... , pass oeko-tex 100 class II, healthy to human body Flame retardant workwear free of formaldehyde,the formaldehyde is less than 25ppm ... EN470,EN531,EN533,EN532,EN11611,EN11612,IEC61482 etc. Use flame retardant zipper ,thread,Velcro,reflective tape (EN471) and so on. Accepting workwear products ...