UV Irradiance Detectors. UV-37 series detectors are high sensitivity irradiance detectors for UV radiometric applications involving polychromatic optical radiation. Each detector is supplied with a diffuser window and shadow ring for a cosine corrected field-of-view.
International Organization. The term âInternational Organisationâ means any international organisation or wholly owned agency or instrumentality thereof. This category includes any intergovernmental organisation (including a supranational organisation) that is comprised primarily of governments;
Check the organizationâs tax-exempt status. A tax-exempt organization is one that the Internal Revenue Service (âIRSâ) has recognized as a charitable organization and has exempted it from the obligation to pay income tax. To check an organizationâs tax-exempt status: 1  Search the IRS tax-exempt database.2  The IRS offers a searchable database so that consumers may check on an organizationâs tax-exempt status. 3  You may access the database on the IRS website at http://apps.irs.gov/app/eos/ . Check your stateâs website to see if your state offers an online database of registered business and/or charities. 2  Your local library. 3  Visit the library and check to see if the company is listed in the National Directory of Nonprofit Organizations or the Encyclopedia of Associations.