General Information:

ISO/IEC 17025 and ISO 17034 Saybolt (ASTM D6045, D156) Colour Reference Standards are for routine calibration of colour measuring instruments and verification of test data. These colour standards are dual UKAS certified to the International Standards ISO/IEC 17025 and ISO 17034.
Saybolt (ASTM D6045, D156) Colour Reference Standards are typically used in, but not limited to, the analysis of a wide variety of petroleum products such as undyed motor and aviation gasoline, aviation turbine fuels, naphthas, kerosine, pharmaceutical white oils, diesel fuel oils, heating oils, and lubricating oils by the automatic tristimulus method.
The manufacturing, testing and certification of ARO's Saybolt Colour Reference Standards has been performed in accordance with ARO's accreditation to ISO 17034, UKAS CAB No. 27393 and Tintometer's accreditation to ISO/IEC 17025, UKAS CAB No. 0630. Typically used in, but not limited to, ASTM D156, ASTM D6045, DIN 51411, JIS K2580, AFNOR M07-003.

•Manufactured and characterized in strict accordance to ISO/IEC 17025 and ISO 17034
•Highest level of accreditation guarantee, providing the most credible certified data available worldwide
•Typically used in, but not limited to, the analysis of undyed motor and aviation gasoline, aviation turbine fuels, naphtha, kerosine, pharmaceutical white oils, diesel fuel oils, heating oils, and lubricating oils
•Supplied in tamper-evident glass packaging, providing assurance of sample integrity
•Fully traceable to international standards
•Supplied in tamper-evident glass packaging, providing assurance of sample integrity
•Available as a single 500 mL pack
•Manufactured in the United Kingdom by ARO Scientific Ltd
•18-month shelf life

Determination of the colour of is used mainly for manufacturing control purposes and is an important quality characteristic because colour is readily observed by the user of the product. When the colour range of a particular product is known, a variation outside the established range may indicate possible contamination. There are several other colour scales that can be used for the determination of colour, these include Gardner Colour, Platinum-Cobalt Colour and Saybolt Colour. We can supply colour reference standards for use in the colour scales listed.  
Our commitment to quality and our accreditations demonstrates that we have rigorous quality systems in place that allow us to provide customers with the highest quality products possible, which are accepted globally. In addition, our Combined UKAS and ILAC-MRA Mark demonstrates that the accreditation we hold is recognized under the International Laboratory Accreditation Cooperation (ILAC) Mutual Recognition Arrangement, our certificates are accepted around the world.

Downloads:
ARO Scientific SDS-0001 Total Acid Number5.pdf