Description: Top level of a 3-level manufacturer-specific product hierarchy; Name: manufacturer product master
Description: Top level of a 3 level manufacturer specific product hierarchy; Name: Manufacturer product root
Description: norm/stipulation describing the explosion protection. The explosion protection type, the device category, the temperature class as well as the device / explosion group are taken from this norm. The type and number of the norm/stipulation with issue year and issue month must be given; Name: Reference norm of the explosion protection