GB/T 6160-2003
ActiveMicrographics--First generation silver-gelatin microforms of source documents--Density specifications and method of measurement
缩微摄影技术 源文件第一代银--明胶型缩微品密度规范与测量方法
📚 References & Relations / 引用与关联
normative_reference
GB/T 6159.
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GB/T 6159.1-2003
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ISO 5-1
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ISO 5-2
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ISO 5-3
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ISO 6196-1
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ISO 6196-4
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ISO 6196-5
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ISO 6196-6