NSF International provides lighting certifications for manufacturers whose products are used in industries where sanitation, structural integrity, and low air pollutant levels are essential. NSF-approved lighting products typically have designs and production methods intended to withstand abuse and avoid contamination of the area where the light is installed.
The NSF has approved a variety of lamps and fixtures for these applications. NSF certification provides a way for purchasers and consumers to know that a certain lighting product is of the highest quality.
NSF-certified lighting products are typically designed to reduce breakage and protect occupants from injury or contamination. They also have features designed to ensure the light’s performance when faced with contaminants often found in these environments.
NSF has defined standards based on area conditions and on the extent of direct contact with food products. The NSF standard that relates to food and beverage lighting products, referred to as NSF/ANSI Standard 2 (or just NSF 2), organizes plant environments into three zonal categories: Non-Food Zone, Splash Zone and Food Zone (Table 1).
Each zone reflects environments ranging from areas such as food storage, where there is no direct contact with food products and no high-pressure wash-downs; wet-processing areas that require high-pressure wash-downs but where there is no direct contact with food; and areas where the product comes into direct contact with food.
Since lighting products do not come into direct contact with food, only the NSF guidelines for Non-Food Zone and Splash Zone usually apply. LED lighting manufacturers seeking NSF-2 certification for their products must ensure that a product’s physical design, the materials used, and the manufacturing processes employed all comply with NSF standards according to the relevant zone.