The development process of magnesium oxide certified reference material was introduced.

介绍氧化镁标准物质的研制过程.

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The developing process of the certified reference material of rheological properties of polymer was introduced.

介绍聚合物流变特性标准物质的研制过程.

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The homogeneity and stability of non - flame smoke density certified reference material were satisfied.

介绍无焰燃烧烟密度标准物质的研制方法.

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The certified reference material mainly consists of polyisobutylene and hexadecane with good homogeneity and stability.

聚合物流变特性标准物质主要由聚异丁烯和十六烷组成.

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