AS 1345:1995 pdf – ldentification of the contents of pipes, conduits and ducts

AS 1345:1995 pdf – ldentification of the contents of pipes, conduits and ducts

AS 1345:1995 pdf – ldentification of the contents of pipes, conduits and ducts.
AS 1596—LP as—storage and Handling—calls up AS 1345 for identification of liquid and vapour lines in LPG installations. In addition, an appendix illustrates contents markers which are recommended as supplementary identification for propane and butane pipelines.
AS 3000—SAA Wiring Rules—sets out the requirements for the colour marking of insulated and covered conductors under certain circumstances, including earthing conductors. The statutory or supply authority may also require that cable of different colours be used for identification purposes.
AS 1169—Minimizing of combustion hazards arising from the medical use of flammable anaesthetic agents—deals with the reduction of the risk of fire and explosion from the use of flammable medical agents, and the installation of medical gas supply systems. Identification of the pipes used in such systems is also covered.
AS 296—Medical gas systems—Installation and testing of non-flammable medical gas pipeline systems—provides for alternative means of identifying pipes for the reticulation of medical gases in hospitals.
AS 3500—National Plumbing and l)rainage Code—excludes single unit and certain small multiple-unit residential properties from the requirements of AS 1345.
AlP CP5—Code of Practice for Pipeline Identification —published by the Australian Institute of Petroleum. This Standard is widely used in the petroleum industry in petroleum terminals and bulk plants.
More practical colours exist as progressively desaturated or washed-out colours as they move toward the centre of the diagram. The lightness or darkness of colours can change in two ways, first by the increase or decrease of luminance factor (pure white is 1.0, pure black zero), and secondly by greater or lesser degree of saturation. Most lightening or darkening is a combination of the two.
Changes in saturation will sometimes also result in changes in perceived colour, for example brown is a desaturated form of yellow-orange (at low luminance factor levels), hut in most cases will result in a pastel shade of the original, e.g. red to pink. It will he noted that most of the AS 2700 colours are fairly well desaturated.
At the centre of the diagram is the absence of colour, i.e. white at high luminance factor, down through greys to black at zero luminance factor.
The system provides for an organized means of specifying colour tolerance. The colour spaces are adjusted to ensure that any colour lying in the space is generally perceived as having the named colour, whilst at the same time ensuring that there are large enough gaps between the spaces to avoid confusing one colour with the next.
Automatic hand-held colorimeters which will give direct readings of colour coordinates and luminance factor are available.