Grey Scales
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      Do you offer Grey Scales compliant with GB-T 250 and 251?

      Yes, the ISO Grey Scales that James Heal provide are compliant with GB-T standards.

      • The GB-T 250 standard is based on ISO 105-A02.
      • The GB-T 251 standard is based on ISO 105-A03.

      To order (stock code):

      • ISO 105-A02 Assessing change in colour (766-200)
      • ISO 105-A03 Assessing Staining (766-201)