| 項目 |
英語 |
| JAFIA | Japan Architecture Facilities Inspection Association |
| JAS | Japanese Agricultural Standards |
| JDWS | Japan Wiring Devices Association Standard |
| JEA | Japan Electric Association |
| JEAC | Japan Electric Association Code |
| JEC | Standard of the Japanese Electrotechnical Committee |
| JEM | Japan Electrical Manufacturers" Association Standard |
| JI | Joint Implementation |
| JICST | Japan Information Center of Science ＆ Technology |
| JIL | Japan Illumination Luminaires |
| JIS | Japanese Industrial Standards |
| JPEG | joint photographic experts group |
| JRT | Japanese ton of refrigeration |
| JSPE | Japan Society of Plumbing Engineers |
| JSWA | Japan Sewage Works Association |
| JSWAS | Japan Sewage Works Association Standard |
| JUST | Japanese United Standard for Telecommunication |
| JWWA | Japan Water Works Association |