Bawul ɗin NSEN kwanan nan ya yi gwajin feshi mai tsaka-tsaki na bawul ɗin, kuma ya yi nasarar cin gwajin a ƙarƙashin shaidar TUV. Fentin da aka yi amfani da shi don bawul ɗin da aka gwada shine JOTAMASTIC 90, gwajin ya dogara ne akan daidaitaccen ISO 9227-2017, kuma tsawon lokacin gwajin yana ɗaukar awanni 96.

A ƙasa zan gabatar da taƙaitaccen bayani game da manufar gwajin NSS,

Gwajin feshin gishirin yana kwaikwayon yanayin teku ko yanayin yankunan da ke da danshi mai gishiri, kuma ana amfani da shi don tantance juriyar feshin gishirin ga samfura, kayan aiki da kuma matakan kariyarsu.

Ma'aunin gwajin feshi na gishiri ya fayyace yanayin gwaji a sarari, kamar zafin jiki, danshi, yawan sinadarin sodium chloride da ƙimar pH, da sauransu, sannan kuma ya gabatar da buƙatun fasaha don aikin ɗakin gwajin feshi na gishiri. Hanyoyin da ake bi wajen tantance sakamakon gwajin feshi na gishiri sun haɗa da: hanyar yin hukunci kan ƙima, hanyar yin hukunci kan auna nauyi, hanyar yin hukunci kan kamannin lalaci, da kuma hanyar yin nazarin kididdigar bayanai kan lalata. Kayayyakin da ke buƙatar gwajin feshi na gishiri galibi wasu samfuran ƙarfe ne, kuma ana bincika juriyar tsatsa na samfuran ta hanyar gwaji.

Gwajin muhallin fesa gishirin da aka yi kwaikwayi da roba shine a yi amfani da wani nau'in kayan aikin gwaji tare da wani akwatin gwajin fesa gishiri mai girma, a cikin girmansa, ana amfani da hanyoyin roba don ƙirƙirar yanayin fesa gishiri don tantance ingancin juriyar fesa gishirin samfurin. Idan aka kwatanta da yanayin halitta, yawan gishirin chloride a cikin yanayin fesa gishirin na iya ninka sau da yawa ko sau goma na yawan fesa gishirin na yanayin halitta gabaɗaya, wanda ke ƙara yawan tsatsa sosai. Ana gudanar da gwajin fesa gishirin na samfurin kuma ana samun sakamakon. Hakanan ana gajarta lokacin sosai. Misali, idan an gwada samfurin samfurin a cikin yanayin fallasa na halitta, yana iya ɗaukar shekara 1 don jira tsatsa, yayin da gwajin a ƙarƙashin yanayin yanayin fesa gishirin da aka yi kwaikwayi da roba yana buƙatar awanni 24 kawai don samun sakamako makamancin haka.

Gwajin fesa gishiri mai tsaka tsaki (Gwajin NSS) shine hanyar gwajin tsatsa da sauri da aka fi amfani da ita. Yana amfani da maganin gishirin sodium chloride 5% na ruwa, ana daidaita ƙimar pH na maganin a cikin kewayon tsaka tsaki (6-7) azaman maganin fesawa. Zafin gwajin shine 35℃, kuma ana buƙatar ƙimar narkewar gishirin ya kasance tsakanin 1~2ml/80cm²·h.