MSDS

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MSDS

• Material Safety Data Sheets

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What is a Material Safety Data Sheet?

• A Material Safety Data Sheet (MSDS) is the
  official documentation of the properties of a
  given substance.
• It provides workers, consumers, and safety
  personnel with thorough information on
  potentially hazardous, chemicals, or components
  in a particular substance or product.
• It includes information about physical
  properties, storage, handling, and disposal.

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OSHA Requirements for MSDS

• MSDS are required at any place of employment
  where work with hazardous materials takes place.
• It is not only for hazardous materials, but any
  material which poses a hazard.
• MSDS documents can be in the form of a hardcopy,
  located on a computer, fax, etc. as long as they
  are in one place and can be easily accessible at
  the job site.

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A MSDS informs you of the following

• The materials chemical makeup.
• The material physical properties or fast acting
  health effects that make it dangerous to handle.
• The level of protective gear you need to work
  safely with the material.

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It also informs you of

• First aid treatment to be provided when someone
  is exposed to the material.
• The preplanning needed for safely handling
  spills, fires, and day-to-day operations.
• How to respond to accidents.

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What information is located on a MSDS?There are
9 categories that must be present on a MSDS they
include the following

• Chemical identity.
• Health Hazard Data.
• Manufacturers information.
• Precautions for safe handling and use.

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The nine categories continued

• Hazardous ingredients.
• Exposure controls/personal protection.
• Physical and chemical properties.
• Fire and explosion hazard data.

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The following slide is an actual MSDS for
Tungsten Welding Electrodes.
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Common symbols for hazardous material The
National Fire Protection Agency (NFPA) Diamond

• The NFPA Diamond is designed to give general
  hazard information for chemicals.

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The Colors and Number

• 0 Insignificant
• 1 Slight
• 2 Moderate
• 3 Serious
• 4 Severe

• Red Fire Hazard
• Blue Heath Hazard
• Yellow Reactivity Hazard
• White Special Hazard

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Health Hazard

• 0 For materials that pose no health hazard
  (aggregates).
• 1 For materials that can cause significant
  irritation.
• 2 For materials that can cause temporary
  incapacitation or residual injury.
• 3 For materials (hydrofluoric acid, cement, lime)
  that could cause serious or permanent injury.
• 4 For materials (phosgene and methyl mercury)
  that can be lethal.

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Flammability

• 0 For materials that will not burn.
• 1 For materials that must be preheated to ignite
  (asphalt).
• 2 For materials that must be moderately heated or
  have a high ambient temperature before ignition
  can occur (crude oil).
• 3 For materials (liquids or solids) that can be
  ignited under almost all ambient temperature
  conditions (kerosene).
• 4 For materials which will rapidly or completely
  vaporize at atmospheric pressure and normal
  ambient temperature, or which are readily
  dispersed in air and which will burn readily.

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Reactivity Stability

• 0 Normally stable, even under fire exposure
  conditions, and not reactive with water.
• 1 Normally stable, but can become unstable at
  elevated temperatures and pressures or which may
  react vigorously with water. May change or
  decompose with exposure to air, light or moisture
  (lime, cement).
• 2 Readily undergoes violent chemical changes at
  elevated temperature and pressure. May react
  violently with water or may form a potentially
  explosive mixture with water.
• 3 Capable of detonation or explosive reaction but
  requires a strong initiating source or reacts
  explosively with water (ammonium nitrate).
• 4 Readily capable of detonation or of explosive
  decomposition at normal temperature and pressure,
  shock sensitive, explosive in water (nitro).

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Special

• W reacts violently or in a dangerous manner with
  water.
• D requires special disposal.
• COR acid, alkali or other materials that will
  cause severe damage to living tissue.
• OX yields oxygen to support combustion.
• Possess radioactive hazards.

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Actual Photos of NFPA Diamond
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