MASK RULES OF INDONESIAN NATIONAL STANDARD FABRIC

Perajin produces batik masks in Sentra Batik Tradisiku Crafts, Bogor City, West Java, Thursday (1/10/2020). The National Standardization Agency (BSN) issued the specification of a sNI fabric mask that is divided into three types based on its use, including A type for general use, B type for the use of bacterial filtration, and C type for particle filtration use. ANTARA PHOTO/Yulius Satria Wijaya/aww.