AS 4484:2016 pdf free download – Gas cylinders for industrial, scientific,medical and refrigerant use—Labelling and colour coding

AS 4484:2016 pdf free download – Gas cylinders for industrial, scientific,medical and refrigerant use—Labelling and colour coding.
4.2 Location and durability
4.2.1 Locailon of label(s)
The required label(s) should he located as close as practicable to the valve end of each gas cylinder or to the outlet on a bundle of cylinders.
On a composite cylinder a complying label may be applied under a clear outer resin layer or under a clear outer filament winding.
4.2.2 Durability a/labels
Each label and their means of attachment shall be of material that ensures the label will remain in place and be legible after normal exposure to conditions incident to transport, storage and use.
4.3 Body labels
Body labels may be used on the body of a cylinder to identify the name and/or the chemical symbol of the contained gas.
When used, body labels shall he applied to two opposing sides of a cylinder, unless the water capacity of the cylinder is less than 15 L where a single body label may be applied.
For bundles of cylinders a body label shall be applied to a minimum of one cylinder on at least two opposite sides of the bundle.
The body label text shall be in either black or white, with the colour being selected to contrast with the body colour.
Both labels shall be clearly visible.
4.4 Special labelling
Where the contents of the cylinder have a special condition, such as a specific storage temperature, or the constituents are in special or laboratory proportions, such as multi-component gas mixtures, the cylinder shall be identified in accordance with one of the following:
(a) By labelling to show the special condition, and the special or analysed proportions.
(b) By a label indicating that the contents are a special gas mixture and referring to a
report that is attached to the cylinder.
The major constituent or balance gas need not have the percentage marked and should be shown as, ‘IN _____________ (name of balance gas)’ or ‘BALANCE______________ (name of balance gas)’. The minor constituents should have their proportions given as a percentage, or p.p.m. (volume) or other means as appropriate.
The order of hazard from least to greatest shall be taken as follows:
(a) Non-flammable—Non-toxic (least).
(h) Oxidizing.
(c) Flammable, or hydrocarbon.
(d) Toxic.
(e) Toxic and flammable (greatest).
NOTE: Toxic and corrosive are to he regarded as equivalent in this Standard.
Where the cylinder contents comprise more than five constituents, this shall be indicated by the top band being painted in the colour Mustard. The body colour shall be the major constituent. Where equal proportions occur, the most hazardous is to be the body colour. Band I (and 2 if required) shall identify the characteristic or combination of characteristics for the total mixture, given in Table 1 and detailed in Figures 1(A) and 1(B) as appropriate.
Examples of colour identification for mixtures include the following:
(1) ‘A’ percent carbon dioxide in argon (where A < 50): (A) Band—Green Grey. (B) Body Peacock Blue. (ii) ‘A’ percent hydrogen in nitrogen (where A < 50): (A) Band—Signal Red. (B) Body—Pewter. (iii) ‘A’ percent Ethylene oxide in helium (where A < 50): (A) Band—Buff. (B) Body—Brown. (iv) ‘A’ percent carbon dioxide and ‘B’ percent hydrogen sulphide (where A> B and balance of nitrogen> A):
(A) Band 3, (top) Golden Yellow. (See Note.)
(B) Band 2, Signal Red. (Sec Note.)
(C) Band I. (bottom) Green Grey.
(D) Body, Pewter.
NOTE: The colour code assigned to hydrogen sulphide is Signal Redi(iolden Yellow and so
Bands 2 and 3 arc used.