MANUFACTURING TECHNICAL INSTRUCTIONS - SAFETY
Subject: INSTRUCTIONS FOR THE IDENTIFICATION OF FACILITY PIPING SYSTEMS
ISSUE DATE:
9/1/1992 / EFFECTIVE DATE:
12/1/1988 / REVIEW DATE.
1/22/2003 / SERIES & NO.
SMI – 111
1.0 PURPOSE
To establish a uniform system to assist in identification of the types of materials conveyed in piping systems and their direction of flow. This is accomplished by specifying a uniform color and legend code to identify the general categories of piped materials. Use of this instruction will facilitate the identity the pipe content, thereby promoting safety and lessening chances of error, confusion, or inaction in times of emergency.
2.0 SCOPE
This instruction is limited to the identification of contents of facility piping systems. It does not apply to electrical conduit, pipes buried in the ground, labeling of hazardous materials, machine tools, dies or equipment. Refer to Coating System Standard Section 1 for color codes which apply to machine tools, dies and equipment.
3.0 REFERENCES
Federal and State Occupational Safety and Health Acts
A.N.S.I. A13.1 "Scheme for the Identification of Piping Systems"
4.0 FUNCTIONS AFFECTED
Advance Manufacturing Engineering
Plant Facilities Engineering
Employee Safety
Special Security Operations
Industrial Hygiene
5.0 OPERATIONS AFFECTED
DaimlerChrysler Corporation
6.0 INFORMATION AND INSTRUCTIONS
6.1 Definitions
Piping Systems: For the purpose of these instructions, piping systems shall include pipes of any kind, except electrical conduit, and, in addition, fittings, valves, and pipe coverings. Supports, brackets, or other accessories are specifically excluded from applications of this standard. Pipes are defined as conduits for the transport of gases, liquids, semiliquids, or plastics.
6.2 Classification of Materials
A. Materials Inherently Hazardous
1. Flammable or Explosive. This classification includes materials which are hazardous to life and/or property because they are easily ignited. It includes materials known as fire producers or explosives, such as gasoline, naphtha, thinners, kerosene, solvents, and oils.
2. Chemically Active or Toxic. This classification includes materials which are hazardous to life and/or property because they are corrosive, or are in themselves toxic or productive of poisonous gases, such as acids, alkalis (caustics), process waters, compressed gases, etc.
3. At Elevated Temperatures or Pressures. This classification includes materials which are hazardous to life and/or property when their release from the piping would occur in sudden outbursts, having a potential for inflicting injury or property damage by burns, impingement, or flashing to vapor state, such as steam, condensate water, cooling tower water, hot water, etc.
4. Radioactive. This classification includes those materials which are hazardous to life and/or property because they emit ionizing radiation.
B. Materials of Inherently Low Hazard
This classification includes all materials which are not hazardous by nature, and are near enough to ambient pressure and temperature that people working on systems carrying these materials run little risk through the release of these materials, such as drinking water. (Potable water)
Potable Water. Potable water is defined as water safe for human consumption supplied from a source approved by a local health department.
C. Fire Quenching Materials
This classification includes sprinkler systems and other piped fire fighting or fire protection equipment. This includes water, chemical foam, CO2, etc.
6.3 Method of Identification – Refer to 7.2 Piping Label Standards Chart
6.3.1 Legend
Legend identifies pipe content. Positive identification of the content of a piping system shall be by lettered legend giving the name of the contents in full or unabbreviated text (see Table 1). Arrows shall be used to indicate direction of flow. Use legend to identify contents exactly .Refer to 7.2 Piping Label Standards Chart.
Legend shall be brief, informative, pointed, and simple for greatest effectiveness. Legends shall be applied close to valves ( maximum space of 12 inches) and adjacent to changes in direction, branches, and where pipes pass through walls or floors, and at frequent intervals on straight pipe runs (sufficient to identify clearly). Identification may be accomplished by stenciling, the use of tape, or markers. In any situation, the number and location of identification markers shall be based on the particular piping system.
6.3.2 Pipe Markers
The identification of the pipes with pipe markers is the most economical. The background for the legend must conform to Table #2. These pipe markers may be the waterproof fabric, which is a heatresistant, selfsticking type, or the waterproof reflective type. A stencil shall be used if an un-insulated steam pipe is identified.
The marker, if possible, should be wrapped around and attached to itself. A sodium silicate coating can be given each marker, if desired. Tables 2 and 3 illustrate the size and color to be used for the legend.
Color to be used to identify the characteristic properties of the content are shown in Table #2. Color may be displayed on or contiguous to the piping by any physical means, but its use shall be in combination with legend. Color may be used in continuous total length coverage or in intermittent displays.
Pipe lines shall be identified at changes in direction (tee's, el's, etc.), within 1’ of valves, and when they extend into or out of walls, floors, or equipment. The lines should be identified on straight runs at least every 50 feet. The intervals may be equal or unequal. It is best to change the interval so that markers are well spaced rather than have two (2) markers close together at the end or near a change of direction (see Figure 1).
Table 2:
Classification of Materials and
Designation of Colors
Color Color of
Classification Legend Field Letters for
Materials Inherently Hazardous
Flammable or Explosive Yellow Black
Chemically Active or Toxic Yellow Black
Extreme Temperatures or Pressures Yellow Black
Radioactive Yellow Black
Materials of Inherently Low Hazard
Liquid or Liquid Admixture Green White
Gas or Gaseous Admixture Blue(Dk) White
Cold Potable Water Green White
Fire Quenching Materials
Water, Foam, Co2, etc. Red White
6.3.3 Fire Protection Systems
Fire Protection Systems on grid system fire protection piping shall be painted red per color legend and will not require label identification or directional arrows. Each grid system fire protection zone shall be identified with a sign attached to the base of the riser showing the zone number and a white on red legend located approximately six feet above the floor on the riser stating “RISER # “. Additionally, four signs per zone shall be attached by chains to the upper section of the riser with the three remaining signs randomly located hanging from the zone branch lines (truss area of the building).
Note: This system of identification is not retroactive over nongrid system labeling practice:
6.3.4 Type and Size of Letters
Maximum contrast shall be provided between color field and legend for readability. Table 2 gives directions for color of legend on various color fields covered in this instruction. Use of letters of standard style, in sizes ½", (13mm) and larger is recommended. Refer to Table 3 for specific size recommendations. For identification of materials in pipes of less than 3/4" (19mm) in diameter, and for valve and fitting identification, the use of a permanently legible tag is recommended.
Attention shall be given to visibility with reference to pipe markings. Where pipe lines are located above the normal line of vision, the lettering shall be placed below the horizontal centerline of the pipe.
6.3.5 Identifying Direction of Flow
The direction of flow markers should be the same material and color as the pipe content markers. A direction marker is used with each pipe content marker, and the arrow always points away from the marker. On grid system fire protection systems, flow direction is not required.
The following sketches depict some of the pipe connections which may be found in Chrysler facilities. These figures are shown to illustrate the method to be used to identify piping systems.
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7.0 REFERENCES
7.1 Chrysler Safety Color Specifications and Procurement Code No.'s
Spec. # Color NP Code No.*
NPVP 7.5R 4/14 Safety Red 65 XXX 6140
NPVP 3.75Y 8.5/12 Safety Yellow 65 XXX 6830
NPVP 7.5G 4/8 Safety Green 65 XXX 5630
NPVP 2.5PB 3/10 Safety Blue(D) 65 XXX 4988
NPVP N.O.75 Black 65 XXX 4730
NPVP N.9.5. White 65 XXX - 6550
NPVP 2.5 PB 7/6 Blue (Light) 65 XXX 4780
*(XXX) - Use appropriate intermediate number (151, 152, 153, 154, 155) which identifies the supplier:
151 - Sherwin Williams
152 - Standard Paint
153 - Glidden Paint (1CI)
154 - Dupont
155 - PPG Industries
7.2 Piping Label Standard
PIPING LABEL STANDARD /Note: Prior to distributing this list for any reason (bidding/purchasing or installing identification) at any location, obtain that location's current Piping Identification label standard. In some instances different, acceptable text and/or color fields may be in use (e.g. City Water or Potable Water, Domestic Hot Water vs Potable Hot Water, etc.). If the current identification differs from this list, and has been deemed acceptable, match what is currently in use for all new installations.
Pipe Contains / Legend # / Label Color / Arrow & Letter Color
Anolyte / ANOLYTE / SAFETY YELLOW / BLACK
Antifreeze / ANTIFREEZE / SAFETY YELLOW / BLACK
Automatic Transmission Fluid / AUTO. TRANS. FLUID / SAFETY YELLOW / BLACK
Base Coat Purge Solvent / BC PURGE SOLVENT / SAFETY YELLOW / BLACK
Base Coat Spray Booth Water Return / BC BOOTH WATER RETURN / SAFETY YELLOW / BLACK
Base Coat Spray Booth Water Supply / BC BOOTH WATER SUPPLY / SAFETY YELLOW / BLACK
Boil Out Acid / BOIL OUT ACID / SAFETY YELLOW / BLACK
Booth Cleaning Solvent / BOOTH CLEANING SOLVENT SUPPLY / SAFETY YELLOW / BLACK
Brake Fluid / BREAK FLUID / SAFETY YELLOW / BLACK
Carbon Dioxide Welding Shield Gas / CO2 / DARK BLUE / WHITE
Chilled Water Return / CHILLED WATER RETURN / GREEN / WHITE
Chilled Water Supply / CHILLED WATER SUPPLY / GREEN / WHITE
Clear Coat Purge Solvent / CC PURGE SOLVENT / SAFETY YELLOW / BLACK
Clear Coat Spray Booth Water Return / CC BOOTH WATER RETURN / SAFETY YELLOW / BLACK
Clear Coat Spray Booth Water Supply / CC BOOTH WATER SUPPLY / SAFETY YELLOW / BLACK
Compressed Air / COMPRESSED AIR / DARK BLUE / WHITE
Compressed Air, Dry / DRY COMPRESSED AIR / DARK BLUE / WHITE
Condensate / CONDENSATE / SAFETY YELLOW / BLACK
Cooling Tower Water Return / TOWER WATER RETURN / GREEN / WHITE
Cooling Tower Water Supply / TOWER WATER SUPPLY / GREEN / WHITE
Deionized Water, Virgin / VIRGIN DI WATER / GREEN / WHITE
DI Antiscalent / ANTI-SCALENT / SAFETY YELLOW / BLACK
DI pH Adjuster / PH ADJUSTER / SAFETY YELLOW / BLACK
Diesel / DIESEL / SAFETY YELLOW / BLACK
E-Coat (Stage 1) / E-COAT / SAFETY YELLOW / BLACK
E-Coat DI Downtime Misting / DI DOWNTIME MISTING / SAFETY YELLOW / BLACK
E-Coat DI Rinse (Stage 6 & 7) / E-COAT DI RINSE / SAFETY YELLOW / BLACK
E-Coat Drain / E-COAT DRAIN / SAFETY YELLOW / BLACK
E-Coat pH Adjuster / ACETIC ACID / SAFETY YELLOW / BLACK
E-Coat Pigment / E-COAT PIGMENT / SAFETY YELLOW / BLACK
E-Coat Resin / E-COAT RESIN / SAFETY YELLOW / BLACK
E-Coat Ultra Filter Feed / ULTRA FILTER FEED / SAFETY YELLOW / BLACK
E-Coat Ultra Filter Return / ULTRA FILTER RETURN / SAFETY YELLOW / BLACK
E-Coat Virgin DI Water (Stage 8) / E-COAT VIRGIN DI / GREEN / WHITE
E-Coat Waste / E-COAT WASTE / SAFETY YELLOW / BLACK
Engine Oil / ENGINE OIL / SAFETY YELLOW / BLACK
Fire Lines & Sprinklers / FIRE PROTECTION / RED / WHITE
FM200 Extinguishing / FM200 / RED / WHITE
Freon / FREON / SAFETY YELLOW / BLACK
Gasoline / GASOLINE / SAFETY YELLOW / BLACK
Glycerol / GLYCEROL / SAFETY YELLOW / BLACK
Grease / GREASE / SAFETY YELLOW / BLACK
Heat Exchanger Cleaner / HEX ACID / SAFETY YELLOW / BLACK
Hot Water Return / HOT WATER RETURN / SAFETY YELLOW / BLACK
Hot Water Supply / HOT WATER SUPPLY / SAFETY YELLOW / BLACK
Hydraulic Oil (R.T.O.) / HYDRAULIC OIL / SAFETY YELLOW / BLACK
Industrial Waste / INDUSTRIAL WASTE / SAFETY YELLOW / BLACK
Lubrication Oil (R.T.O.) / LUBRICATION OIL RETURN / SAFETY YELLOW / BLACK
Lubrication Oil Supply (R.T.O.) / LUBRICATION OIL SUPPLY / SAFETY YELLOW / BLACK
Naphtha / NAPHTHA / SAFETY YELLOW / BLACK
Naphtha Recovery / NAPHTHA RECOVERY / SAFETY YELLOW / BLACK
Natural Gas / NATURAL GAS / SAFETY YELLOW / BLACK
Paint Lines Return / BC PAINT # X RETURN or CC PAINT # X RETURN / SAFETY YELLOW / BLACK
Paint Lines Supply / BC PAINT # X SUPPLY or CC PAINT # X SUPPLY / SAFETY YELLOW / BLACK
Permeate Rinse (Stage 2, 3, 4 & 5) / PERMEATE RINSE / SAFETY YELLOW / BLACK
Permeate, Virgin / VIRGIN PERMEATE / SAFETY YELLOW / BLACK
Phosphate / PHOSPHATE / SAFETY YELLOW / BLACK
Phosphate Additive Chemical Feed / ADDITIVE CHEM FEED / SAFETY YELLOW / BLACK
Phosphate Bulk Chemical / PHOSPHATE BULK CHEM / SAFETY YELLOW / BLACK
Phosphate Chemical Feed Replenisher / REPLENISHER CHEM FEED / SAFETY YELLOW / BLACK
Phosphate Chemseal Chemical Feed / CHEMSEAL CHEM FEED / SAFETY YELLOW / BLACK
Phosphate Cleaner (Stage 1 & 2) / PHOSPHATE CLEANER / SAFETY YELLOW / BLACK
Phosphate Cleaner Chemical Feed / CLEANER CHEM FEED / SAFETY YELLOW / BLACK
Phosphate Conditioner Chemical Feed / CONDITIONER CHEM FEED / SAFETY YELLOW / BLACK
Phosphate Deluge / PHOSPHATE DELUGE / SAFETY YELLOW / BLACK
Phosphate DI Rinse (Stage 8A, 8B & 9) / PHOSPHATE DI RINSE / SAFETY YELLOW / BLACK
Phosphate Downtime Misting / DOWNTIME MISTING / SAFETY YELLOW / BLACK
Phosphate Drain / PHOSPHATE DRAIN / SAFETY YELLOW / BLACK
Phosphate Pre-Wipe Bulk Chemical / PRE-WIPE BULK CHEM / SAFETY YELLOW / BLACK
Phosphate Pre-Wipe Chemical Injection / PRE-WIPE CHEM FEED / SAFETY YELLOW / BLACK
Phosphate Process (Stage 5) / PHOSPHATE PROCESS / SAFETY YELLOW / BLACK
Phosphate Rinse (Stage 3A, 3B, 6A & 6B) / PHOSPHATE RINSE / SAFETY YELLOW / BLACK
Phosphate Sealing (Stage 7) / PHOSPHATE SEALING / SAFETY YELLOW / BLACK
Phosphate Storage Return / PHOSPHATE STORAGE RETURN / SAFETY YELLOW / BLACK
Phosphate Storage Supply / PHOSPHATE STORAGE SUPPLY / SAFETY YELLOW / BLACK
Phosphate Virgin DI Water (Stage 9) / PHOSPHATE VIRGIN DI / GREEN / WHITE
Phosphate Wetting Sprays / WETTING SPRAYS / SAFETY YELLOW / BLACK
Potable Water (Cold) / POTABLE WATER or CITY WATER / GREEN / WHITE
Potable Water (Hot) / DOMESTIC HOT WATER or HOT POTABLE WATER or HOT CITY WATER / SAFETY YELLOW / BLACK
Power Steering Fluid / POWER STEERING FLUID / SAFETY YELLOW / BLACK
Process Water / PROCESS WATER / SAFETY YELLOW / BLACK
Pump Seal Flush / PUMP SEAL FLUSH / SAFETY YELLOW / BLACK
Pumped Condensate / CONDENSATE / SAFETY YELLOW / BLACK
Safety Shower / SAFETY SHOWER / GREEN / WHITE
Sealer / SEALER / SAFETY YELLOW / BLACK
Sodium Hydroxide / SODIUM HYDROXIDE / SAFETY YELLOW / BLACK
Spray Mastic / MASTIC / SAFETY YELLOW / BLACK
Steam / STEAM / SAFETY YELLOW / BLACK
Transmission Fluid / TRANSMISSION FLUID / SAFETY YELLOW / BLACK
Vacuum / VACUUM / DARK BLUE / WHITE
Waste Solvent / WASTE SOLVENT / SAFETY YELLOW / BLACK
Welder Water Return / WELD WATER RETURN / GREEN / WHITE
Welder Water Supply / WELD WATER SUPPLY / GREEN / WHITE
Windshield Washer Fluid / WINDSHIELD WASHER FLUID / SAFETY YELLOW / BLACK
S A F E T Y
SMI-111, Page 9 of 1