1
Chemicals used in industry and science; chemical ingredients for use in air purifying apparatus and apparatus for detecting and analyzing gases and vapors, electrolyte for batteries, chemical preparations for fog-proofing lenses and other transparent materials; fire extingusing compostions; compounds and catalysts containing alkali metals and/or boron for use in the manufacture of industrial chemicals and pharmaceuticals
9
Scientific, electric, optical, weighing, measuring, singalling, checking (supervision), life-saving and teaching apparatus and instruments; electrical apparatus and instruments for mining and industrial purposes; batteries, and parts thereof, apparatus for charging, filing and maintaining batteries; electrical equipment testing apparatus; communication apparatus and instruments for mining and industrial purposes; apparatus and instruments for detecting, measuring, analyzing and recording fluid, air, gas, mist and dust, poison testing apparatus; hazardous material leak detectors; fire and danger alarms; apparatus, instruments and equipment for mining and work protection, breathing apparatus and respiratory protection apparatus and equipment, respiratory filters, compressed-air respirators; telephone and microphone headsets for respiratory masks, breathing apparatus regulators, exhaust air distributors, measuring apparatus and control valves; protective goggles and spectacles and cases therefore, protective masks, hoods and shields and cleaning equipment for such goggles, masks and shields; safety clothing, protective head guards, protective helmets and mask-helmet combinations; hand protectors, kneepads, sleeves, leg protectors and protective trousers, safety harnesses, eyeglass cords, reflector belts, hearing protectors; fire extinguishing apparatus, fire blankets and cases therefore; data processing equipment and computers; recorded software, in particular for use in recording and monitoring hazardous conditions
25
Working clothes; belts (clothing); mittens, gloves, finger guards, aprons, gaiters
37
Repair, maintenance and installation of instruments and apparatus
42
Engineering relating to detection and monitoring of hazardous conditions, environmental monitoring, and personal and industrial safety; consultancy relating to detection and monitoring of hazardous conditions, environmental monitoring