【ing】評論
參考：Cohens_Pathways_of_the_Pulp_10thDichlorodifluoromethane (ddM) (−50° C) is a compressed refrigerant spray that can also be sprayed onto a cotton pledget for cold testing. 可知此為cold test 的一種方式 >>（Ｂ）錯誤 cold test比EPT可信度高補充 可以作為cold test的方式：ethyl chloride (−41° C)、carbon dioxide snow (CO2, −78° C)、 dichlorodifluoromethane (−40° C) 、cold stick