What is o2 cleaning?
Oxygen cleaning is a method of cleaning equipment intended for use with either liquid or gaseous oxygen. When being used for medical purposes, oxygen cleaning removes contaminants that can cause direct bodily harm.
What is ASTM G93?
ASTM G93 – 03(2011) Standard Practice for Cleaning Methods and Cleanliness Levels for Material and Equipment Used in Oxygen-Enriched Environments.
Why is oxygen cleaning important?
By far, the biggest and most crucial point of oxygen cleaning is to remove the potential of fire, and even more so, the potential for an explosion to occur. Many of the ingredients used in drug solids are combustible, especially when in dust form.
How do you clean oxygen service?
Some best practices for oxygen system assembly include:
- Always assemble oxygen components in a clean area.
- Use visually clean tools.
- Prefer clean, powder-free gloves.
- Avoid touching oxygen-clean surfaces with leather work gloves or bare hands.
- Keep piping components bagged or sealed until ready for install.
How do you clean copper fittings for oxygen?
These surfaces shall be cleaned by washing in a clean, hot water/alkaline solution such as sodium carbonate or trisodium phosphate (1 lb. to 3 gal. of potable water). Interior surfaces shall be thoroughly scrubbed and rinsed with clean, hot, potable water.
How do you clean oxygen cylinders?
Soak in a 1-part white vinegar to 3-parts water solution for 20 minutes, rinse thoroughly and let air dry. Store in a plastic bag when not in use. Always keep a spare replacement on hand. Replace the oxygen mask every month or more often if cracked, broken or discoloured.
What do you need to know about oxygen cleaning services?
Oxygen cleaning services can be defined as specialized cleaning for components, equipment, piping, and systems used in the production, storage, distribution and use of gaseous oxygen (GOX) and liquid oxygen (LOX). LOX is the liquid form of elemental oxygen (O 2 ).
How big of a cleanroom do I need for oxygen?
Cleanliness criteria can be less than 1 mg/sq foot for oxygen systems, but typically 1 mg/sq foot of NVR represents the more common lower limit range of the requirement.
How does oxygen cleaning reduce the chance of autoignition?
Oxygen cleaning reduces contaminants that can lead to a fire or potential explosion. It also reduces the chance of autoignition at a temperature much lower than expected by material selection. Combustion in systems that contain enriched oxygen requires only fuel and an ignition source because the gaseous or liquid oxygen is the oxidizer.
What’s the best way to clean oxygen piping?
Piping is normally cleaned with immersion or circulation techniques. Circulation is also used frequently for oxygen-clean cleaning on site. Alternatively brushes, or in case of very large areas, sprayers can be used.