Interesting Links An interesting collection of links rounds off our information offer. Definition of "weight" in Wikipedia DQS GmbH (German Society for the Certification of Management Systems) DAkkS (German Accreditation Authority) EA (European co-operation for Accreditation) IAF (International Accreditation Forum) ILAC (International Laboratory Accreditation Cooperation) DKD (German Calibration Service) PTB (Federal Physical-Technical Institute) Catalog - overview E0 Primary mass standards E1 Reference mass standards E2 High precision weights F1 Analytical weights F2 Analytical weights M1 Precision weights M2 Precision weights M3 Commercial weights Accessories