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Chinese National Standard Category: Projection equipment and its accessory |
English Title: | Sprockets for 16mm Motion-picture Projectors-tooth Profiles, Dimension and Precision |
Chinese Title: | 16mm电影放映机输片齿轮齿形、主要尺寸和精度 |
Standard No.: | JB/T 9420-1999 |
Category No.: | N42 |
Issued by: | Qinhuangdao Audio-Visual Machinery Research Institute |
Issued on: | 1999-08-06 |
Implemented on: | 2000-1-1 |
Status: | superseded |
Superseded by: | JB/T 9420-2010 Sprockets for 16mm motion-picture projectors-tooth profiles dimension and precision |
Superseded on: | 2010-7-1 |
Abolished on: | |
Superseding: | ZB Y015-1981 |
Word Count: | 1000 words |
Similar Standards: | GB 10976-1989 GB/T 19896-2005 GB/T 19895.1-2005 GB/T 13982-2022 GB/T 32145-2015 GB/T 32143-2015 GB/T 32144-2015 GB/T 32200-2015 GB/T 13982-2011/XG1-2015 JB/T 9425-2011 JB/T 9424-2011 JB/T 11090-2011 JB/T 9419-2011 JB/T 6839-2011 JB/T 9418-2011 GB/T 13982-2011 GB/T 27507-2011 JB/T 10976-2010 JB/T 9420-2010 JB/T 9421-2010 |
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