加拿大国家标准规定了测量材料电弧热性能值的试验方法，这些材料用于接触电弧的工人的耐热和阻燃服装。这些试验方法测量满足以下要求的材料的电弧热性能值:当按照ISO 15025程序B（底边点火）对外部材料进行试验时，焦碳长度小于100 mm，火焰熄灭后余火小于2 s，以及使用附录a中所述的改进ISO方法测量的焦碳长度。这些方法用于测量和描述材料、产品、装配或服装的特性，以响应实验室条件下露天电弧产生的对流和辐射能。

This National Standard of Canada specifies test methods to measure the arc thermal performance value of materials intended for use in heat- and flame- resistant clothing of workers exposed to electric arcs.These test methods measure the arc thermal performance value of materials which meet the following requirements: less than 100 mm char length and less than 2 s afterflame after removal from flame, when tested in accordance with ISO 15025, procedure B (bottom-edge ignition) on the outer material, and the char length measured using a modified ISO method as described in Annex A.These methods are used to measure and describe the properties of material, products, assembled or garments in response to convective and radiant energy generated by an electric arc in open air under laboratory conditions.