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Optics and photonics. Optical materials and components. Test method for striae in infrared optical materials. Original standard BS ISO 19741-2018 in PDF full version. Additional info + preview on request

Document status: Withdrawn

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

Document status: Active

Test conditions for numerically controlled broaching machines. Testing of accuracy. Vertical surface type broaching machines. Original standard BS 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 BS 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 BS ISO 19747-2020 in PDF full version. Additional info + preview on request

Document status: Active