Mahimman ƙimar tabbacin fashewa da ake buƙata don wuraren da hydrogen yakamata ya zama IIC T1.
Sakamakon haka, duk wani samfurin da aka ƙididdige IIB akan rukunin yanar gizon ya kasa cika waɗannan ƙa'idodi. Rarraba gaurayawan abubuwan fashewar iskar gas a cikin muhalli sun fada cikin IIA, IIB, da kuma nau'ikan IIC. An ƙayyade rarrabuwa ta hanyar matsakaicin samar da m gas. Matsayin IIC ya wuce na IIB, bayar da ingantaccen aminci.