Grey Scales (Gray Scales) are used for assessing colour change and staining during colour fastness testing. Both scales are used for visual assessment to enable you to specify a rating from 1 to 5, with 5 being 'good' and 1 being 'poor'.
Why choose James Heal?
For over 40 years, we've supplied test materials to the highest standard of consistency, reliability and performance.
Buy your test materials directly from James Heal, with secure online card payments or PayPal, for less hassle and faster delivery.
Two in-house laboratories to check every batch. Zero tolerance to non-conformance: product is not released unless it meets the specification.
Flexible pack sizes
Our extensive range means there will be a size suited to your level of testing. Pre-cut samples are available for a lot of our products, eliminating preparation time.