Vacuum cleaners for household use - Part 1: Dry vacuum cleaners - Methods for measuring the performance (IEC 60312-1:2010, mod.+ A1:2011, mod.) (english version)
Liquid pumps and installation - General terms, definitions, quantities, letter symbols and units - Part 1: Liquid pumps (multilingual version: en/fr/ru/de) (ISO 17769-1:2012)
Vacuum cleaners for household use -- Part 1: Dry vacuum cleaners - Methods for measuring the performance (IEC 60312-1:2010, modified + A1:2011, modified) (english version)