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)