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ppm??LEL???λ?????

??????>>????????>>ppm??LEL???λ?????

ppm??LEL???λ?????

?????2013/12/19 14:53:09  ???????jnhadz  ????????

 

ppm??λ?????LEL????????
ppm=%LEL??LEL(vol%)*100
???磺35??LEL????飬????LEL?2vol?????????ppm??35(%LEL)*2(vol%)*100=7000ppm???顣
??LEL=ppm/(LEL(vol%)*100)
300ppm????飬????LEL??1.2vol%?????????LEL??300ppm/(1.2vol%*100)=2.5%LEL???顣
??????????
???????1%?
?????????е????????3.33%VOL
1%LEL???????????LEL?0.033VOL%
?????ppm??1(%LEL)*0.033(vol%)*100=3.3ppm
???????10%
?????????е????????3.33%VOL
10%LEL???????????LEL?0.33VOL%
?????ppm??10(%LEL)*0.33(vol%)*100=330ppm
???????100%?
?????????е????????3.33%VOL
100%LEL???????????LEL?3.3VOL%
?????ppm??100(%LEL)*3.3(vol%)*100=33000ppm.

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