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UL Standards Update: January 1-15

Underwriters Laboratories has announced the availability of the following standards, revisions and bulletins.  For additional information regarding the standards listed below, please visit their website at www.ul.com.

Revisions:

UL 429 – Standard for Electrically Operated Valves
Revision dated January 6, 2010

UL 609 – Standard for Local Burglar Alarm Units and Systems
Revision dated January 6, 2010

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VSWR and its Effects on Power Amplifiers

Voltage Standing Wave Ratio results from an impedance mismatch between a source (an amplifier) and a load (test application). This mismatch can influence the performance of the source.

UL 636 – Standard for Holdup Alarm Units and Systems
Revision dated January 6, 2010

UL 639 – Standard for Intrusion-Detection Units
Revision dated January 11, 2010

UL 745-2-3 – Particular Requirements for Grinders, Polishers and Disk-Type Sanders
Revision dated January 13, 2010

UL 745-2-30 – Particular Requirements for Staplers
Revision dated January 13, 2010

UL 873 – Standard for Temperature-Indicating and -Regulating Equipment
Revision dated January 6, 2010

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UL1023 – Standard for Household Burglar-Alarm System Units
Revision dated January 11, 2010

UL 1037 – Standard for Antitheft Alarms and Devices
Revision dated December 31, 2009

UL 1236 – Standard for Battery Chargers for Charging Engine-Starter Batteries
Revision dated January 14, 2010

UL 1598 – Luminaires
Revision dated January 11, 2010

UL 1610- Standard for Central-Station Burglar-Alarm Units
Revision dated January 11, 2010

UL 1635 – Standard for Digital Alarm Communicator System Units
Revision dated January 5, 2010

UL 2388 – Standard for Flexible Lighting Products
Revision dated January 11, 2010

UL 60745-1 – Hand-Held Motor-Operated Electric Tools – Safety – Part 1: General Requirements
Revision dated January 13, 2010

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