Takaitaccen Bayani:

Yanayin Sabis na al'ada
Tsawon tsayi 1000-3000m;
Yanayin zafin jiki bai fi + 40 ″ C ba, bai ƙasa da -30C ba (yankin mai girma da sanyi ba ƙasa da - 40C);
Iskar ba ta wuce 700Pa;(daidai da saurin iska 34ms/s);
Ƙarfin girgizar ƙasa bai wuce digiri 8 ba;
Girman kankara bai fi 10 mm girma ba;
Shigar da wurin bai kamata ya fashe cikin sauƙi kayan haɗari, ruɓar sunadarai da girgizar tashin hankali ba;
ginshiƙi mai keɓewa mai datti a cikin ɗa: Nau'in gama gari shine aji 0, kare nau'in ƙazanta azaman aji na II.
Wannan silsilar keɓancewar canjin yana cika da ''GB 1985-89 musanya babban matsin lamba yana hana sauyawa''
IEC129 (1984> (musanya mai rufe maɓalli tare da haɗa zagaye na juyawa) tare da IEC694 (1980) 《na'urorin sauya matsa lamba mai ƙarfi tare da sarrafa kayan aiki don yin hukunci da abu, buƙatun iri-iri gabaɗaya.