EN 1149-5

EN 1149-5 is a European standard that pertains to protective clothing designed to provide protection against electrostatic discharge in potentially explosive atmospheres. The title of the standard is “Protective clothing – Electrostatic properties – Part 5: Material performance and design requirements.” It falls under the category of personal protective equipment (PPE) and is intended to ensure that protective clothing worn by workers in environments with flammable or explosive hazards offers effective protection against the buildup and discharge of static electricity.

EN 1149-5 specifies the requirements and testing methods for clothing materials and design that are intended to prevent the accumulation of static electricity on the surface of the clothing. This helps to minimize the risk of sparking and ignition in potentially explosive atmospheres.

The main parameters covered by EN 1149-5 include:

1. Surface Resistance: The clothing’s surface resistance is tested to ensure it allows the controlled dissipation of static charges, preventing them from accumulating and causing sparks.
2. Charge Decay: The clothing’s ability to dissipate static charges over time is evaluated.
3. Design Requirements: The standard outlines design considerations to ensure that protective clothing maintains its electrostatic properties after wear, washing, and other conditions.

Clothing that conforms to EN 1149-5 is often labeled as such, indicating that it meets the standard’s requirements for protecting against electrostatic discharge in potentially explosive atmospheres.