Specifications include, but are not limited to: A. Products: Firestopping materials shall be manufactured and/or supplied by: 1. Hilti, Inc. 2. Johns Manville. 3. Nelson Firestop Products. 4. Specified Technologies Inc. 5. 3M; Fire Protection Products Division. 6. Tremco; Sealant/Weatherproofing Division. A. Materials shall be in the form of caulk, putty, sealant, intumescent material, wrap strip, fire blocking, ceramic wool and other materials required for the UL listed assemblies. These shall be installed in conjunction with sleeves and materials for fill and damming. 1. Building wires and cables rated 600 V and less. 2. Connectors, splices, and terminations rated 600 V and less. A. Copper Conductors: Comply with NEMA WC 70. B. Conductor Insulation: Comply with NEMA WC 70 for Types THHN-THWN and XHHW.