Amagwiritsidwa ntchito kudziwa mphamvu ya impact (Izod) ya zinthu zopanda chitsulo monga pulasitiki yolimba, nayiloni yolimbikitsidwa, pulasitiki yolimbikitsidwa ndi ulusi wagalasi, zoumba, miyala yopangidwa, zida zamagetsi zapulasitiki, zinthu zotetezera kutentha, ndi zina zotero. Chilichonse chomwe chimagwiritsidwa ntchito ndi mtundu wake chili ndi mitundu iwiri: mtundu wamagetsi ndi mtundu wa pointer dial: makina oyesera impact dial ali ndi mawonekedwe olondola kwambiri, kukhazikika bwino komanso mulingo waukulu woyezera; makina oyesera impact amagetsi amagwiritsa ntchito ukadaulo woyezera ngodya yozungulira, kupatulapo. Kuphatikiza pa zabwino zonse za mtundu wa pointer dial, imathanso kuyeza ndikuwonetsa mphamvu yosweka, mphamvu ya impact, ngodya yokwezedwa, ngodya yokweza, ndi mtengo wapakati wa gulu; ili ndi ntchito yokonza yokha mphamvu yotayika, ndipo imatha kusunga ma seti 10 azidziwitso zakale. Makina oyesera awa angagwiritsidwe ntchito poyesa impact ya Izod m'mabungwe ofufuza zasayansi, makoleji ndi mayunivesite, mabungwe owunikira kupanga pamlingo uliwonse, mafakitale opanga zinthu, ndi zina zotero.
YYT255 Sweating Guarded Hotplate ndi yoyenera mitundu yosiyanasiyana ya nsalu, kuphatikizapo nsalu zamafakitale, nsalu zosalukidwa ndi zipangizo zina zosiyanasiyana zosalala.
Ichi ndi chida chomwe chimagwiritsidwa ntchito poyesa kukana kutentha (Rct) ndi kukana chinyezi (Ret) kwa nsalu (ndi zina) zinthu zosalala. Chida ichi chimagwiritsidwa ntchito kukwaniritsa miyezo ya ISO 11092, ASTM F 1868 ndi GB/T11048-2008.