Issued to: Hilti Construction Chemicals, Div of Hilti Inc. 5400 S 122nd East Ave Tulsa, OK 74146 This is to certify that Fill, Void or Cavity Materials representative samples of CFS-BL Firestop Block Have been investigated by Underwriters Laboratories in accordance with the Standard(s) indicated on this Certificate. Standard(s) for Safety: ANSI/UL 1479, "Fire Tests of Through-Penetration Firestops," CAN/ULC-S115, "Standard Method of Fire Tests of Firestop Systems." Third Edition revised March 1, 2010 Additional Information: See UL On-line Certification Directory at WWW.UL.COM for additional information. CFS-BL Firestop Block for use in Through-Penetration Firestop Systems as currently described in the UL Fire Resistance Directory.