2020DIN ISO 127:2020 Rubber, natural latex concentrate - Determination of KOH number (ISO 127:2018)
2014DIN ISO 127:2014 Rubber, natural latex concentrate - Determination of KOH number (ISO 127:2012)
2008DIN ISO 127:2008 Rubber, natural latex concentrate - Determination of KOH number (ISO 127:1995 + Amd. 1:2006);English version of DIN ISO 127:2008-06