ISO 1619:1976
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Cryolite, natural and artificial — Preparation and storage of test samples
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09-01-1976
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Specifies the procedure for the preparation of crude samples and dried samples and of natural and synthetic materials having a molar ratio sodium fluoride/aluminium trifluoride between 3 and 1,7 approximately. The crude sample is intended for the determination of geometric characteristics, for certain physical and physico-chemical tests and for moisture determination. The dried sample serves especially for chemical tests. The principle of the procedure consists in grinding followed by sieving of the sample until the whole passes through a sieve of mesh aperture 0,125 mm. Thorough mixing and drying at approximately 110 °C.
| DocumentType |
Standard
|
| Pages |
2
|
| PublisherName |
International Organization for Standardization
|
| Status |
Current
|
| Standards | Relationship |
| BS 5050:1974 | Similar to |
| NBN T 03 431 : 1983 | Identical |
| BS ISO 12926:2012 | Aluminium fluoride for industrial use. Determination of trace elements. Wavelength dispersive X-ray fluorescence spectrometric method using pressed powder tablets |
| ISO/TR 4277:2009 | Cryolite, natural and artificial Conventional test for evaluation of free fluorides content |
| ISO 12926:2012 | Aluminium fluoride for industrial use — Determination of trace elements — Wavelength dispersive X-ray fluorescence spectrometric method using pressed powder tablets |
| 12/30203516 DC : 0 | BS ISO 12926 - ALUMINIUM FLUORIDE FOR INDUSTRIAL USED - DETERMINATION OF TRACE ELEMENTS - WAVELENGTH DISPERSIVE X-RAY FLUORESCENCE SPECTROMETRIC METHOD USING PRESSED POWDER TABLETS |
| PD ISO/TR 4277:2009 | Cryolite, natural and artificial. Conventional test for evaluation of free fluorides content |
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