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UL Standards Update: March 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 33 – Standard for Heat Responsive Links for Fire-Protection Service
New Edition dated March 9, 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 441 – Standard for Gas Vents
New Edition dated March 5, 2010

UL 1482 – Standard for Solid-Fuel Type Room Heaters
New Edition dated March 5, 2010

REVISIONS:

UL 66 – Fixture Wire
Revision dated March 4, 2010

UL 244A – Standard for Solid-State Controls for Appliances
Revision dated March 4, 2010

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UL 283 – Standard for Air Fresheners and Deodorizers
Revision dated March 5, 2010

UL 291 – Standard for Automated Teller Systems
Revision dated March 4, 2010

UL 295 – Standard for Commercial-Industrial Gas Burners
Revision dated March 5, 2010

UL 296 – Standard for Oil Burners
Revision dated March 5, 2010

UL 651 – Standard for Schedule 40 and 80 Rigid PVC Conduit and Fittings
Revision dated March 11, 2010

UL 1479 – Standard for Fire Tests of Through-Penetration Firestops
Revision dated March 1, 2010

UL 2353 – Standard for Safety for Single- and Multi-Layer Insulated Winding Wire
Revision dated March 1, 2010

UL 60745-2-16 – Hand-Held Motor-Operated Electric Tools – Safety – Part 2-16: Particular Requirements for Tackers
Revision dated March 10, 2010

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