ISO 3699:1976
Current
The latest, up-to-date edition.
Anhydrous hydrogen fluoride for industrial use — Determination of water content — Karl Fischer method
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01-08-1976
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Applicable to products having a water content between 0.01 % (m/m) and 0.5 % (m/m). Is supplemented by ISO 3700 and intended for reference purposes. Bases on addition of a cooled test portion to cooled dry pyridine containing 5 % of anhydous hydrogen fluoride. The apparatus for measuring the test portion and titration and the measuring vessel are shon in figures. Subsequent electrometric titration of the water with the Karl Fischer reagent.
| Committee |
ISO/TC 226
|
| DocumentType |
Standard
|
| Pages |
6
|
| ProductNote |
THIS STANDARD ALSO REFERS TO ISO/R 760
|
| PublisherName |
International Organization for Standardization
|
| Status |
Current
|
| Standards | Relationship |
| NBN T 03 514 : 1983 | Identical |
| NFT 20 331 : 84 FD | Identical |
| BS 5365-3:1979 | Identical |
| ISO/TR 4277:2009 | Cryolite, natural and artificial Conventional test for evaluation of free fluorides content |
| ISO 3700:1980 | Anhydrous hydrogen fluoride for industrial use — Determination of water content — Conductimetric method |
| PD ISO/TR 4277:2009 | Cryolite, natural and artificial. Conventional test for evaluation of free fluorides content |
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