TAPPI T 452 brightness is often referred to as GE brightness since General Electric invented one of the first paper brightness testing machines which became the industry standard for decades. A data sheet that includes the measurements of each dot will be provided to the customer along with the chart. Air pressure between the annular test lands when the test head is loaded onto the specimen Flow (mL/min) Pressure (kPa) Flow (mL/min) Pressure … … TAPPI/ANSI T 437 om-12 Dirt in paper and paperboard / 2 3.3 This method differs from T 537 “Dirt Count in Pape r and Paperboard (OCR),” where each dirt speck is counted, regardless of size, shape or color. The actual chart is a photograph approximately 3 1/2 in. Contain <0.0008% reducible sulfur (TAPPI T-406). 2. This chart should be used in conjunction with TAPPI T564, NOT T213 or T437. ‐ or Kappa # ≤5 in TAPPI T-236 test. Considering there are two TAPPI standards for … The chart must not be used to estimate the equivalent black area (EBA) of dirt or other colored specks. Determine the moisture content of duplicate 2-g portions of the sample according to TAPPI T 550 "Determination of Equilibrium Moisture in Pulp, Paper, and Paperboard for Chemical Analysis." Dirt measurements by the EBA method should be performed in accordance with TAPPI T 437 "Dirt in Paper and Paperboard," TAPPI T 213 "Dirt in Pulp," or TAPPI T 563 "Equivalent Black Area (EBA) and Count of Visible Dirt … as determined by TAPPI T811. 4. Free of alum-rosin sizing (ASTM D 549 or TAPPI T-408) Free of optical whitening agent and fire retardant. TAPPI 205 “Forming Handsheets for Physical Tests of Pulp.” 3.4 Bucket, of at least 10 L capacity to hold the stock. 10 Grade number for triplewall refers to the dry puncture resistance in units as determined by TAPPI … 3.5 Dipper, a shallow plastic cup with a thick, smooth lip is recommended. (89 3.7 Tared filter paper. This chart was developed from the “TAPPI Dirt Estimation Chart” to provide a means for size estimation. Apparatus 4.1 Dirt estimation chart1 (see Fig. Samples shall be selected in accordance with TAPPI T 400 “Sampling and Accepting a Single Lot of Paper, Paperboard, Fiberboard or Related Product.” Table 1. x 5 in. TAPPI standards (Number and Title) Fibrous Materials and Pulp Testing T 200 Laboratory Beating of Pulp (Valley Beater Method) T 204 Solvent Extractives of Wood and Pulp T 205 Forming Handsheets for Physical Tests of Pulp T 207 Water Solubility of Wood and Pulp T 210 Sampling and Testing Wood Pulp Shipments … STANDARD TEST METHODS REFERENCE CHART Stestmethod.doc Page 2 of 16 Issue: February 7, 2006 VpCI-146 TAPPI T-410 (Basis Weight) TAPPI T-411 (Caliper thickness, Tear) TAPPI T-538 (Smoothness) VpCI-324 ASTM D-445 (Kinematic Viscosity) ASTM D-2161 (Saybolt Viscosity) ASTM D-1748 (Humidity … 4.1.1 Only the photographic dirt charts specified in Sec tion 4 shall be used when performing the procedure in this test method. 3.6 Büchner funnel and flask. It is the same as for TAPPI T 437 “Dirt in Paper a nd Paperboard.” Only the round spots are used for the analysis. crush in lb/in. 9 Grade numbers for double wall corrugated varieties with an “X” indicate that the value should be used as a guide and that the actual required edge crush test value is yet to be determined. Dirt in pulp • chart method, TAPPI/ANSI Test Method T 213 om-15 Please Note : This document will be available in PDF format in the "My Electronic Documents" link on the home page once your order has been completed. 3.8 Weighing bottle, preferably a shallow type, to accommodate a folded pad of … to TAPPI T 402 "Standard Conditioning and Testing Atmospheres for Paper, Board, Pulp Handsheets, and Related Products." The dots on the chart are correct within an average 10% or 0.005 square millimeters, whichever is the larger. other industrial materials such as textiles or plastics. Scope. The GE brightness measurement scale has been in place since the 1930s. 1). 2.1 The transparent chart developed for this method may be used to estimate the size (area) of spots, defects, and/or other inclusions over the range … The use of any other type chart made by a process other than photographic, …
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