Chemical Engineering Chemical Environmental Engineering
Q Threshold limit value (TLV) means maximum permissible/acceptable concentration. TLV of phosgene in air is about ______________ ppm (parts per million)?
  • A A. 0.002
  • B B. 0.2
  • C C. 1.2
  • D D. 4.8
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Word of the Day
23 Jul
Aisle
a passage between rows of seats in a building such as a church or theatre, an aircraft, or train.
Ψ·ΩˆΫŒΩ„ ΨͺΩ†Ϊ― Ψ±Ψ§Ψ³Ψͺہ، Ω†Ψ΄Ψͺوں Ϊ©Ϋ’ Ψ―Ψ±Ω…ΫŒΨ§Ω† Ψ±Ψ§Ψ³Ψͺہ

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