BS 2782-6:Methods 620A to 620D:1991:2003 Edition
$102.76
Methods of testing plastics. Dimensional properties – Determination of density and relative density of non-cellular plastics – Methods 620A to 620D:Determination of density and relative density of non-cellular plastics
| Published By | Publication Date | Number of Pages |
| BSI | 2003 | 16 |
1.1 This International Standard specifies four methods for the determination of the density and relative density of non-cellular plastics in the form of sheet, film, tube, moulded objects, and moulding powders, granules and pellets.
– Method A
Immersion method for plastics in a finished condition, whether machined or otherwise formed (see 5.1.3), but not powders.
– Method B
Pyknometer method for plastics in the form of powder, granules, pellets, flake or moulded articles reduced to small particles.
– Method C
Titration method for plastics in forms similar to those required for method A, including pellets.
– Method D
Density gradient column method for plastics in forms similar to those required for method A, and including pellets. Density gradient columns are columns of liquid, the densities of which increase uniformly from top to bottom. They are particularly suited to measurement of small samples of products and to comparison of densities.
Four methods for plastics in the form of sheet, film, tube, powder, granules, etc.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 1 | BRITISH STANDARD |
| 2 | Committees responsible for this British�Standard |
| 3 | Contents |
| 5 | 1 Scope and field of application 1.1 This International Standard specifies four methods for the determination of the density and r… 1.2 Density and relative density are used frequently, both to follow the variations in the physic… 1.3 Often the density of plastics will depend upon the methods employed in the preparation of tes… 2 References 3 Definitions density, relative density |
| 6 | 4 Conditioning |
| 7 | 5 Methods 5.1 Method A |
| 8 | 5.2 Method B |
| 9 | 5.3 Method C |
| 10 | 5.4 Method D |
| 13 | 6 Correction for buoyancy of air 7 Test report |
| 14 | Figure 1 Density gradient column filling devices |
| 15 | Annex Liquid systems for density gradient columns |
