Standard 768, Edition 8
UL 768

Standard for Combination Locks

UL Bulletin Edition 8 Published Date: October 17, 2007 Last Revision: August 22, 2023


Summary of Topics m0687_13_20071710_sum.html

Subject 687 (140, 291, 437, 608, 680, 768, 771, 786, 887, 1034)

Bulletin Dated: October 17, 2007


The following topics were discussed at the meeting:

1. UL 291 Proposals - a) Addition of Secondary Lock to 13.1.2; b) Types and Thickness of Steel for Level 1 Safes; c) Equivalent Safe Materials

2. Secondary Locks

3. Considering Ultimate Tensile Strength Versus Other Parameters

4. Defining Comparison Test Results to 1 Inch Thick Steel with an Ultimate Tensile Strength of 50,000 PSI

5. Lock Bumping

6. UL 687 Requirements for Burglary Resistant Safes

7. Further Defining Anchoring Methods for TL-15 and Deposit Safes

8. Defining Continuous Welds

9. Alternate Consideration for Conduit Penetrations

10. Advancing UL 140 to ANSI Ballot

11. Task Group Reports

12. Additional Agenda Item - Secondary Safes

13. Additional Agenda Item - Restructuring of STP 687

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