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Database: 189760 (18 Oct 2025)
JB/T 9427.1-2016 English PDF
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JB/T 9427.1-2016
: Projector test film - Part 1: Projector test film for monophonic sound 35 mm motion picture-Technical specification
Status: Valid
JB/T 9427.1: Evolution and historical versions
Standard ID
Contents [version]
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Standard Title (Description)
Status
PDF
JB/T 9427.1-2016
English
169
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Projector test film - Part 1: Projector test film for monophonic sound 35 mm motion picture-Technical specification
Valid
JB/T 9427.1-2016
JB/T 9427.1-1999
English
279
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3 days [Need to translate]
35mmCinema to graphy-photographic monophonic sound test films. Specifications
Obsolete
JB/T 9427.1-1999
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Basic data
Standard ID
JB/T 9427.1-2016 (JB/T9427.1-2016)
Description (Translated English)
Projector test film - Part 1: Projector test film for monophonic sound 35 mm motion picture-Technical specification
Sector / Industry
Mechanical & Machinery Industry Standard (Recommended)
Classification of Chinese Standard
N44
Word Count Estimation
7,756
Date of Issue
2016-01-15
Date of Implementation
2016-06-01
Older Standard (superseded by this standard)
JB/T 9427.1-1999
Regulation (derived from)
?Ministry of Industry and Information Technology Bulletin 2016 No.3
Issuing agency(ies)
Ministry of Industry and Information Technology
Summary
This standard specifies the basic technical requirements for the 35mm mono optical vocal cord test piece for inspection, adjustment and measurement of the optical reverberation system path of film equipment. a) test and adjust the test piece for the lateral width of the sound-stimulated light blade and its relative position to the reference side of the film; b) the test piece for checking and adjusting the sound-stimulus or the focus and the tilt angle (azimuth) ; c) test and adjust the test piece for the uniformity of the illuminating light edge illumination; d) test piece for checking and adjusting the level output balance of the sound path; e) test piece for checking and adjusting the frequency characteristic of the sound path ;f) A jitter rate test piece for checking and adjusting the unevenness of the sound speed.