization
|
| Status |
Withdrawn
|
| Standards | Relationship |
| NFT 20 423 : 76 FD | Identical |
| UNE 55603:1978 | Identical |
| NBN T 03 125 : 1980 | Identical |
| UNE 55704:1983 | Identical |
| BS 6075-11:1981 | Methods of sampling and test for sodium hydroxide for industrial use Determination of mercury content (flameless atomic absorption method) |
| BS 6075-8:1981 | Methods of sampling and test for sodium hydroxide for industrial use Determination of sulphate content |
| BS 6075-9:1981 | Methods of sampling and test for sodium hydroxide for industrial use Determination of calcium and magnesium contents |
| BS 6075-10:1981 | Methods of sampling and test for sodium hydroxide for industrial use Determination of mercury content (photometric method) |
| ISO 3195:1975 | Sodium hydroxide for industrial use — Sampling — Test Sample — Preparation of the main solution for carrying out certain determinations |
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