Product  Textiles — Polypropylene (PP)/High-Density Polyethylene (HDPE) Laminated Woven Sacks for Mail Sorting, Storage, Transport and Distribution  Certification Body  Bureau of Indian Standards   Indian Standard  IS 17399: 2020  Scope  This standard prescribes requirements for polypropylene (PP) and high-density polyethene (HDPE) laminated woven sacks for mail sorting, storage, transport and distribution.