specimens are to be preconditioned for flammability (94 V0, V1 & V2) testing. 1. two sets of five specimens each are to be preconditioned in accordance with ASTM D618 at 23 C, 50 RH for 48 hours. 2. two sets of five specimens each are to be preconditioned in an air-circulating oven for 168 hours at 70 C and then cooled in desiccator for at least 4 hours at room temp prior to testing. (as an alternative, industrial laminates may be conditioned for 24 hours at 125 C.)
hope this helps. vijay wani Dow Chemical From: Gary McInturff [mailto:[email protected]] Sent: Tuesday, March 18, 2003 1:57 PM To: [email protected]; [email protected] Subject: RE: Fire Retardants Richard, I think that is one of the reason that the flame tests require aging in ovens before UL et al burn them, but I don't know for certain. Gary From: [email protected] [mailto:[email protected]] Sent: Tuesday, March 18, 2003 6:32 AM To: [email protected] Subject: Fire Retardants If a plastic containing a fire retardant is subjected to high heat (for example, due to a overheated component) for an extended period of time (many hours or several days), is it possible that the fire retardant in the plastic will outgas sufficiently to decrease the flame rating of the plastic in the heated area? Richard Woods Sensormatic Electronics Tyco International This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: [email protected] with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: [email protected] Dave Heald: [email protected] For policy questions, send mail to: Richard Nute: [email protected] Jim Bacher: [email protected] Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: [email protected] with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: [email protected] Dave Heald: [email protected] For policy questions, send mail to: Richard Nute: [email protected] Jim Bacher: [email protected] Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: [email protected] with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: [email protected] Dave Heald: [email protected] For policy questions, send mail to: Richard Nute: [email protected] Jim Bacher: [email protected] Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
