Product Information :

These are a series of 8 wool fabrics dyed with specified blue dyes to give blue wool cloths ranging from very low light fastness, to very high light fastness. They form a numerical scale of 1 to 8 where 1 has the poorest light fastness to 8 which has the best light fastness. This allows fabrics to be graded, using a grey scale for assessment of changing in color, for correlation with performance in use. They are used in the ISO 105 B series of test.

Product	Description
No.1	SDC Blue Wool No.1, size of 15x25cm
No.2	SDC Blue Wool No.2, size of 15x25cm
No.3	SDC Blue Wool No.3, size of 15x25cm
No.4	SDC Blue Wool No.4, size of 15x25cm
No.5	SDC Blue Wool No.5, size of 15x25cm
No.6	SDC Blue Wool No.6, size of 15x25cm
No.7	SDC Blue Wool No.7, size of 15x25cm
No.8	SDC Blue Wool No.8, size of 15x25cm