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Sample Description: Two similar samples, each containing ten pre-conditioned 4.25" by 5.5" sheets of paper.

Participants will prepare a test ink composed of a 1.25% solution of Naphtol Green B dye and 1.0% formic acid ink and test samples to an 80% reflectance endpoint in accordance with TAPPI T530.

Samples ship every other month for a total of six shipments beginning with the earliest available cycle of testing. Testing is conducted during February, April, June, August, October, and December, with samples for each test cycle shipping in the month prior.

This test is included on CTS' Scope of Accreditation to ISO/IEC 17043.