quantitative filter paper

定量滤纸(quantitative filter paper)是巾纯净的植物纤维索浆制成。它是由粗细不等的天然 纤维素互相重叠在一起，形成大小和形状都不规则的空隙．其厚度小于0．25mm .

 ash-free filter

... ash-free 无灰的 ash-free filter 无灰滤纸；定量滤纸 ashing 灰化 ...

 ashless filter pa

定性滤纸;qualitative filter paper 定量滤纸;quantitative filter paper;ashless filter pa…… 无氮滤纸;nitrogen-free filter paper .

 quantitative paper

... qualitative (filter) paper定性滤纸 quantitative paper定量滤纸 rag paper碎布优质纸 ...