How can i calculate UV irradiance value ? I am currently working on UV sanitation system. My aim is to kill 90-99 % microbes on the surface in around 30-40 sec. time. When i check for Uv-C lamp providers their data is given in UV output ( in Watts ) but for selection of suitable lamp, i will need data of UV Irradiance ( watts sec / cm2) .
You can reach this office at the following telephone number, which include country or city codes if you are outside the local dialing area. Taxpayers with specific individual or business account questions should contact the International Taxpayer Service Call Center by phone or fax. The International Call Center is operational Monday through Friday, from 6:00 a.m. to 11:00 p.m. (Eastern Time): Tel: 267-941-1000 (not toll-free).
â¢ Check on your refund. â¢ Find answers to most of your tax questions. Telephone Assistance for Individuals: Toll-Free, 800-829-1040. Hours of Operation: Monday â Friday, 7 a.m. â 7 p.m. your local time (Alaska & Hawaii follow Pacific Time).elephone Assistance for Individuals who believe they may be a victim of Identity Theft: No Tax Administration Impact-Did not receive a notice from the IRS. Toll-Free 800-908-4490 (Automated and live assistance). Hours of Operation: Monday â Friday, 7 a.m. â 7 p.m. your local time (Alaska & Hawaii follow Pacific Time).