Chinese Standard: GB/T 12807-1991

Laboratory glassware—Graduated pipettes

NEQ  ISO 835-1981

全国玻璃仪器标准化质量检测中心

This standard is the original Chinese electronic standard.
If you need translation, please contact email: ChineseStandardsLibraryS001@gmail.com.
After you successfully purchase, we will send the electronic version of this standard to your email address