2020BS ISO 1409:2020 Plastics/rubber. Polymer dispersions and rubber latices (natural and synthetic). Determination of surface tension
2007BS ISO 1409:2007 Plastics/rubber - Polymer dispersions and rubber latices (natural and synthetic) Determination of surface tension by the ring method
2007BS ISO 1409:2006 Plastics/rubber. Polymer dispersions and rubber latices (natural and synthetic) Determination of surface tension by the ring method