To: Brent Taira and anyone else wondering, I have discussed this matter of ozone testing with UL and they said they are taking the European approach to this clause (UL 1950 1.7.2 Note 5). Which is, "it is the manufacturers responsibility to show that their products can pass the limit". That is why we were going to try to set up testing closer to our location or test ourselves if possible. In addition, I have found that there is no testing procedure in UL 1950 for the ozone test, just a limit of 0.1 ppm. So I was really inquiring how others handle this testing. I am sorry I did not communicate these facts earlier.
Thanks, Joan Legerski, Regulatory Agency Engineer Kentek Information Systems, Inc. 2945 Wilderness Place Boulder CO, 80301 PH: 303-440-5500 X 1167 Fx: 303-440-9600 email: [email protected] ---------------------- Original Message Follows ---------------------- Hello, Please give me any information about testing laboratories that can test for ozone, at a level of 0.1 ppm (0.2 mg/m3). See UL 1950 1.7.2 Note 5. Or if there are any places that rent this equipment. I have checked into purchasing the instruments and it looks like the cost is not practical for my application at this point. Also if any one has any insight as to how to handle this UL 1950 clause please let me know. Thanks,

