DS/EN ISO 8968-3:2007
牛奶 氮含量的测定 第3部分:分块消解法(半微量快速常规法)

Milk - Determination of nitrogen content - Part 3: Block-digestion method (Semi-micro rapid routine method)


 

 

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标准号
DS/EN ISO 8968-3:2007
发布
2007年
发布单位
丹麦标准化协会
当前最新
DS/EN ISO 8968-3:2007
 
 
被代替标准
DS/ISO 8968-3:2005
适用范围
This part of ISO 8968.IDF 20 specifies a method for the determination of the nitrogen content of liquid, whole or skimmed milk.It concerns a semi-micro rapid routine method following the block-digestion principle.NOTE The method is a more rapid method than that described in ISO 8968-1.IDF 20-1 and ISO 8968-2.IDF 20-2 since the digestion time is reduced by taking a lower mass of test portion and using hydrogen peroxide together with sulfuric acid and a catalyst in the digestion.

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