Description
Form 6F4 is a black and white Duplex Applicator Chart with overall dimensions of 3 x 7-1/4 in (76x 184 mm). The top half has four black bars on a white field and the bottom half is plain white. Originally made to be used with the Duplex Applicator, an instrument designed for rapid production of side-by-side drawdowns, it now serves mostly as a generic paint test chart.
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