The certifcating methods of melting points and freezing points for five LGC certified reference materials for melting point, their determined results and the evaluation of uncertainty are introduced.

• 介绍英国政府化学家研究所(LGC)研制的五种熔点标准物质的熔点和凝固点的定值方法、定值结果及不确定度的估计。