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ISO 5149-3 AMD 1
Refrigerating systems and heat pumps - Safety and environmental requirements - Part 3: Installation site - Amendment 1: Update of the requirements for machinery rooms and emergency mechanical ventilation
Edition
2021-03
ISO 11296-4 AMD 1
Plastics piping systems for renovation of underground non-pressure drainage and sewerage networks - Part 4: Lining with cured-in-place pipes - Amendment 1: Updated definitions, marking requirements and procedure for alternative expression of flexural test results
Edition
2021-02
