One of the most critical distinctions in industrial safety equipment certification is understanding what exactly is being certified—the equipment itself or the personal protective equipment (PPE) worn by operators. This confusion is particularly common in the meat slicer industry, where CE marking, NSF/ANSI standards, and EN166 certification are all mentioned but serve fundamentally different purposes.
CE Marking is a conformity mark for products sold in the European Economic Area (EEA). For meat slicers, CE certification indicates compliance with multiple EU directives including the Machinery Directive (2006/42/EC), Low Voltage Directive (2014/35/EU), EMC Directive (2014/30/EU), and regulations on food contact materials (EC 1935/2004) [1]. The manufacturer declares that the product meets all applicable EU requirements at the time it was placed on the market.
NSF/ANSI 8 is the American National Standard specifically for commercial powered food preparation equipment, including meat slicers, grinders, and mixers. This standard covers material safety, design, construction, and sanitation requirements. Products bearing the NSF mark have been tested by an independent third party and meet minimum food protection and sanitation standards recognized across all 50 US states and Canada [2].
EN166 is the European standard for personal eye protection, specifying construction, design, and performance requirements for protective eyewear. It includes optical class ratings (Class 1 for permanent wear, Class 2 for occasional wear, Class 3 for brief wear) and mechanical strength ratings (S for increased robustness, F for 45m/s low energy impact, B for 120m/s medium energy, A for 190m/s high energy) [4]. Spectacles can achieve maximum F rating, while goggles and face shields can reach higher ratings.
ANSI/ISEA Z87.1-2025 is the current American standard for safety glasses and eye/face protection devices. The marking system includes Z87 for basic compliance, Z87+ for high impact rating, H for head coverage, D3 for splash protection, D4 for dust protection, and D5 for fine dust protection [5]. Like EN166, this standard applies to the protective eyewear worn by workers, not to the machinery they operate.
CE marking only applies to products covered by specific EU rules that harmonise product requirements in the EU. Products that do not require CE marking are subject to general product safety rules which ensure they are safe for consumers [1].

