Pipe marking tape standards use color-coding and text to identify pipe contents (like water, oil, steam) and flow direction for safety, with major standards including ANSI/ASME A13.1 (US), BS 1710 (UK/International), and ISO 14726 (Marine/Offshore), requiring markings near valves, penetrations, and at regular intervals for clear hazard communication.
scheme with a primary color for the fluid type and contrasting color for text/arrows, often white background
with black text or vice versa, plus specific codes for hazards.
BS 1710 (UK): Defines specific colors for fluids (e.g., green for water, brown for oil, light blue for
compressed air) and requires markings near all service points.
ISO 14726 (Marine/Offshore): Specifies colors for various substances and additional codes for
detailed identification, crucial for ships and offshore platforms.
Common Pipe Identification Colors (Examples)
Marking Requirements
Green: Water
Brown: Oils, fuels, hydraulic fluids
Ochre/Yellow: Refrigerants
Light Blue: Compressed Air
Silver-Grey: Steam
Black: Drainage
Orange: Electrical conduits
Violet: Acids
Content Identification: Must clearly state the fluid/gas name or abbreviation (e.g., "STEAM",
"POTABLE WATER").
Flow Direction: Arrows on the tape show the direction of flow.
Placement: Markings are needed at regular intervals (e.g., every 3-5 meters), near valves, pumps, and