DIN 19021-3-1987 标准详情
- 标准号:DIN 19021-3-1987
- 中文标题:白炽灯幻灯放映机的评价.第3部分:字幕片放映机投影区的温度测量
- 英文标题:Evaluation of still projectors with incandescent lamps; measurement of temperature in the projection area of overhead projectors
- 标准类别:德国标准
- 发布日期:1987-09
The standard specifies a testing method for the measurement of the temperature on the picture area of overhead projectors in accordance with DIN 108 part 7 which enables an examination of the temperature rise of transparencies.
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