EN14236污(wu)染物 又(you)名
GBT39841抗(kang)污(wu)染物性(xing)能測(ce)試
GBT39841-2021 超聲(sheng)波燃氣表(biao)Ultrasonic gas meters測試灰塵
灰塵的規格
試驗采用 4 組(zu)(zu)不同尺寸的灰塵(chen),每(mei)組(zu)(zu)中 95%的灰塵(chen)顆粒大(da)小(xiao)在下列相應(ying)尺寸范圍內(nei)
a) 0um~100 um;平均(jun)大小( 50士10)um;
b) 100 um~200 um;平均大小(xiao)(150 士10) um;
c)200 um~300um;平均大小(xiao)(250士10)um;
d) 300pm~400um;平均大(da)小(350士10)um。
上述每一組灰塵的質量成(cheng)分應是:
四氧化三鐵(Fe304) 79%;
三氧(yang)化(hua)二鐵(Fe203) 12%;
二氧化硅(Si0) 8%;
一油漆殘片 1%
EN 14236:2007(E)
Specification of contamination dust
Four separate batches of dust shall be used with 95 % of the particles in each batch in the appropriate size range given below:
a)0 um to 100 um Average size (50士10) um;
b) 100 um to 200 um Average size (150士10) um;
c) 200 um to 300 um Average size (250 士10) um;
d) 300 um to 400 um Average size (350士 10) um.
Each of the above batches shall have a composition by mass of:
Black iron oxide(Fe3O4) 79 %
Red iron oxide (Fe2O3) 12 %
Mineral silica flour (SiO) 8%
Paint residual flake 1%