Ọpụ: Akara maka akụrụngwa eletrik eji na gburugburu gas na-agbawa agbawa;
db: Ụdị nchekwa anaghị egbochi ọkụ;
eb: Ụdị nchekwa na-abawanye nchekwa;
IIC: Kwesịrị ekwesị maka gburugburu nwere gas IIC na vapors;
T6: Nke okpomọkụ nhazi ọkwa bụ T6, na kacha elu okpomọkụ nke akụrụngwa adịghị gafere 85 ℃;
Gb: Ọkwa nchebe akụrụngwa, adabara Mpaghara 1 na 2.