Bentenipun antarane wates resistance geni saka lawang geni: lawang geni dipérang dadi A, B, C, kang integritas resistance geni saka lawang geni, sing, wektu resistance geni, standar saiki Nyegah geni. wektu ora kurang saka 1.5 jam, kelas B ora kurang saka 1.0 jam, kelas C ora kurang saka 0.6 jam.

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