UNSPSC 42183031: Pseudoisochromatic plate sets

In this classification, this commodity indicates a product used as one of a set of colored plates that include some which appear isochromatic to individuals with color-vision abnormality and that are widely used as a test for color blindness in a medical setting. Most nations, for tariff and trade purposes, schedule these products under HS 901811.

UNSPSC 42183031 Pseudoisochromatic plate sets, a Commodity-tier code, covers color-blindness diagnostic plates used to screen for color vision deficiencies in clinical and occupational health settings. State and local governments procure these plates for use in public health departments, school district health offices, occupational safety programs, and employee pre-placement medical examinations. The plates—typically Ishihara or similar standardized test systems—are consumable or reusable diagnostic tools that medical professionals and certified technicians administer as part of routine vision screening, particularly in hiring, licensing, and safety-sensitive job assessments where color perception is operationally critical.

The source provided contains no recent state and local contract opportunities tagged to this code, making it difficult to characterize active issuing bodies, geographic concentration, or representative solicitation activity at this time.