ISO 6685:1982
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
Chemical products for industrial use General method for determination of iron content 1,10-Phenanthroline spectrophotometric method
Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users
22-02-2019
English, French
01-07-1982
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All the iron(III) present in the test solution is reduced to iron(II) with ascorbic acid. At a pH between 2 and 9 1,10-phenanthroline is added. the measurement of the absorbance of the orange-red complex formed is carried out at the wavelength of maximum absorption (510 nm). The method is applicable to test solutions from which an aliquot portion can be taken containing between 10 and 500 g of Fe in a volume of not more than 60 m. Details of certain interferences and means by which they can be overcome are given in an annex.
| DevelopmentNote |
Also numbered as BS 6337-3(1983) (09/2005)
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| DocumentType |
Standard
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| Pages |
4
|
| PublisherName |
International Organization for Standardization
|
| Status |
Withdrawn
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| Standards | Relationship |
| NFT 20 060 : 83 FD | Identical |
| PN ISO 6685 : 2002 | Identical |
| NBN T 02 208 : 1984 | Identical |
| UNE 55709:1984 | Identical |
| ISO 8312:2015 | Rubber compounding ingredients Stearic acid Definition and test methods |
| PREN 939 : DRAFT 2014 | CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION - HYDROCHLORIC ACID |
| I.S. EN 939:2016 | CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION - HYDROCHLORIC ACID |
| 14/30300948 DC : 0 | BS EN 939 - CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION - HYDROCHLORIC ACID |
| DIN EN 939:2016-09 | CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION - HYDROCHLORIC ACID |
| BS ISO 8312:2015 | Rubber compounding ingredients. Stearic acid. Definition and test methods |
| BS 7164-27.2:1990 | Chemical tests for raw and vulcanized rubber. Methods for determination of iron content Photometric method |
| UNE-EN 939:2016 | Chemicals used for treatment of water intended for human consumption - Hydrochloric acid |
| BS EN 939:2009 | Chemicals used for treatment of water intended for human consumption. Hydrochloric acid |
| EN 939:2016 | Chemicals used for treatment of water intended for human consumption - Hydrochloric acid |
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