Micrographics First generation silver-gelatin microforms of source documents—Density specifications and method of measurement
MOD ISO 6200:1999
全国文献影像技术标准化技术委员会
This standard is the original Chinese electronic standard. After you successfully purchase, we will send the electronic version of this standard to your email address. If you need translation, please contact email: ChineseStandardsLibraryS001@gmail.com.
