Product Specifications
Manufactured from ceramic, for stability and durability, they are ideal
for use in Quality Control Procedures to BS EN ISO 9000. A Calibration
Service for our standards under UKAS Accreditation is also provided.
Basic Range
CERAM Colour Standards Series II (CCSSII)
Internationally recognised as the leading set of standards for checking
the consistency of operation and accuracy of colour measuring instruments
over long periods, CCSII comprises 12 glazed ceramic tile standards.
3 Neutral Grey Standards - for checking photometric linearity
7 Chromatic Standards - for checking spectral response
2 Colour Difference Standards - providing a direct check on colour difference
measurement for repeatability purposes
To ensure that the standards fit precisely to the aperture of an instrument,
production is carefully controlled to preserve a smooth, very slightly
convex surface.
The CCSII are now available in two basic sizes - 10cm x 10cm and 5cm
x 5cm or can be made to customers specific specifications.
Neutral Standards
We now stock a range of greys, starting with White and dropping down to
Black. The approximate Reflectance values (0/45) are;
(White) 88%, 80%, 70%,
(Pale Grey) 61%, 50%, 40%, 34%,
(Mid Grey) 25%,
(Deep Grey) 5%,
(Black) 0.5%.
A special opaque Black Glass is also available with Reflectance (0/45
) of 0%
The White can be used to check the stability of the standard provided
with an instrument, in a Quality Assurance procedure, while the 50% Grey
can be used in deriving the correction for sample absorption error in
single beam spectrophotometry.
Pastel Standards
We have a stock of Pastel Colours for applications where the CCSII may
provide too rigorous a test for the instruments in use.
The colours are Pastel shades of Pink, Yellow, Green, Blue and Lilac.
Custom Standards
If you have a requirement for standards to fulfil a specific role in your
activities, we can produce colours to order,
Examples of applications are:
- Bathroom Colours
- Tomato Paste Reference for Europe
- Calibration Standards for Textiles
- Biscuit Standard
- Road Marking
Matt Standards
Our standards are normally supplied with a gloss surface. However we have
a treatment which produces a very effective and uniform Matt surface.
The advantage of this is that both Specular Included and Specular Excluded
measurements give essentially the same result, simplifying measurement.
The surface remains durable enough to be cleaned if it becomes soiled.
Size and Shape
The normal sizes for standards are currently 5cm2 or 10cm2, however, standards
can be made to customers specifications of size and shape.
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