Subject 1091B (1091)

Bulletin Dated: April 3, 2014

Summary of Topics

This bulletin announces the availability of the Outline of Investigation for System Control Ball Valves for Fire Protection Service, UL 1091B.

Subject 1091 (In reply, refer to Subject 1091)

Bulletin Dated: April 19, 2004

SUMMARY OF TOPICS

This bulletin proposes the following changes in requirements:

The attached comment matrix documents the comments received on the December 19, 2003 proposal bulletin and the responses to these comments. At the direction of the STP Chair, responsibility for developing responses to the comments received was assigned to the UL's technical representative on the STP, George Laverick, since the proposals were submitted by UL.

COMMENTS DUE: May 17, 2004

Subject 1091 (In reply, refer to Subject 1091)

Bulletin Dated: December 19, 2003

SUMMARY OF TOPICS

This bulletin proposes the Sixth Edition of UL 1091. The following changes in the requirements are being proposed:

This proposed new edition is a periodic re-issuance to ensure that UL's Standards remain up to date with regard to format and editorial issues such as numbering, pagination, and cross-referencing. This proposed new edition also includes a revision to the marking requirements.

COMMENTS DUE: February 4, 2004