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You find two solvents you want to use to clean steel covered with grease.
Solvent A has a high or fast evaporation rate.
Solvent B has a low or slow evaporation rate.

Which is the best choice below if they both have a TLV rating of 500?
1. Buy both the cleaner the steal is the easier it is to weld
2. Buy Solvent A
3. Buy Solvent B
4. Mix the two chemicals together to double up the speed you can complete you task.

Sagot :

The best choice below if they both have a TLV rating of 500 is option(b) i.e, Buy Solvent A.

A solute can be dissolved by a solvent, which creates a solution. In addition to being a liquid, a supercritical fluid, a solid, or a gas can also be a solvent. In a sink or container, combine equal parts of hot water and isopropyl alcohol (rubbing alcohol). Alcohol will function as a solvent to dissolve the grease.

A worker is thought to be able to be exposed to the threshold limit value (TLV) for one shift during working hours without suffering any negative consequences. Time Weighted Average (TWA), Short-Term Exposure Limit (STEL), and Ceiling are the three TLV categories that are listed (C).

If the total time-weighted average is not exceeded, a high TLV implies a higher exposure that can be tolerated for a brief period of time without having a harmful effect. The concentration that must not be exceeded at any point during the working exposure is known as the TLV-C or ceiling limits.

The Threshold Limit Value on board a ship is used to measure potentially harmful and poisonous airborne particles as well as physical elements, exposure times, and cleanliness standards on board. It's crucial to be aware of the potential risk and gauge its gravity in order to avoid excessive exposure to these drugs.

To know more about solvent refer to: https://brainly.com/question/14797683

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