Blackness. The copies used for the half-tone
evaluation also shall be visually examined to determine blackness of solid
areas and whiteness of the back ground. Using a standard gray scale such as a
“Munsell Neutral Value Scale”, the observer shall visually compare patterns 7
and 8 on each copy to the gray scale the observer shall determine the
reflectance of the background by determining the reflectance of the first step
of pattern 7 and the 15th step of pattern 8.
All six (6) dark area reflectance determinations shall
comply with the reflectance requirement for the solid darkest area on the copy.
All six (6) background reflectance determinations shall comply with the
reflectance requirement for the background tires of the copy.
Test procedure II (Copying Carbonless Blues):
1. Turn on and warm up the machine.
2. Make five (5) copies each of the color standard charts-Hue symbol 5PB,
7.5PB, and 10PB from the “Munsell Book of Color, Matte Finish Collection” with
the dark [-css/lightness control set to make the darkest copies.
3. From each group of 5 copies, choose the 5th copy and perform the evaluation.
Evaluation:
Take the 5th copy of the 5PB Hue Color Chart and, using visual evaluation, match
the lightest symbol in the 7 Value(V) line with one of the neutral grays of the
“Munsell Neutral Value Scale” and record the reflectance value.
Repeat the above using the 7.5PB and 10PB Hue symbols.
Take the average of the three reflectance values and use it to determine
compliance with the performance requirement under Carbonless Blue.
Identification. Each copier shall have the
manufacturer’s serial number permanently and legibly stamped or affixed on a
major component in a readily accessible location. In addition, each copier
shall be permanently and legibly marked in a conspicuous location with the
manufacturer’s name or trademark.
Regulatory requirements. The offeror/contractor is
encouraged to use recovered materials in accordance with Public Law 94-580 to
the maximum extent practical.
Preservation, packaging, packing, labeling, and marking. The
preservation, packaging, packing, labeling, and marking shall be as specified
in the contract or order.
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