本文根据2016年实施的《JJG1125-2016氯乙烯气体检测报警仪》计量检定规程,评定了氯乙烯气体检测报警器示值误差测量结果的不确定度,与计量同行交流.

建立以4-甲基-2-戊醇为内标物,DB–FFAP毛细管柱气相色谱分离的液体洗涤剂中甲醇含量的测定方法.通过与外标法对比分析并绘制加标浓度相关趋势图,为洗涤剂中甲醇含量的测定提供参考依据.在甲醇的质量浓度0～1000 mg/L范围内,甲醇与内标物的色谱峰面积比值与质量浓度比值具有良好的线性关系,相关系数为0.9999.样品加标回收率为91.2％～99.6％,相对标准偏差小于3％(n=6).该方法快速、灵敏.

As the technical basis of the scientific and quantitative management,standard is the ground for energy-saving in enterprises.The interprises must formulate proper energy saving standard system according to the laws,regulations,policy on energy saving and emission reduction of the country,which will be brought into the enterprise standard system.Taking the standard of energy-saving in enterprises as the base,the technology innovation as the motivation,we should try to pursue energy saving and emission reduction to use efficiency maximization on the sources of energy and get the maximization of economic benefits.

众多的食品质量安全事件对社会的和谐安定造成了恶劣影响,食品质量事件都是追逐利益、道德诚信丧失的结果.打击欺诈、弘扬诚信是社会安定发展的要求,必须从道德、法律、信用三个层面推动诚信生产经营,保障食品质量安全,提高质量安全控制水平.