The grey scale consists of nine pairs of non-glossy neutral grey coloured chips, which illustrate the perceived Colour differences. These give a corresponding fastness rating of 5, 4-5, 4, 3-4, 3, 2-3, 2, 1-2, and 1.
They are used in the assessment of Colour change occurring in fastness tests as described in ISO 105-A02. They are also essential in the grading of light fastness tests when using the Light Fastness Standards.
The grey scale consists of nine pairs of non-glossy grey and white coloured chips which illustrate the perceived depth of staining. These give a corresponding fastness rating of 5, 4-5, 4, 3-4, 3, 2-3, 2, 1-2, 1.
They are used to assess the amount of staining occurring on adjacent undyed fabrics during fastness tests. Their use is described in ISO 105-A03.
| Certificate | Item No. | Description | Batch |
|---|---|---|---|
| 3355 | 1509 | Grey Scale for Staining | IA |
| 3355 | 1511 | Grey Scale for Staining | IC |
| 3355 | 1513 | Grey Scale for Staining | IE |
| 2198 | 3305 | Grey Scale for Change in Colour | VY |
| 2197 | 3305 | Grey Scale for Change in Colour | VX |
| 2196 | 3305 | Grey Scale for Change in Colour | VW |
| 2195 | 3305 | Grey Scale for Change in Colour | VV |
| 2194 | 3305 | Grey Scale for Change in Colour | VU |
| 2193 | 3305 | Grey Scale for Change in Colour | VT |
| 2192 | 3305 | Grey Scale for Change in Colour | VS |