67 AFNOR NF EN 61280-2-8-2004 2004-05-01 French Fibre optic communication subsystem test procedures - Digital systems - Part 2-8 : determination of low BER using Q-factor measurements 68 AFNOR NF EN 13241-1-2004 2004-05-01 French Industrial, commercial and garage doors and gates - Produc...
NF P52-612/CN:2005的标准全文信息,建筑物内的加热系统.设计热负载的计算方法.国家附加标准NF EN 12831:第6-7条款的计算用缺席值, Heating systems in buildings - Method for calculation of the design heat load -