Refrigerant cylinder colours

[kannan.R]

In our ref.& ac field we have moved from CFC to HCFC and now we use mostly HFC refrigerants.
say R134A,R410A,R404A,R407C etc.

Some cases for R410A pink colour cylinders are used.

When i go thro some ref gas manufacturer s web site there is no specific mention of cylinder colours.Some site show different colours.

Question : Is there any standard color coding for refrigerant cylinders for reusable / disposable cylinders.and what is the reference standard/web site?

Thank you

R.Kannan:)

[nike123]

http://www.environmental-expert.com/resultEachArticle.aspx?cid=3892&codi=4359&idproducttype=6&level=0

http://www.bocindustrial.co.uk/bocindustrial/product_information/gas/supply_options/Refrigerant_Gas_Cylinder_Colours.asp