Testing and inspection of diving cylinders

High school (ages 12+)
Safety & Emergency

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/testing-and-inspection-of-diving-cylinders

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. What is the hydrostatic test tolerance?Permanent volumetric expansion beyond a specified, minimal tolerance indicates cylinder failure
2. What is the main reason scuba tanks get checked and tested?They are checked to find problems before they happen, keeping divers safe underwater.
3. How often do scuba tanks need to be inspected?They are inspected regularly, often every few years or after a set number of uses, depending on safety rules.

Transportable Pressure Vessel: A container designed to safely store and transport gases under significant pressure.
Volumetric Expansion: The change in a cylinder's internal volume when subjected to pressure, measured during hydrostatic testing.
Material Fatigue: The weakening of a material caused by repeatedly applied loads, which can lead to failure.