Abstract
This standard provides guidance for the evaluation and testing of color, chromatic aberration, gloss, isochromatic spectrum and other optical properties of optical powder coatings by visual and instrumental means. The visual evaluation of optical performance shall include the visual glossiness test method, the Munsell color sequence system, and the ASTM test standards indicated in the specification. Instrumental evaluation of optical properties shall include specular glossiness testing, filter photometry, reflective fog, fluorescence, and ASTM test standards indicated in the specification.

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1.1 This standard provides users with guidance on the various practices and test methods available for the assessment of colour, chromatic aberration, lustre and isochromia by visual and instrumental means.

1.2 Ang pamantayang ito ay hindi nilayon upang tugunan ang lahat ng, kung meron man, mga alalahanin sa kaligtasan na nauugnay sa paggamit nito. Responsibilidad ng mga gumagamit ng pamantayang ito na magtatag ng angkop na mga kasanayan sa kaligtasan at kalusugan at upang matukoy ang pagiging angkop ng mga paghihigpit sa regulasyon bago gamitin.

1.3 This international standard is based on the internationally recognized standardization principles established in the Decision on Principles for the Development of International Standards, Mga Patnubay at Rekomendasyon na inilabas ng WTO Committee on Technical Barriers to Trade (TBT).