Customer Service:
Mon - Fri: 8:30 am - 6 pm EST


TAPPI T 213 om-15

Dirt in pulp - chart method

  1. This method (1,2) is adapted to the numerical estimation of dirt in pulp and recycled pulp in terms of equivalent black area.
  2. The results will differ from those obtained by TAPPI T 246 "Foreign Particulate Matter in Pulp by Transmitted Light (w/d)" in that it is the contrasting color of foreign matter rather than its opaqueness that affects the result.
  3. An automated procedure for dirt count can be found in TAPPI T 563 "Equivalent Black Area (EBA) and Count of Visible Dirt in Pulp, Paper, and Paperboard by Image Analysis." Both this procedure and T 563 are based on Equivalent Black Area (EBA) measurement.

Content Provider
Technical Association of the Pulp and Paper Industry [tappi]

Others Also Bought

ANSI/AAMI ES60601-1:2005 (R2012) with amendments
Medical electrical equipment - Part 1: General requirements for basic safety and essential performance (IEC 60601-1:2005, ...
ANSI/AAMI/IEC 60601-1-2:2014
Medical electrical equipment - Part 1-2: General requirements for basic safety and essential performance - Collateral ...
ANSI/AAMI/IEC 60601-2-2:2017
Medical electrical equipment - Part 2-2: Particular requirements for the basic safety and essential performance ...

As the voice of the U.S. standards and conformity assessment system, the American National Standards Institute (ANSI) empowers its members and constituents to strengthen the U.S. marketplace position in the global economy while helping to assure the safety and health of consumers and the protection of the environment.