Home / Standards / GB/T 2677.5-93 GB/T 2677.5-93 Determination of 1% sodium hydroxide extract content in papermaking raw materials 造纸原料1%氢氧化钠抽出物含量的测定 Standard Type GBT ICS N/A CCS N/A Status N/A Issue Date N/A Implementation N/A Responsible Dept N/A Drafting Unit N/A