Belarus standards PDF
Water quality. Multi-compound class methods. Criteria for the identification of target compounds by gas and liquid chromatography and mass spectrometry. Original standard BS EN ISO 21253-1-2019 in PDF full version. Additional info + preview on request
Document status: Active
Water quality. Multi-compound class methods. Criteria for the quantitative determination of organic substances using a multi-compound class analytical method. Original standard BS EN ISO 21253-2-2019 in PDF full version. Additional info + preview on request
Document status: Active
Lasers and laser-related equipment. Test methods for laser-induced damage threshold - Definitions and general principles. Original standard BS EN ISO 21254-1-2011 in PDF full version. Additional info + preview on request
Document status: Replaced by STB BS EN ISO 21254-1-2025
Lasers and laser-related equipment. Test methods for laser-induced damage threshold. Threshold determination. Original standard BS EN ISO 21254-2-2011 in PDF full version. Additional info + preview on request
Document status: Active
Lasers and laser-related equipment. Test methods for laser-induced damage threshold. Assurance of laser power (energy) handling capabilities. Original standard BS EN ISO 21254-3-2011 in PDF full version. Additional info + preview on request
Document status: Active
Stationary source emissions. Determination of the mass concentration of dinitrogen monoxide (N2O). Reference method. Non-dispersive infrared method. Original standard BS EN ISO 21258-2010 in PDF full version. Additional info + preview on request
Document status: Active