Technical rule
[CURRENT]
2021-03
VDI 4223:2021-03
Quality assurance - Requirements on test laboratories and inspection bodies (Type A) in immission control: evaporative cooling systems, cooling towers, and wet separators
This standard details the requirements of DIN EN ISO/IEC 17025 for testing laboratories performing microbiological examinations of process water (sampling and laboratory testing) on evaporative ...
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