Certifications and compliances
- ASTM standard E-119
- NFPA 251
- UL classification per UL standard 1479
- NAVSEA approval – Electric Plant Installation Standard Methods No. S9300- AW-EDG-010/EPISM – TWFS/TWBS assembliesThru-Wall barriers restrict the entrance of contaminants through cable/conduit penetrations into clean areas, and can be used with most types of power, instrument, and control cables as well as conduits.