| Standard ID | GB/T 20151-2006 (GB/T20151-2006) |
| Description (Translated English) | Photometry -- The CIE system of physical photometry |
| Sector / Industry | National Standard (Recommended) |
| Classification of Chinese Standard | K71 |
| Classification of International Standard | 17.180.20 |
| Word Count Estimation | 22,239 |
| Date of Issue | 2006-03-06 |
| Date of Implementation | 2006-11-01 |
| Adopted Standard | CIE S 010/E-2004, IDT |
| Regulation (derived from) | China Announcement of Newly Approved National Standards No. 4, 2006 (No. 91 overall) |
| Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China |
| Summary | This standard specifies the physical created by the CIE photometric system characteristics that are recognized as the basis for optical measurements. This standard measure of light, photometric units as well as the physical form CIPM CIE system was officially recognized standards were defined. |