JIS K 7112:1999
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Plastics -- Methods of determining the density and relative density of non-cellular plastics
English
31-07-1999
20-02-2023
This 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, but not powders. - Method B Pyknometer method for plastics in the form of powder, granules, pellets, flake, moulded articles reduced to small particles or liquid material. Determination of density for liquid material is in accordance with annex 2. 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 compartison of densities.
| DocumentType |
Standard
|
| Pages |
20
|
| PublisherName |
Japanese Standards Association
|
| Status |
Superseded
|
| SupersededBy |
Reaffirmed 2013 1999(R2013) [21/10/2013]1999(R2008) [01/10/2008]1999 [20/05/1999]1980
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