ISO 787-23:1979
Current
The latest, up-to-date edition.
General methods of test for pigments and extenders — Part 23: Determination of density (using a centrifuge to remove entrained air)
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English, French
01-12-1979
Displacement liquids of known density should be selected in which the material to be tested is insoluble, and which has good wetting properties and a low evaporation rate under vacuum. High-boiling aromatic or aliphatic hydrocarbons are suitable. The temperature, t, at which the determination is carried out affects the density of the displacement liquid; each weighing should be made at a constant temperature. The principle consists in weighing into a tared tube a quantity of a dried sample, wetting it with displacement liquid, centrifuging until the occluded air is removed and calculation of the density from the difference of masses.
| Committee |
ISO/TC 256
|
| DocumentType |
Standard
|
| Pages |
2
|
| PublisherName |
International Organization for Standardization
|
| Status |
Current
|
| Standards | Relationship |
| NF EN ISO 787-23 : 1995 | Identical |
| NBN EN ISO 787-23 : 1995 | Identical |
| NFT 31 201 : 1986 | Similar to |
| NEN EN ISO 787-23 : 1995 | Identical |
| NS EN ISO 787-23 : 1ED 1995 | Identical |
| I.S. EN ISO 787-23:1996 | Identical |
| PN EN ISO 787-23 : 1999 | Identical |
| SS-EN ISO 787-23 : 1995 | Identical |
| BS EN ISO 787-23:1995 | Identical |
| EN ISO 787-23:1995 | Identical |
| BS 3483-B9(1980) : 1980 AMD 8682 | Identical |
| UNE-EN ISO 787-23:1996 | Identical |
| DIN EN ISO 787-23:1995-10 | Identical |
| JIS K 5101-11-2:2004 | Identical |
| ISO 787-24:1985 | General methods of test for pigments and extenders — Part 24: Determination of relative tinting strength of coloured pigments and relative scattering power of white pigments — Photometric methods |
| EN ISO 787-24:1995 | General method of tests for pigments and extenders - Part 24: Determination of relative tinting strength of coloured pigments and relative scattering power of white pigments - Photometric methods (ISO 787-24:1985) |
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