Color-coded pipe marking tapes ISO 14726, front view; includes flow direction arrows.

ISO 14726 and THR – Color codes for pipes and soil

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ISO 14726 and THR marking tapes are practical and effective solutions for technical identification and security signaling. Produced in high quality PVC with strong fixation adhesive, they meet the standards required for industrial, naval and commercial environments. The ISO 14726 line follows the international colors standard to identify fluids and pipe gases, promoting operational organization and safety. The THR line is suitable for soil demarcation, being useful in floors, circulation areas, glass and risk zones.

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Product Description Documentation

Features:

Color Coding: Complies with ISO 14726 standard for industrial and marine fluids.
High Adhesion: Strong bonding with natural or synthetic rubber adhesive.
Durability: Resistant to abrasion, chemicals, and weather conditions.
Versatile Application: Suitable for floors, pipelines, structures, signage, and glass surfaces.

Applications:

Pipeline Marking: For vessels, industrial facilities, and technical environments.
Floor Demarcation: Ideal for circulation areas, operational and logistics floors.
Hazard Zones: Highlights danger zones, operational limits, and safety signage.
Indoor and Outdoor Use: Excellent performance in various environmental conditions.

Reference Table of Colors and Codes according to ISO 14726 (IMPA):

Color	Eurosul Code	IMPA	ISO
BLACK	000753	IMPA 332140	ISO 5001
BLUE	000749	IMPA 332141	ISO 5008
BROWN	000756	IMPA 332142	ISO 5018
GREEN	000754	IMPA 332143	ISO 5031
GREY	000751	IMPA 332144	ISO 5038
MAROON	000756	IMPA 332145	ISO 5052
ORANGE	000752	IMPA 332146	ISO 5055
SILVER	000830	IMPA 332147	ISO 5101
RED	000755	IMPA 332148	ISO 5065
VIOLET	093097	IMPA 332149	ISO 5050
WHITE	000750	IMPA 332150	ISO 5079
YELLOW	000748	IMPA 332151	ISO 5091
FLOW DIRECTION ARROWS	000758	IMPA 332130	ISO 5099

Technical Specifications:

Material: PVC with high-adhesion backing
Fixing Type: Self-adhesive, ready to use
Resistance: Abrasion, chemicals, impact, and weather
Applicable Standard: ISO 14726 (for pipelines) – Sizes: 48 mm x 30 m (THR) / 50 mm x 30 m (ISO 14726)
Standard Dimensions: 50 mm x 30 m
Exception: Flammable Gases model (Code 005334) – 144 mm x 30 m

Tape Combinations according to ISO 14726 Groups:

WASTE MEDIA

Color Combination	Description	ISO	Eurosul Code
BLACK – BLUE – BLACK	BLACK WATER	ISO 5002	000560
BLACK – BROWN – BLACK	WASTE OIL / USED OIL	ISO 5003	000765
BLACK – GREEN – BLACK	BILGE WATER	ISO 5004	004208
BLACK – GREY – BLACK	EXHAUST GAS	ISO 5005	000039
BLACK – WHITE – BLACK	GREY WATER	ISO 5006	004865
BLACK – YELLOW – BLACK	SEWAGE – CONTAMINATED	ISO 5007	004866

FRESH WATER

Color Combination	Description	ISO	Eurosul Code
BLUE – BROWN – BLUE	FRESH WATER, SANITARY	ISO 5009	004128
BLUE – GREEN – BLUE	POTABLE WATER	ISO 5010	004867
BLUE – GREY – BLUE	DISTILLATE	ISO 5011	005998
BLUE – ORANGE – BLUE	GAS TURBINE WASH WATER	ISO 5012	092485
BLUE – GREY – BLUE	FEED WATER	ISO 5014	005999
BLUE – SILVER – BLUE	COOLING FRESH WATER	ISO 5015	004868
BLUE – VIOLET – BLUE	CHILLED WATER	ISO 5016	000239
BLUE – WHITE – BLUE	CONDENSATE	ISO 5017	000237

SEA WATER

Color Combination	Description	ISO	Eurosul Code
GREEN – BLUE – GREEN	DECONTAMINATION WATER	ISO 5032	005997
GREEN – BROWN – GREEN	SEA WATER, SANITARY	ISO 5033	005098
GREEN – VIOLET – GREEN	BALLAST WATER	ISO 5034	004870
GREEN – YELLOW – GREEN	COOLING SEA WATER	ISO 5035	004871

FUEL

Color Combination	Description	ISO	Eurosul Code
BROWN – BLACK – BROWN	HFO (HEAVY FUEL OIL)	ISO 5019	005370
BROWN – BLUE – BROWN	AVIATION FUEL	ISO 5020	092486
BROWN – VIOLET – BROWN	BIOLOGICAL FUEL	ISO 5022	092487
BROWN – WHITE – BROWN	GAS TURBINE FUEL	ISO 5023	005291
BROWN – YELLOW – BROWN	MDO (MARINE DIESEL FUEL)	ISO 5024	004869

FRESH WATER

Color Combination	Description	ISO	Eurosul Code
GREY – BLUE – GREY	OXYGEN	ISO 5039	002816
GREY – BROWN – GREY	INERT GAS	ISO 5040	005290
GREY – GREEN – GREY	NITROGEN	ISO 5041	003041
GREY – MAROON – GREY	REFRIGERANT	ISO 5042	002586
GREY – ORANGE – GREY	COMPRESSED AIR LOW PRESSURE	ISO 5043	004872
GREY – RED – GREY	COMPRESSED AIR HIGH PRESSURE	ISO 5045	004873
GREY – VIOLET – GREY	CONTROL AIR REGULATING AIR	ISO 5046	000564
GREY – WHITE – GREY	BREATHING AIR	ISO 5047	091323
GREY – YELLOW – GREY	BREATHING GAS	ISO 5048	092488

OIL OTHER THAN FUEL

Color Combination	Description	ISO	Eurosul Code
ORANGE – BLUE – ORANGE	THERMAL FLUID	ISO 5057	000301
ORANGE – GREEN – ORANGE	LUBRICATION OIL FOR GAS TURBINES	ISO 5059	092489
ORANGE – GREY – ORANGE	HYDRAULIC FLUID	ISO 5060	005097
ORANGE – WHITE – ORANGE	LUBRICATION OIL FOR STEAM TURBINES	ISO 5061	097403
ORANGE – VIOLET – ORANGE	LUBRICATION OIL FOR GEARS	ISO 5062	000040
ORANGE – YELLOW – ORANGE	LUB. OIL FOR INT. COMBUSTION ENGINES	ISO 5063	000565

STEAM

Color Combination	Description	ISO	Eurosul Code
SILVER – BLACK – SILVER	STEAM FOR HEATING	ISO 5102	092491
SILVER – WHITE – SILVER	EXHAUST STEAM	ISO 5106	092492
SILVER – YELLOW – SILVER	SUPPLY STEAM	ISO 5107	092492

AIR IN VENTILATION SYSTEMS

Color Combination	Description	ISO	Eurosul Code
WHITE – BLACK – WHITE	DISCHARGE AIR	ISO 5080	003957
WHITE – BLUE – WHITE	MECHANICAL SUPPLY AIR	ISO 5081	090849
WHITE – BROWN – WHITE	NATURAL EXHAUST AIR	ISO 5082	092494
WHITE – GREEN – WHITE	REFATMOSPHERIC AIR/REGIRANT	ISO 5083	001089
WHITE – GREY – WHITE	MECHANICAL EXHAUST AIR	ISO 5084	091216
WHITE – MAROON – WHITE	DECONTAMINATED SUPPLY AIR	ISO 5085	092495
WHITE – ORANGE – WHITE	MECHANICAL RECIRCULATED AIR	ISO 5086	092496
WHITE – SILVER – WHITE	MECHANICAL SUPPLY AIR – WARM	ISO 5087	092497
WHITE – RED – WHITE	SMOKE CLEARANCE	ISO 5088	092498
WHITE – VIOLET – WHITE	CONDITIONED SUPPLY AIR	ISO 5089	001195
WHITE – YELLOW – WHITE	NATURAL SUPPLY AIR	ISO 5090	092499

FIRE FIGHTING FIRE PROTECTION

Color Combination	Description	ISO	Eurosul Code
RED – GREEN – RED	FIRE FIGHTING WATER	ISO 5067	004874
RED – GREY – RED	FIRE FIGHTING GAS	ISO 5068	004875
RED – ORANGE – RED	SPRINKLER WATER	ISO 5069	002505
RED – VIOLET – RED	SPRAY WATER	ISO 5070	004877
RED – WHITE – RED	FIRE FIGHTING POWDER	ISO 5071	002915
RED – YELLOW – RED	FIRE FIGHTING FOAM	ISO 5072	002916