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JOB SPECIFICATION
FOR SURFACE PREPARATION
AND PROTECTIVE COATING
JOB SPECIFICATION No.
A307-000-06-42-PLS-01
Rev.0
PAGE 40 OF 49
19.3 Colour Bands
Location of colour bands:
At Battery Limits
Intersection points & change of direction points in piping
Midway of piping section, near valves, across culverts
At 50 M interval on long stretch pipes
At starting and termination points.
Minimum width:
NB
Width
3” and below 75 mm
Above 3” to 6”
NB X 25 MM
Above 6” to 12” NB X 18 MM
Above 12”
NB X 15 MM
!!! Note:
For insulated pipes, NB indicates
OD of the insulation
Sequence :
Colour bands shall be arranged in sequence showing Table above and the sequence follows the
direction of flow. The width of the 1 st Band to 2 nd band is 4:1,
!!! Note : Wherever deemed required by Process Department or Safety, pipes handling hazardous
substances will be given hazard marking of 30 mm wide diagonal stripes of Black and Golden Yellow
as per IS : 2379.
19.4 Special Camouflage Painting for Uninsulated Crude and Product Storage Tanks.
Paint specification shall be as per standards.
Camouflage painting scheme for Defense requirement in irregular patches will be applied with
3 colours
Dark Green : Light green : Medium Brown
5 : 3 : 2
The patches shall be irregular and asymmetrical and inclined at 30 to 60 Degrees.
Patches should be continuous at surface meeting lines / points.
Slits / holes shall be painted in dark green shade.
Width of patches shall be 1 to 2 meters.
19.5 Identification Markings on Equipment / Piping
Equipment tag Numbers shall be Stenciled / neatly painted using normal 'Arial' Lettering
Style on all equipment and piping (Both insulated & uninsulated) after completion of all paint
Format No. 8-00-0001-F1 Rev. 0
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Page 279 of 291