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2012年3月21日 · Approved by the Standard Specific Interest Group for this Test Method TAPPI This Test Method may include safety precautions which are believed to be appropriate at the …
2001年12月1日 · 现行 TAPPI T 213 om-21 Dirt in Pulp - Chart Method 纸浆中的污垢.图表法 2021-11-01
2010年3月20日 · background of the TAPPI Dirt Estimation Chart which makes the same visual impression on its background as does the dirt speck on the particular background in which it is …
2024年12月18日 · (0.10). It is the same as for TAPPI T 437 “Dirt in Paper a nd Paperboard.” Only the round spots are used for the analysis.
2025年7月11日 · 为响应国家号召，推广中国国家强制标准，部分GB（中国国家强制标准）可以在本站下载到标准文本，也可以前往中国国家标准化委员会网站下载。
Scope 1.1 This method (1,2) is adapted to the numerical estimation of dirt in pulp and recycled pulps in terms of equivalent black area. 1.2 The results will differ from those obtained by TAPPI …
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This method (1,2) is adapted to the numerical estimation of dirt in pulp and recycled pulp in terms of equivalent black area. Dirt Estimation Chart purchased separately. Questions regarding …
2018年9月22日 · Scope 1.1 This method (1,2) is adapted to the numerical estimation of dirt in pulp and recycled pulp in terms of equivalent black area. 1.2 The results will differ from those …
2006年7月25日 · 该方法提供了一种测试，用于估计纸浆（包括回收纸浆）中的污垢量，以帮助工厂满足生产细颗粒或其他颗粒的需要- 免费文件。 灰色或有色斑点的估计等效黑色面积小于其 …
