ISO 4278:1977
Withdrawn
Sodium fluoride for industrial use — Determination of carbonate content — Gravimetric method
Hardcopy , PDF
English, French
11-01-1977
02-14-2019
Applicable to products having contents, expressed as Na2 CO3 , more than 0.02 % (m/m). Describes the release of the carbon dioxide from a test portion by acidification and heating. Entrainment of the carbon dioxide in a flow of air and absorption in weighed absorption tubes containing soda asbestos. Specifies the weighing of the absorption tubes to determine the quantity released.
| Committee |
ISO/TC 47
|
| DevelopmentNote |
Also numbered as BS 5072-9(1980). (07/2005)
|
| DocumentType |
Standard
|
| Pages |
6
|
| PublisherName |
International Organization for Standardization
|
| Status |
Withdrawn
|
| Standards | Relationship |
| NFT 20 151 : 84 FD | Identical |
| NBN T 03 469 : 1983 | Identical |
| 10/30227819 DC : DRAFT DEC 2010 | BS ISO 7148-1 - PLAIN BEARINGS - TESTING OF THE TRIBOLOGICAL BEHAVIOUR OF BEARING MATERIALS - PART 1: TESTING OF BEARING METALS |
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