He pai mo te whakamahi i roto i te IIA,IIB,IIC Pahūtanga hau kino rohe1 me te rohe2.
Puehu ngiha IIIA,IIIB,IIIC rohe 21 me te rohe 22
Tohu o mua:
Ex db IIC Gb,Ex tb IIIC Db.
Tiwhikete ATEx. Nama:SEV 20 ATEX 0471 U
Tiwhikete IECEx. Nama: IECEx SEV 20.0016U