#sample cylinder

The equipment used in the factory will have certain safety hazards. We should plan corresponding measures in advance to prevent it. So sample cylinders are no exception. In today's article, we will tell you five preventive measures against the safety hazards of sample cylinders. I hope you can learn more about sample cylinders.

1. Know and understand gas properties

Know and understand the properties, proper uses, and safety precautions of your gases before using them.

2. Know and understand the gas package

Know and understand the package for each of the gases you use. The package consists of two distinctive parts—the cylinder and the cylinder valve. Again, consult the appropriate MSDS materials and Safetygrams for your specific products.

3. Check your equipment

Before lines and equipment are used, leak-check and evaluate their ability to contain full cylinder pressure. The leak check should be performed with an inert gas, and care should be taken not to overpressurize any components of the system. If the system is not rated for full cylinder pressure, a pressure-reducing regulator must be used and the system should be protected with a pressurerelief device. Leak-check the system at its working pressure. Be certain that materials of construction are compatible with the gases being used.

4. Develop emergency plans

It is necessary that all facilities using hazardous materials develop emergency plans. Be aware of the potential hazards of the gases being stored and used, and plan for emergencies. Practice implementing emergency plans so that all contingencies are covered. Assign responsibilities and lines of authority. Coordinate with local hospitals and fire departments and inform them of the gases in use so they can be prepared with the needed expertise, equipment, and medical support if an emergency occurs.

5. Provide personal protection

It is necessary to define and provide personal protective equipment (PPE) for routine operations, as well as for emergencies. It is important to establish a policy that requires personnel to wear the proper PPE for each job. Gloves, face protection, and sensible work uniforms for routine tasks, as well as selfcontained breathing apparatus (SCBA) and special protective clothing required for emergencies, should be made available. In addition, gas cabinets, eye washes, safety showers, and fire extinguishers should be considered when using hazardous materials. Everyone involved must be trained in the proper use of all necessary PPE. Train personnel to recognize when that equipment is needed.

Since sample cylinders are pressure vessels, the following precautions must be exercised during storage to prevent injuries caused by suffocation, fire, explosion, high pressure, and incorrect operation of compressed gas cylinders.

So we should explicitly prohibit the following behaviors:

1. The storage temperature of the sample cylinder is allowed to exceed 52℃.

2. Smoking or open flames are allowed in the storage areas of oxides or flammable gases.

3. Expose the sample cylinder to a corrosive environment.

Next, let’s talk about how to properly store and operate sample cylinders.

1. Store sample cylinders vertically.

2. Secure the sample cylinder when storing, handling or using.

3. Store sample cylinders in a dedicated area.

4. Separate full and empty bottles.

5. Store sample cylinders in a dry, cool, weather-free place, and away from combustible materials.

6. Separate flammable or combustible materials and oxides by at least 20 feet.

7. Monitor the air in areas where gas may be exhausted and accumulated.

8. Use a first-in first-out inventory system to prevent full bottles from being stored for too long.

9. Only store the amount of compressed gas required for the specific application.

10. sample cylinders are stored away from people's frequent access and emergency exits.

11. Provide adequate access for sample cylinder operations.

12. Regularly or at least weekly, check the stored sample cylinders for any signs of leakage or problems.

13. Restrict access to the sample cylinder storage area.

14.Prevent the sample cylinder from contacting wet or damp ground.

Many customers have caused the gas leakage of the sample cylinder due to the long storage time of the sample cylinder, collision during use or transportation, and there are several simple methods to detect whether the sample cylinder is leaking!

There are 4 ways to check gas leakage in sample cylinders:

1. Sensory method: adopt the method of hearing, nose and smell. If you hear a "sizzling" sound from the sample cylinder or smell a strong pungent odor or peculiar smell, it can be regarded as a leak. Although this method is very simple, it also has its limitations. It is definitely not applicable to toxic gases and certain flammable gases.

2. Smear method: This is also the most commonly used method for us to check whether the sample cylinder is leaking. It is to wipe soapy water on the leak detection part of the sample cylinder. If bubbles occur, it can be judged as a leak. This method is widely used and accurate, and it is strictly forbidden to use it when detecting leaks in oxygen cylinders, because soapy water contains grease, which will oxidize violently when it comes in contact with oxygen.

3. Balloon expansion method: Use a soft rubber tube to put on the air outlet of the sampling gas cylinder, and connect the other end to the balloon. If the balloon swells, it is considered to be leaking. This method is most suitable for leak detection of highly toxic gas and flammable gas.

4. Chemical method: The principle of this method is to touch certain chemicals prepared in advance with the gas at the leak detection point. If a chemical reaction occurs and exhibits certain appearance characteristics, it is determined to be a leak. For example, check the leak detection point with cotton dipped in ammonia water to check the ethyl chloride cylinder. If the chlorine white mist is generated, it will prove the leak; check the liquid ammonia cylinder with the red litmus paper moistened with water, close to the gas cylinder leak point, if the test paper is red It turns blue to indicate a leak. This method is only used for leak detection of certain highly toxic gases.