Meetapparaten met gecertificeerde materiaalmonsters, uitsluitend te gebruiken voor het kalibreren van deze meetapparaten, zoals metalen, legeringen, chemische preparaten, mineralen, meststoffen, botanische producten, gassen, biologische preparaten, carbiden, glas, cement, sporenelementen, radioactieve stoffen (met name plutonium, uranium, thorium, caesium, americium, radium, europium), molybdeen, isotoop-producten, referentiebrandstoffen, producten van rubber
Measuring apparatus comprising/containing certified samples of materials, for use exclusively for the calibration of these measuring devices, including metals, alloys, chemicals, minerals, fertilisers, botanical products, gases, biological preparations, carbides, glass, cements, trace elements, radioactive materials (in particular plutonium, uranium, thorium, caesium, americium, radium and europium) molybdenum, isotopic products, reference fuels, goods of rubbertmClass tmClass