What does HI IA VT CT 5c mean in bottles?

The HI IA VT CT 5c code found on bottles is a series of abbreviations indicating the type of glass used in the bottle's manufacturing:

  • HI: High Impact
  • IA: Impact Attenuation
  • VT: Vertical Twist
  • CT: Color Threshold
  • 5c: Thickness

High Impact (HI): This indicates that the bottle is made of a type of glass that is highly resistant to impact and breakage.

Impact Attenuation (IA): This means that the bottle has been treated with a special coating or process that further improves its impact resistance.

Vertical Twist (VT): This refers to the bottle's ability to withstand twisting forces, making it less likely to break under pressure.

Color Threshold (CT): This indicates the amount of light that can pass through the bottle's glass, which is important for preserving the contents of the bottle.

Thickness (5c): This number represents the thickness of the bottle's glass in hundredths of an inch. In this case, "5c" indicates that the glass is 0.05 inches thick.

  1. What type of glass is best for bottles that need to resist impact? HI (High Impact) glass.
  2. What does the IA in the code mean? Impact Attenuation, which indicates a special treatment for improved impact resistance.
  3. Why is the color threshold important? To preserve the contents of the bottle by limiting light exposure.
  4. What does VT represent in the code? Vertical Twist, indicating the bottle's resistance to twisting forces.
  5. What is the thickness of the glass in a bottle labeled HI IA VT CT 5c? 0.05 inches.
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