Historical
IEC 60335-2-31 Ed. 4.2 b:2009
Household and similar electrical appliances - Safety - Part 2-31: Particular requirements for range hoods and other cooking fume extractors
"Deals with the safety of electric range hoods intended to be installed above household cooking ranges, hobs, and similar cooking appliances, their rated voltage being not more than 250 V. This consolidated version consists of the fourth edition (2002), its amendment 1 (2006) and its amendment 2 (2008). Therefore, no need to order amendments in addition to this publication. "
International Electrotechnical Commission [iec]