YD/T 544-1992 PDF English
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Basic data
| Standard ID | YD/T 544-1992 (YD/T544-1992) |
| Description (Translated English) | Main dimensions of telephone transmitters (microphones) |
| Sector / Industry | Telecommunication Industry Standard (Recommended) |
| Classification of Chinese Standard | M40 |
| Classification of International Standard | 33.050.10 |
| Word Count Estimation | 1,134 |
| Date of Issue | 6/14/1992 |
| Date of Implementation | 10/1/1981 |
| Older Standard (superseded by this standard) | GB 2646-1981 |
| Regulation (derived from) | Industry-Science [2009] No. 58 |
