Providing worldwide interlaboratory testing since 1971




409-2018-3: CIE L*, a*, b* Illuminant D65, 10° Observer, Sphere Geometry

Participants receive a set of two (2) opaque color paint chips, selected from throughout the color spectrum. This set consists of a main color and a nonmetameric match with small color differences. ASTM Test Methods E1331 and E1347 are referenced.

Lab must report color results as CIE L* a* b* data only.

This test includes the option to report spectrophotometric (reflectance) data at 16 selected wavelengths between 400 and 700 nanometers using one of the opaque color chips.

Total number of shipments = 3

Samples ship in April, July and October of 2018.

My samples are being shipped to:
Enrollment deadline(s)


Copyright © CTS, Inc., 2018

Collaborative Testing Services, Inc.
P.O. Box 650820, Sterling, Virginia, USA 20165-0820
Phone: 1-571-434-1925