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UL Standards Update: May 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.

STANDARDS:

UL 20 – General-Use Snap Switches
New Edition dated May 10, 2010REVISIONS:

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A Dash of Maxwell’s: A Maxwell’s Equations Primer – Part One

Solving Maxwell’s Equations for real-life situations, like predicting the RF emissions from a cell tower, requires more mathematical horsepower than any individual mind can muster. These equations don’t give the scientist or engineer just insight, they are literally the answer to everything RF.

UL 621 – Standard for Ice Cream Makers
New Edition dated May 7, 2010

UL 1450 – Standard for Motor-Operated Air Compressors, Vacuum Pumps, and Painting Equipment
New Edition dated May 5, 2010

REVISIONS:

UL 123 – Standard for Oxy-Fuel Gas Torches
Revision dated April 30, 2010

UL 217 – Standard for Single and Multiple Station Smoke Alarms
Revision dated May 11, 2010

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UL 444 – Communications Cables
Revision dated April 30, 2010

UL 555 – Standard for Fire Dampers
Revision dated May 4, 2010

UL 555C – Standard for Ceiling Dampers
Revision dated May 4, 2010

UL 555S – Standard for Smoke Dampers
Revision dated May 4, 2010

UL 567 – Standard for Emergency Breakaway Fittings, Swivel Connectors and Pipe-Connection Fittings for Petroleum Products and LP-Gas
Revision dated May 5, 2010

UL 813 – Standard for Commercial Audio Equipment
Revision dated May 7, 2010

UL 858 – Standard for Household Electric Ranges
Revision dated May 7, 2010

UL 879 – Standard for Electric Sign Components
Revision dated May 7, 2010

UL 896 – Standard for Oil-Burning Stoves
Revision dated May 7, 2010

UL 1004 -2 – Standard for Impedance Protected Motors
Revision dated May 11, 2010

UL 1034 – Standard for Burglary-Resistant Electric Locking Mechanisms
Revision dated May 14, 2010

UL 1086 – Standard for Household Trash Compactors
Revision dated May 7, 2010

UL 1091 – Standard for Butterfly Valves for Fire-Protection Service
Revision dated May 12, 2010

UL 1123 – Standard for Marine Buoyant Devices
Revision dated May 7, 2010

UL 1449Standard for Surge Protective Devices
Revision dated May 3, 2010

UL 1561 – Standard for Dry-Type General Purpose and Power Transformers
Revision dated May 7, 2010

UL 1647 – Standard for Motor-Operated Massage and Exercise Machines
Revision dated April 30, 2010

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