Rules & regulations

NTA 8133 – Draft EN3-11

“The toughest lithium ion battery test there is”

Background of NTA 8133

The Dutch government recognized the growing risk of lithium-ion battery fires and the need for effective extinguishing solutions. In response, KIWA and the Royal Netherlands Standardization Institute developed the NTA 8133 guideline to evaluate the suitability of portable fire extinguishers for lithium-ion battery fires.

The NTA 8133, published in November 2021, became the first technical guideline specifically focused on lithium-ion battery fires with medium capacities up to 600 Wh. These rechargeable batteries are commonly found in smartphones, laptops, power tools, household equipment, medical devices, drones and e-bikes.

European standardization: Draft EN3-11

The testing protocol for Fire Class L extinguishers is described in the Draft EN3-11 standard. This European draft standard defines the performance requirements and testing procedures for extinguishing agents and portable fire extinguishers intended for lithium-ion battery fires.

The Draft EN3-11 protocol is largely based on the Dutch NTA 8133 guideline, which was developed to evaluate the effectiveness of extinguishing agents against lithium-ion battery fires under controlled and realistic test conditions.

The test procedure