STM PDF

Petroleum products and lubricants - Determination of cone penetration of lubricating greases and petrolatum. Original standard ISO 2137-2007 in PDF full version. Additional info + preview on request

Document status: Replaced by St ISO 2137-2020

Uncrewed aircraft systems - Part 3- Operational procedures. Original standard ISO 21384-3-2026 in PDF full version. Additional info + preview on request

Document status: Active

Hard coal and coke - Guidance to the inspection of mechanical sampling systems. Original standard ISO 21398-2007 in PDF full version. Additional info + preview on request

Document status: Replaced by St ISO 21398-2019

Milk, milk products, infant formula and adult nutritionals - Determination of chloride - Potentiometric titration method. Original standard ISO 21422-2018 in PDF full version. Additional info + preview on request

Document status: Active

Workplace atmospheres - Determination of inorganic acids by ion chromatography - Part 1- Non-volatile acids (sulfuric acid and phosphoric acid). Original standard ISO 21438-1-2007 in PDF full version. Additional info + preview on request

Document status: Replaced by St ISO 21438-1-2022

Workplace atmospheres - Determination of inorganic acids by ion chromatography - Part 2- Volatile acids, except hydrofluoric acid (hydrochloric acid, hydrobromic acid and nitric acid). Original standard ISO 21438-2-2009 in PDF full version. Additional info + preview on request

Document status: Replaced by St ISO 21438-2-2024