ASTM D120 is the standard outlining the specifications for rubber insulating gloves used to protect against electrical shock. It defines glove classes by voltage rating and includes testing methods for dielectric strength, physical durability, and ozone resistance.
Gloves must undergo rigorous testing to ensure their dielectric strength, tensile strength, elongation, and ozone resistance meet the specified criteria. These tests are outlined within the standard and include methods such as voltage proof tests and physical property tests. The standard also covers requirements for labeling, marking, and packaging of the gloves to ensure proper identification and safe use.
ASTM D120 is crucial for ensuring the safety and reliability of electrical workers’ primary hand protection.