Some ergonomic evaluations, such as tactility and grip, involve physical properties that are governed by glove thickness. This is especially true of dexterity and tactility. Analysis of Knowledge Gaps Human factors such as comfort are associated with fit. Good fit can be ensured via standard sizing specifications. But there are standard sizing specifications for only some CPC as footwear.
Comfort is established by trial and error.
Various brands of clothing in assorted sizes are tried on by workers. Standard test methods used to evaluate CPC as chemical permeation usually are laboratory test methods that may not represent typical work places. In practical terms, physical and chemical properties of CPC are derived from tables, charts, and general references. Standard practices to select CPC based on physical and chemical properties of materials, and human factors does not exist. The effectiveness of chemical barrier creams has not been effectively documented.