Description:
The Ancal white diffuse reflectance standards are high quality standards for white reference and target use. They can be used as a standard white for color reference and for the calibration of optical instruments and photographic equipment.

The reflectance material is of two types: Albrillon^tm, which is accepted as the criterion white throughout the optical industry, and Spectralon®, a newer, more robust material. Albrillon^tm standard whites are available in 40 mm and 50 mm diameter sizes; Spectralon® standards whites are in 50 mm diameter size. The standards come in a black anodized aluminum sheath with a protective threaded cover. Each standard is guaranteed to have between 97% and 100% reflectance.

Ceramic standards in white, red, yellow, green, and blue are available.

MODEL NUMBER	MATERIAL	A	B	C	HEIGHT A+C	DIAMETER D	E
CDH40	ALBRILLON	8	11	5	13	40	53
CDH50	ALBRILLON	10	12	5	15	50	62
CDH100	ALBRILLON	13	17	6	19	100	115
CLS50	SPECTRALON	13	16	5	18	50	62