Grey Scales

  • Price: Tk. 8,500
    FREE Cash On Delivery Available
    Delivery in 1 - 2 business days
    • Posted
    • Sat, Aug 20 @ 11:56am
    • Ad reference
    • 2036310
  •   Description
DC Grey Scale for Change in Colour 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. More Detail Please Call Us Contact Parson – Mr Sagar Debnath Cell Phone-01777833865,01680179106