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Is there any traceability for Reagecon Hazen standards?

April 26, 2017hazen reagecon Standards traceability

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Is there any traceability for Reagecon Hazen standards?

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There is no primary reference standard for Hazen colour standards. The preparation and use of Hazen standards is covered in several standards, namely ISO 2211:1973, ASTM D1209 and ISO 6271. Traceability is available for the UV spectrophotometer used in testing of Hazen standards (calibrated using NIST traceable filters).