BS 2782-5:Methods 530A and 530B:1976
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
Methods of testing plastics. Optical and colour properties, weathering Determination of yellowness index. Determination of the colour of near-white or near-colourless materials
Hardcopy , PDF
02-08-2013
English
29-10-1976
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Specifies instrumental procedures for measuring the colour of non-fluorescent, near-white opaque or translucent materials, or near-colourless transparent plastics materials. Method 530A is suitable where the only characteristic of significance is yellowness. Giving a 'yellowness index' in appropriate cases. Method 530B is more general and is suitable where a fuller description of colour and lightness characteristics is required. Both are suitable for the transmittance of transparent and translucent plastics materials and to the reflectance of opaque plastics materials and suitably backed translucent plastics materials. The methods are of particular value in measuring changes produced by ageing processes.
| Committee |
PRI/21
|
| DevelopmentNote |
Supersedes 70/11332 DC. (06/2003) Inactive for the new design. (09/2008)
|
| DocumentType |
Standard
|
| Pages |
12
|
| PublisherName |
British Standards Institution
|
| Status |
Withdrawn
|
| Supersedes |
| BS 2782-5:Method 540B:1982 | Methods of testing plastics. Optical and colour properties, weathering Methods of exposure to laboratory light sources, (xenon arc lamp, enclosed carbon arc lamp, open-flame carbon arc lamp, fluorescent tube lamps) |
| BS 1125:1987 | Specification for WC flushing cisterns (including dual flush cisterns and flush pipes) |
| BS 3062:1985 | Specification for ophthalmic lens materials |
| ISO 1600:1990 | Plastics Cellulose acetate Determination of light absorption on moulded specimens produced using different periods of heating |
| ASTM D 2244 : 2016 : REDLINE | Standard Practice for Calculation of Color Tolerances and Color Differences from Instrumentally Measured Color Coordinates |
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