Safety Data Sheets

What is a Safety Data Sheet (SDS)?

An SDS (formerly MSDS) includes information such as:

  • Properties of each chemical.
  • Physical, health and environmental health hazards
  • Protective measures and safety precautions for handling, storing and transporting the chemical.

Products transported by ONEOK include: 

Identifying a Pipeline Leak

Use your sight, smell and hearing to help recognize a pipeline leak.  

Do you see . . .

  • Dead or discolored vegetation.
  • Pooling of liquids on the ground.
  • Bubbling in pools of water.
  • Sheen on the surface on water.
  • A white vapor cloud that resembles smoke.
  • Dirt blowing from a hole in the ground.
  • Fire coming out of or on top of the ground.
  • An area of frozen ground when ambient temperatures are warmer than freezing.
  • An unusual area of melted snow in winter.

Do you smell . . . 

  • An odor like petroleum liquids or gasoline.
  • An odor like rotten eggs or a burnt match.
  • A pungent odor.

In its purest state, natural gas is colorless and odorless. Natural gas supplied to a home or business may contain mercaptan, which has an odor similar to rotten eggs to assist in detecting a gas leak. Unprocessed natural gas also may have a petroleum-like odor.

Do you hear . . .

  • A hissing or whistling noise.
  • A loud roaring sound like a jet engine. 

Product Hazards

Product Leak Type Vapors Health Hazard Fire Hazard
Natural Gas Colorless, odorless, tasteless gas;
Lighter than air
Extremely high concentration may cause irritation or asphyxiation Extremely flammable
Natural Gas Liquid (NGL) Gas Heavier than air Dangerous if inhaled Extremely flammable
Nitrogen Inert gas Lighter than air Dangerous if inhaled Non-flammable but can displace oxygen
Gasoline and Diesel Liquid Heavier than air Irritating to eyes and skin; vapors at high concentrations may affect central nervous system Extremely flammable

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