According to UL 1950, sub clause 4.4.3.6, foam air filters must meet the flammability of Class V2 or better, or HF-2 or better. This rating in accordance with UL 94. Recently one of our suppliers has suggested the use of Class 2 filter material in accordance with UL 900 flammability. Additionally I have been told that filters that comply with Class 2 requirements are considered to meet the requirements of sub clause 4.4.3.6.
My questions are: 1. Is Class 2 similar to V-2 or HF-2? 2. Can UL 900 Class 2 filters be used to satisfy sub clause 4.4.3.6? 3. Is UL 900 "Performance of Air filters" applicable to ITE equipment per UL 1950? Thanks Rick Busche [email protected] ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. To cancel your subscription, send mail to: [email protected] with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: [email protected] Michael Garretson: [email protected] For policy questions, send mail to: Richard Nute: [email protected]
