STM PDF

Nanotechnologies - Air filter media containing polymeric nanofibres - Specification of characteristics and measurement methods. Original standard ISO TS 21237-2020 in PDF full version. Additional info + preview on request

Document status: Active

Fine bubble technology - Cleaning applications - Part 1- Test method for cleaning salt (NaCl)-stained surfaces. Original standard ISO TS 21256-1-2020 in PDF full version. Additional info + preview on request

Document status: Active

Fine bubble technology - Cleaning applications - Part 4- Test method for oil removal from polyester-based textile. Original standard ISO TS 21256-4-2023 in PDF full version. Additional info + preview on request

Document status: Active

Soil quality - Leaching procedures for subsequent chemical and ecotoxicological testing of soil and soil materials - Part 1- Batch test using a liquid to solid ratio of 2 l/kg dry matter. Original standard ISO TS 21268-1-2007 in PDF full version. Additional info + preview on request

Document status: Replaced by St ISO 21268-1-2019

Soil quality - Leaching procedures for subsequent chemical and ecotoxicological testing of soil and soil materials - Part 4- Influence of pH on leaching with initial acid/base addition. Original standard ISO TS 21268-4-2007 in PDF full version. Additional info + preview on request

Document status: Replaced by St ISO 21268-4-2019

Light and lighting - Commissioning of lighting systems in buildings. Original standard ISO TS 21274-2020 in PDF full version. Additional info + preview on request

Document status: Active