Certificates of Conformity require the supplier to have good quality controls, traceability of materials and well maintained records of appropriate batch tests. In most cases Certificates simply require batch and cure date information for traceability down the supply chain, but there are limits to the information available without agreeing your requirements prior to manufacture.
Welcome to the North Pole AKA Wolverhampton
How to... 7701 - Honeycomb matting and Edges.
Commemoration of Armistice Day
Clarifying Material Certification Options for Rubber Materials
The use of Rheometers in Rubber Compound Quality Control