OHST Exam Questions and Answers 100% Solved | Rated A+
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Course
OHST
Institution
OHST
OHST Exam Questions and Answers
100% Solved | Rated A+
Public Law 91-596 - The Occupational Safety and Health Act. The
General Duty Clause is a part of Public Law 91-596 that say's "Each
employer shall furnish to each of his employees employment and a place of
employment which is free from rec...
Lethal Dose, 50% Kill (LD50) - ✔✔The LD50 is the amount of a material
that, when administered to laboratory animals, kills half of them.
Lethal Concentration, 50% Kill (LC50) - ✔✔The LC50 is the
concentration of a material that kills 50% of laboratory animals.
Threshold Limit Value (TLV) - ✔✔The airborne exposure level under
which most people can work day after day without adverse health effect
Thermoluminescent Dosimeters (TLDs), - ✔✔The use of TLDs has
increased due to the availability and low cost. Solid state materials with
impurities added exhibit high energy levels in orbital electrons when
exposed to incident radiation. This allows the material to be heated and a
measurement made of light photons released. The advantages of TLD over
film badges include: 1.) available in many forms and shapes or may be
impregnated in other materials, ex. Teflon 2.) TLDs can detect both beta
and gamma as well as slow neutrons. 3.) TLDs have an extended "Shelf
Life" 4.) Kiloroentgen measurements are possible. Alpha detection is not
possible with TLDs. TLDS are used for non-ionizing radiation.
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