The human eye is capable of differentiating several million colours, despite this subjective visual evaluation, when used for quality control purposes, is no longer preferred as it suffers from a lack of real quantifiable data and inconsistent documentation.
Since the early 1930’s many scientific measuring techniques have been developed by National Standards Organisations, among them the CIE (International Committee of Light), based on a logical numeric scaling where physical parameters and calculations have been clearly defined, universally accepted and adopted. As a result, many methods are today perfectly proven, and governed by major standards such as ASTM, BS, DIN, or ISO etc.
These are available in 3 versions to accommodate both large and small components. The portable version is ideal for customer presentations or for on-site discussions where such facilities would not normally be available.
These Liquid Colour Standards are designed are intended for colour checking individual measuring instruments, comparison between instruments and other laboratories.
RAL Colour charts offer a quick easy method of comparing samples against known standards, additional benefits can be obtained when used under standard lighting conditions of a light cabinet.
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