OAR 437-004-9850
Pipe Labelling


(1)

Scope and application. This rule applies to all pipes and piping systems that contain hazardous substances, transport substances in a hazardous state, or that use asbestos as insulation material. This rule does not apply to buried pipe.

(2)

Definitions:

(a)

Asbestos: includes chrysoltile, amosite, crocidolite, tremolite asbestos, anthophyllite asbestos, actinolite asbestos and any of these minerals that have been chemically treated or altered.

(b)

Hazardous substances: any substance that is a physical or health hazard.

(c)

Health hazard: A chemical that is classified as posing one of the following hazardous effects: acute toxicity (any route of exposure); skin corrosion or irritation; serious eye damage or eye irritation; respiratory or skin sensitization; germ cell mutagenicity; carcinogenicity; reproductive toxicity; specific target organ toxicity (single or repeated exposure); or aspiration hazard. The criteria for determining whether a chemical is classified as a health hazard are detailed in Appendix A to 1910.1200 - Health Hazard Criteria, in Division 2/Z.

(d)

Physical hazard: A chemical that is classified as posing one of the following hazardous effects: explosive; flammable (gases, aerosols, liquids, or solids); oxidizer (liquid, solid or gas); self-reactive; pyrophoric (liquid or solid); self-heating; organic peroxide; corrosive to metal; gas under pressure; or in contact with water emits flammable gas. The criteria for determining whether a chemical is classified as a physical hazard are detailed in Appendix B to 1910.1200 — Physical Hazard Criteria, in Division 2/Z.

(e)

Piping system: includes single or multiple pipes of any kind in addition to valves and pipe coverings.

(3)

Labeling.

(a)

Label pipes that contain hazardous substances or transport substances in a hazardous state according to (A), (B), (C) and (D) below or otherwise identify them according to (3)(b) below:

(A)

Positive identification of the hazardous contents of pipe must be by lettered labels. The label must give the name of the contents in full or abbreviated form.

(B)

The label must identify the contents with enough detail to identify the hazard.

(C)

Label wording must be brief, informative and simple.

(D)

Use stenciling, tape, adhesives, markers or effective alternative means for labels.
NOTE: Substances “transported in a hazardous state” typically refer to the hazards of pressure and temperature. Examples include compressed air, hot water or steam, and cryogenic liquids or gases.

(b)

The employer may use an alternative warning method, instead of affixing labels to individual pipes, if that method identifies the pipe(s) to which the warning applies and conveys the hazard information required by this rule. Examples include signs, placards, process sheets, or schematics posted on walls in the work area; or other such written materials. These alternative written materials must be readily accessible to the employees in their work areas during each shift.
NOTE: See OAR 437-004-9800 (Hazard Communication Standard for Agricultural Employers)(5) Labels and other forms of warning for other related requirements.

(c)

Label pipes or piping systems that use asbestos insulation material to include the following statements:

(A)

DANGER CONTAINS ASBESTOS FIBERS
MAY CAUSE CANCER DO NOT BREATHE DUST AVOID CREATING DUST

(B)

Or, otherwise identify them according to (3)(b), above.
NOTE: See OAR 437-004-9800 (Hazard Communication Standard for Agricultural Employers), Hazard Communication for Agricultural Employers and OAR 437-004-9050 (Asbestos), Asbestos, for additional requirements.

(4)

Location of labeling.

(a)

Place the labeling near valves or flanges; adjacent to changes in direction or branches; where pipes pass through walls, floors or ceilings; and where confusion about the contents of the piping system may occur.

(b)

Labeling must be applied, at a minimum, at the beginning and end of continuous pipe runs.

(c)

For asbestos insulation, labeling on unobstructed continuous pipe runs must be at least every 75 feet.

(5)

Visibility.

(a)

Where pipes are located above or below the normal line of vision, put the lettering below or above the horizontal centerline of the pipe, to facilitate visibility.

(b)

If pipes are inaccessible, or at a distance that makes clear identification of the letters on a label difficult, use alternatives to labeling that meet all other requirements of this rule.
[ED. NOTE: Illustrations referenced are available from the agency.]
[ED. NOTE: To view attachments referenced in rule text, click here to view rule.]
437–004–0001
Application
437–004–0002
Scope
437–004–0003
Exclusive Coverage
437–004–0005
Access to Employee Exposure and Medical Records
437–004–0099
General Standards
437–004–0100
Universal Definitions
437–004–0150
Standards Organizations
437–004–0240
Safety Orientation for Seasonal Workers
437–004–0251
Safety Committees and Safety Meetings
437–004–0310
Working Surfaces
437–004–0320
Guarding Floor and Wall Openings and Holes
437–004–0330
Fixed Industrial Stairs
437–004–0340
Portable Ladders
437–004–0350
Orchard Ladders
437–004–0360
Fixed Ladders
437–004–0370
Scaffolding
437–004–0380
Manually Propelled Mobile Ladder Stands and Scaffolds (Towers)
437–004–0390
Other Working Surfaces
437–004–0405
Exits and Emergency Action Plan
437–004–0450
Emergency Action Plan
437–004–0570
Manlifts
437–004–0610
Ventilation
437–004–0630
Noise Exposure
437–004–0650
Ionizing Radiation
437–004–0710
Compressed Gases
437–004–0715
Acetylene
437–004–0716
Oxygen
437–004–0717
Hydrogen
437–004–0720
Flammable and Combustible Liquids
437–004–0725
Spray Finishing
437–004–0770
Explosives and Blasting Agents
437–004–0780
Storage and Handling of Liquefied Petroleum Gases
437–004–0790
Use of Liquefied Petroleum Gas or Natural Gas in Fields and Orchards
437–004–0800
Storage and Handling of Anhydrous Ammonia
437–004–0950
Hazardous Waste Operations and Emergency Response (HAZWOPER)
437–004–1005
General Requirements for Protective Equipment
437–004–1020
Personal Fall Protection
437–004–1030
Work Clothing
437–004–1035
Eye and Face Protection
437–004–1041
Respiratory Protection
437–004–1050
Head Protection
437–004–1060
Hand, Foot, and Extremity Protection
437–004–1070
Working Underway on Water
437–004–1075
Working Over or In Water
437–004–1105
Sanitation
437–004–1110
Field Sanitation for Hand Labor Work
437–004–1115
COVID-19 Workplace Requirements for Employer-Provided Labor Housing
437–004–1120
Agricultural Labor Housing and Related Facilities
437–004–1140
Lighting
437–004–1150
Safety Colors for Marking Physical Hazards
437–004–1180
Accident Prevention Signs
437–004–1250
Confined and Hazardous Spaces
437–004–1260
Manure Lagoons, Storage Ponds, Vats, Pits and Separators
437–004–1275
The Control of Hazardous Energy (Lockout/Tagout)
437–004–1305
Medical Services and First Aid
437–004–1430
Sources of Fire
437–004–1440
Required Postings
437–004–1450
Extinguishers
437–004–1460
Fire Prevention Plan
437–004–1470
Employee Equipment and Training
437–004–1505
Air Receivers and Pressure Systems
437–004–1525
Boilers and Steam Systems
437–004–1610
General Requirements
437–004–1630
Conveyors
437–004–1670
Automotive Hoists
437–004–1680
Storage of Hazardous Chemicals
437–004–1700
Forklifts and Other Powered Industrial Trucks
437–004–1750
Helicopters
437–004–1805
Rope, Chain, Rigging, and Hoists
437–004–1825
Tackle and Hoisting Equipment
437–004–1910
General Equipment Guarding
437–004–1940
Farm Field Equipment
437–004–1970
Farmstead Equipment
437–004–2000
Powered Saws
437–004–2100
Grinders
437–004–2220
General Requirements — Small Tools
437–004–2230
Guarding and Operation of Portable Powered Tools
437–004–2240
Power Lawnmowers
437–004–2260
Other Portable Tools and Equipment
437–004–2310
General Requirements
437–004–2350
Oxygen-Fuel Gas Welding and Cutting
437–004–2400
Arc Welding and Cutting
437–004–2810
General Requirements
437–004–2850
Temporary Lighting and Wiring
437–004–2860
Flexible Cable and Extension Cords
437–004–2870
Attachment Plugs and Receptacles
437–004–2880
Cord and Plug-Connected Equipment
437–004–2900
Grounding and Bonding
437–004–2950
Switches and Circuit Breakers
437–004–3000
Identification and Load Ratings
437–004–3050
Work Near Overhead Lines
437–004–3075
Agricultural Buildings with Special Hazards
437–004–3100
Excavation
437–004–3410
Agricultural, Commercial and Industrial Vehicles
437–004–3420
Working from Vehicles and Vehicle Loads
437–004–3430
Training for Agriculture Tractor Operators
437–004–3460
Industrial Vehicles
437–004–3480
Bridges, Roads and Ramps
437–004–3550
Servicing Multi Piece and Single Piece Rim Wheels
437–004–3600
Roll-Over Protective Structures (ROPS) for Tractors in Agriculture
437–004–3650
Roll-Over Protective Structures — Industrial Vehicles
437–004–3660
Vehicle-Mounted Elevating and Rotating Work Platforms
437–004–6000
Adoption by Reference of Federal Standard
437–004–6001
Expiration and Implementation Dates
437–004–6401
Effective dates for worker training programs in Oregon
437–004–6405
Restrictions Associated With Outdoor Production Pesticide Applications
437–004–6406
Pesticide Spray Drift and Innovative Methods
437–004–6501
Handler training programs in Oregon
437–004–6502
Oregon requirements for Worker Protection Standard trainers of handlers who qualify using train-the-trainer programs
437–004–6508
Respiratory Protection
437–004–6509
Emergency eye-washes and eye flushing supplies
437–004–9000
Oregon Rules for Air Contaminants
437–004–9010
Fumigated Areas.
437–004–9050
Asbestos
437–004–9090
13 Carcinogens
437–004–9600
Lead
437–004–9620
Cadmium
437–004–9626
Chromium (VI)
437–004–9640
Benzene
437–004–9650
Bloodborne Pathogens
437–004–9710
Acrylonitrile
437–004–9720
Thiram
437–004–9740
Ethylene Oxide
437–004–9760
Formaldehyde
437–004–9780
Methylendianiline
437–004–9800
Hazard Communication Standard for Agricultural Employers
437–004–9830
Retention of Department of Transportation (DOT) Markings, Placards and Labels
437–004–9850
Pipe Labelling
437–004–9860
Hazardous Chemicals in Laboratories
Last Updated

Jun. 8, 2021

Rule 437-004-9850’s source at or​.us