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prEN 12255-15 rev
Wastewater treatment plants - Part 15: Measurement of the oxygen transfer in clean water in aeration tanks of activated sludge plants
DIN EN 12255-15 rev
Wastewater treatment plants - Part 15: Measurement of the oxygen transfer in clean water in aeration tanks of activated sludge plants
DIN CLC IEC/TR 62271-307
High-voltage switchgear and controlgear - Part 307: Guidance for the extension of validity of type tests of AC metal and solid-insulation enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV (IEC 17C/848/CD:2022); Text in German and English
DIN EN ISO 11970
Specification and qualification of welding procedures for production welding of steel castings (ISO/DIS 11970:2024); German and English version prEN ISO 11970:2024
DIN EN ISO 11641 rev
Leather - Tests for colour fastness - Colour fastness to perspiration
prEN ISO 11641 rev
Leather - Tests for colour fastness - Colour fastness to perspiration
DIN EN 13121-3
GRP tanks and vessels for use above ground - Part 3: Design and workmanship; German and English version prEN 13121-3:2022
EN 12663-2/FprA1
Railway applications - Structural requirements of railway vehicle bodies - Part 2: Freight wagons
prEN ISO 11970
Specification and qualification of welding procedures for production welding of steel castings (ISO/DIS 11970:2024)
FprEN ISO 20182
Refractory test-piece preparation - Gunning refractory panels by the pneumatic-nozzle mixing type guns (ISO/FDIS 20182:2024)
