Color Code used in Pharmaceutical Industries for Gas Cylinder

Color code used in Pharmaceutical Industries for Gas Cylinder

Different type of gas cylinders are widely used in pharmaceutical industries. Because most gas cylinders do not have any written information regarding their contents, knowing the Gas Cylinder color code is essential.

  • Purpose of the Gas Cylinder color codes are safety of user and to prevent mix-ups during handling.
  • For different gases, different colour combinations of shoulder and body are used. Gas cylinder colour codes may range from country to country.
  • Gas cylinders are used in various industries, including the pharmaceutical industry, to store and transport compressed gases. The color coding of gas cylinders is an essential aspect of gas cylinder safety, as it provides a quick and easy way to identify the contents of the cylinder and their potential hazards.
  • In the pharmaceutical industry, gas cylinders are used to store and transport various gases, including oxygen, nitrogen, carbon dioxide, and argon, among others. Each gas cylinder is color-coded based on the type of gas it contains. The color coding is standardized to ensure that there is no confusion or misunderstanding when handling gas cylinders.
  • Here are the color codes for some commonly used gas cylinders in the pharmaceutical industry:
    • Oxygen: green and white
    • Nitrogen: black
    • Carbon dioxide: gray
    • Argon: light blue
    • Hydrogen: red
    • Helium: brown
  • The color coding of gas cylinders also includes specific markings and labels that provide additional information about the gas cylinder’s contents, such as the gas name, pressure rating, and safety warnings. These markings and labels must be clearly visible and legible to ensure safe handling and storage of the gas cylinders.
  • It’s important to note that gas cylinders should be stored and handled with care to avoid potential hazards, such as leakage or explosions.
  • Gas cylinders should be stored in a cool, dry, and well-ventilated area away from heat sources, flammable materials, and direct sunlight. Proper handling techniques, including the use of appropriate safety equipment, should be followed to prevent accidents.

Following table shows the general concept for the coding:

Sr. No.Name of Gas CylinderColor Code for ShoulderColor Code for BodyUse
1OxygenWhiteBlackHospitals, Pharmaceuticals, Heating
2AirGreyGreyHospitals, Pharmaceuticals, Heating, Compression
3Carbon Dioxide (Co2)SilverBlackSoda or beer carbonation, for refrigeration, industrial purposes, medical and scientific facilities, and even indoor agriculture
4ChlorineYellowYellowWater treatment to disinfect drinking water, swimming pools, ornamental ponds and aquaria, sewage and wastewater
8AmmoniaRedYellow and BlackPharmaceuticals
9PropaneRed (with a large Diameter and “Propane” as nameRedhome heating, cooking, hot water heaters, gas fireplaces and clothes drying.
10ArgonBlue welding and casting industries, especially in the making of specialty alloys and mfg. titanium
11AcetyleneMaroonMaroonLargely used in Welding
Color Code used in Pharmaceutical Industries for Gas Cylinder

The hazard is shown by the colour of the gas cylinder, not by the filled gas. Yellow gas cylinders contain poisonous and corrosive gases, whilst red gas cylinders contain combustible gas. Inert gas cylinders are brilliant green, while oxidising gas cylinders are light blue.

Color Code for Gas Cylinder

gas cylinder with color code
gas cylinder color code usa

CGA codes

Because all regulators cannot be used on all cylinders, the Compressed Gas Association (CGA) has developed a foolproof coding system to prevent unintentional cylinder and regulator mix-ups. A CGA number code is assigned to each cylinder and regulator, and only cylinders with suitable numbers can be used together.

The CGA codes for a few popular gases are as follows:

  • Nitrogen, Helium, Argon – CGA codes 580
  • Oxygen: CGA codes 540
  • Air -CGA codes 590

Which type of gas regulator is suitable for Gas Chromatography?

1. Single-stage regulators:

  • It is used for constant pressure delivery of gas from cylinder to Gas Chromatograph

2. Dual-stage regulators:

  • It is two separate regulators in a single housing and is fixed to the gas cylinder valve.
  • The first step is used to lower the cylinder pressure, while the second stage is used to lower the ultimate pressure.
  • The two-stage regulator has the advantage of maintaining a constant pressure regardless of the inlet pressure, even when the cylinder pressure is decreased due to gas consumption.
Gas regulator is suitable for Gas Chromatography

Precautions during handling of gas cylinder in pharmaceuticals

Handling gas cylinders in the pharmaceutical industry requires strict adherence to safety protocols to ensure that accidents are prevented. Here are some precautions to take when handling gas cylinders in pharmaceuticals:

  1. Use appropriate safety equipment: Personal protective equipment (PPE) such as gloves, safety glasses, and respirators should be used when handling gas cylinders to protect against potential hazards such as gas leaks, spills, and explosions.
  1. Ensure proper storage: Gas cylinders should be stored in a cool, dry, and well-ventilated area away from heat sources, flammable materials, and direct sunlight. Gas cylinders should be secured in an upright position using appropriate restraints to prevent them from tipping over or falling.
  1. Check the cylinder label: Before handling a gas cylinder, always check the cylinder label to ensure that the contents match the intended use. Also, verify that the cylinder is within the expiration date and that it has not been damaged during storage.
  1. Transport cylinders with care: Gas cylinders should be transported using appropriate equipment such as a hand truck or cart, and not lifted or carried manually. Also, cylinders should be transported in an upright position to prevent damage to the cylinder or valve.
  1. Use proper handling techniques: Always use proper handling techniques when connecting or disconnecting gas cylinders to ensure that the valves are not damaged. Never use tools to tighten the valve, as this can cause damage to the cylinder and valve.
  1. Ventilate the area: When using gas cylinders in an enclosed area, ensure that the area is well-ventilated to prevent the buildup of gases that can cause asphyxiation or other health hazards.
  1. Report any issues: Any issues or concerns related to gas cylinders should be reported immediately to a supervisor or safety officer for further action.

In conclusion, handling gas cylinders in the pharmaceutical industry requires strict adherence to safety protocols to prevent accidents. By following the precautions listed above, employees can safely handle gas cylinders and prevent potential hazards in the workplace.

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