Photometry Laboratory Accuracy Guidelines J1330_200712

DOI: https://doi.org/10.4271/J1330_200712

Issuing Committee: Test Methods and Equipment Stds Committee

Publisher: SAE International

Pages: 10

Rationale: In response to general comments from the members of the SAE Lighting Committee, along with changes in technology, this document has been rewritten. The changes from the last issued version are as follows: a Rewrite of Appendix B removing the table of conversions of Type A goniometer’s angles to Type B, as the Type B devices are not generally used in the industry any more. Diagram of both types was kept for reference. b Added reference to SAE J575 for voltage measurement requirements. c Added to “Applicable Publications” SAE J387 for definition of Accurate Rated Bulbs. d Added to “Related Publications” SAE J2650 as a performance requirement for road illumination device systems that references this document. e Revised the term referencing the use of Accurate Rated Bulbs from “should” to “shall” to match SAE J575. f Reference to “Non-Replaceable Light Sources” was removed, and the “Bulbs” section of SAE J575 was referenced. g A general guideline of a base-line laboratory temperature of 23 °C (73 °F) was added. h The reference for ASTM Report E 308-85 has been updated to the newest revision. Also, the ASTM Report is no longer available in the HS-34 Handbook Section IV, so this reference has been moved. i A reference to IESNA Reports about the types and usage of goniometers was added. j Fixed reference to SAE J2139 which was incorrectly stating SAE J2039.