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PCRM (Primary Certified Reference Material)
PCRM – (Primary Certified Reference Material) - This is similar to a NIST SRM in that it is a reference material that is traced back to the SI. IV created a line of trademarked products to fill a gap in SRM availability that affects our traceability for certain elements, as no NMIs provided SI traceable solutions for them – currently Os and Ir PCRMs are available in our catalog, with Ru forthcoming.