For H2S detection, sensitized tapes indicate...

Question 1 / 205eccef9ebacbc34ba4d465f9

Question 1 of 205eccef9ebacbc34ba4d465f9

For H2S detection, sensitized tapes indicate H2S presence by means of discoloration of an exposed spot on the tape. The shade of the color on the spot depends upon the concentration of H2S and which of the following factors?

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🔍 Key Concepts

• H2S detection tapes respond to both gas concentration and how long they are exposed • Think about which environmental factor most directly affects how much gas contacts the tape over time • Consider which listed factors gas detection badges and dosimeters are typically calibrated against

💭 Think About

• If the tape darkens more when left in a constant H2S concentration for a longer period, which option best describes that relationship? • Which listed factor would cause the cumulative dose of H2S on the tape to increase, even if the concentration stays the same? • Of pressure, temperature, humidity, and time, which one is universally used for exposure limits in industrial hygiene (like ppm over a certain something)?

✅ Before You Answer

• Verify which variable H2S exposure limits are normally expressed with (e.g., ppm over what?). • Eliminate options that are more about atmospheric conditions than about the amount of exposure over a period. • Remember that the question already says shade depends on concentration; you’re looking for the second variable that builds total exposure.

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Question 1 of 20

duration of the exposure

air pressure at the time of the exposure

air temperature at the time of the exposure

humidity at the time of exposure

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Question 1 / 205eccef9ebacbc34ba4d465f9

Question 1 of 205eccef9ebacbc34ba4d465f9

Back

Question 1 of 20

5eccef9ebacbc34ba4d465f9

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🔍 Key Concepts

💭 Think About

✅ Before You Answer

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