Equip your laboratory with a comprehensive range of Colour Reference Standards Paragon. Technicians use these fluids to calibrate and verify color measuring instruments. Paragon accredits these materials under strict ISO 17025 and ISO 17034 guidelines. They also certify other specific materials under ISO 9001 quality systems. The dual-accredited ISO line includes highly precise ASTM Colour Standards. These specific standards perfectly comply with ASTM D1500 and ASTM D6045. The collection also features Gardner Colour Standards for ASTM D1544 and D166. Finally, you can confidently select Saybolt Colour Standards for ASTM D156 and D6045 testing.