|
生產(chǎn)性粉塵中游離的二氧化硅含量，％
|
工人接觸粉塵時(shí)間肺總通氣量（L/日·人）
|
生產(chǎn)性粉塵濃度超標(biāo)倍數(shù)
|
|||||||
|
0
|
～1
|
～2
|
～4
|
～8
|
～16
|
～32
|
～64
|
||
|
＜10
|
～4000
|
|
|
|
|
|
|
|
|
|
～6000
|
|
|
|
|
|
|
|
|
|
|
＞6000
|
0
|
Ⅰ
|
Ⅱ
|
Ⅲ
|
Ⅳ
|
||||
|
＞10～40
|
～4000
|
|
|
|
|
|
|
|
|
|
～6000
|
|
|
|
|
|
|
|
|
|
|
＞6000
|
|
|
|
|
|
|
|
|
|
|
＞40～70
|
～4000
|
|
|
|
|
|
|
|
|
|
～6000
|
|
|
|
|
|
|
|
|
|
|
＞6000
|
|
|
|
|
|
|
|
|
|
|
＞70
|
～4000
|
|
|
|
|
|
|
|
|
|
～6000
|
|
|
|
|
|
|
|
|
|
|
＞6000
|
|
|
|
|
|
|
|
|
|
