... YYGX6001,YYGX6002,YYGX60012600μm±10% Non-sterilemedical Laser optical fiber YYGX200F,YYGX2001F,YYGX2002F,YYGX20012F200μm±10%YYGX400F, ... Medical laser optical fiber10.Reducing substances :potassium permanganate consuming volume difference between test liquid and comparing liquid Should not ... pH value: pH value difference between test liquid and comparing liquid Should not be greater than 112.heavy ...