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Author Question: Why is it important to use only the special dyes made to color the water in your physical vacuum ... (Read 49 times)

notis

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on: Jul 26, 2018
Why is it important to use only the special dyes made to color the water in your physical vacuum indicator?
 
  What will be an ideal response?

Question 2

Units of vacuum are expressed in:
 
  What will be an ideal response?


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princessflame2016

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Reply #1 on: Jul 26, 2018
Answer to Question 1

The special dye has a specific gravity of 1.00. This matches the water in the instrument. Other dyes would change the specific gravity of the water thus introduce inaccuracy to the indication.

Answer to Question 2

Inches of water or Inches/Millimeters of Mercury or Microns.


notis

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Reply 2 on: Jul 26, 2018
Wow, this really help

ricroger

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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