½ñÌìÔÚ¿´UL²âÊÔ±ê׼ʱ¿´µ½£¬Ëµ¸ß·Ö×Ó²ÄÁÏÈç¹ûº¬ÓбȽϸߵÄÌ¿ºÚ»òÕßÊDzÄÁÏÖÐÓнðÊô³É·Ö£¬Ôò²»ÊÊÒË×öºìÍâ·ÖÎö£¬ÎªÊ²Ã´ÄØ£¿Ô»°ÈçÏ£ºwhen infrared analysis is not effective¡¡£¬elastomers and materials with high carbon black or metallic content are characterized by PGC