ACCU DYNE TEST™ Marker Pens

The fluids contained in ACCU DYNE TEST™ marker pens are considered hazardous materials. Avoid contact with skin. Use with adequate ventilation. Avoid contact with eyes. Pregnant women should not perform this test. For further information, refer to product MSDS.

For the results of this test to be meaningful, the following four points are absolutely essential and must be followed:

1) Do not touch or in any way contaminate the surface to be tested. Dirty surfaces lose their wettability.

2) Do not use contaminated or outdated ACCU DYNE TEST™ marker pens.

3) Never retest the same location on a sample; move along the sample, or pull a new one.

4) Store and use ACCU DYNE TEST™ marker pens at room temperature.

1.0 Materials/Equipment

1.1 ACCU DYNE TEST™ Marker Pens

1.2 Subject Material

1.3 Clean Level Test Area

1.4 Thermometer and Hygrometer

2.0 Method

2.1 Pull test sample. Be sure to pull a good specimen; surface aberrations cause poor results. For extruded film, one entire web cross-section should suffice. Do not touch the surface.

2.2 Place the sample on a clean, level surface. If necessary, anchor the edges to avoid curling or other deformation.

2.3 Record ambient temperature and relative humidity. If sample temperature differs from ambient, allow it to stabilize.

2.4 Test at least three points across the sample; 1/4, 1/2, and 3/4 across the film section. It is good practice to test the outer edges as well. For non-film materials, test locations must be determined in-house.

2.5 Determination of Wetting

2.5.1 Choose an ACCU DYNE TEST™ marker pen of a dyne level you believe is slightly lower than that of the test sample.

2.5.2 Press applicator tip firmly down on subject material until the tip is saturated with ink.

2.5.3 Use a light touch to draw the pen across the test sample in two or three parallel passes. Disregard the first pass(es); to flush any contamination from the tip, and to ensure that the test fluid layer is thin enough for accurate measurement, evaluate only the last pass.

2.5.4 If the last ink swath remains wetted out on the test sample for three seconds or more, repeat steps 2.5.2 and 2.5.3 with the next higher dyne level marker. If the last ink swath beads up, tears apart, or shrinks into a thin line within one second or less, repeat steps 2.5.2 and 2.5.3 with the next lower dyne level marker. If the ink swath holds for one to three seconds before losing its integrity, the dyne level of the marker closely matches that of the sample.