STM PDF

Optics and photonics - Optical materials and components - Test method for striae in infrared optical materials. Original standard ISO 19741-2025 in PDF full version. Additional info + preview on request

Document status: Active

Optics and photonics - Optical materials and components - Test method for bubbles and inclusions in infrared optical materials. Original standard ISO 19742-2018 in PDF full version. Additional info + preview on request

Document status: Active

Solid biofuels - Determination of content of heavy extraneous materials larger than 3,15 mm. Original standard ISO 19743-2017 in PDF full version. Additional info + preview on request

Document status: Replaced by St ISO 19743-2026

Test conditions for numerically controlled broaching machines - Testing of accuracy - Vertical surface type broaching machines. Original standard ISO 19744-2020 in PDF full version. Additional info + preview on request

Document status: Active

Determination of urea content in urea-based fertilizers by high performance liquid chromatography (HPLC). Original standard ISO 19746-2017 in PDF full version. Additional info + preview on request

Document status: Active

Fertilizers and soil conditioners - Determination of monosilicic acid concentrations in nonliquid fertilizer materials. Original standard ISO 19747-2020 in PDF full version. Additional info + preview on request

Document status: Active