A gas is termed as non-toxic, if its maximum permissible concentration (TLV) ranges from __________ ppm.?

1000 to 2000
3000 to 6000
6000 to 9000
10000 to 100000

LohaHridoy

4 views

2025-01-04 04:42

1 Answers

AhmedNazir

Answer: Option 4

4 views Answered 2022-09-01 13:21

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