Reference Guide to GHS Container Labels

Transcription

1 Reference Guide to GHS Container Labels PO Box The Occupational Safety and Health Administration (OSHA) has adopted the Globally Harmonized System (GHS) for classification and labeling of hazardous chemicals. The GHS chemical container label is designed to ensure that workers understand the specific hazards related to the chemicals used or handled and the specific protective measures required to avoid adverse effects. By June 1 st, 2015, every hazardous chemical in a laboratory must be labeled with a GHS-compliant label. Thus, laboratories will need to replace obsolete labels affixed to their existing chemical containers with a GHS-compliant label. This reference guide will help you understand how to create a GHS-compliant hazardous chemical label. All of the required information to create a GHS chemical label may be found on the product s GHS Safety Data Sheet (SDS). A Material Safety Data Sheet (MSDS) may not contain all of the required information for a GHS label, as the new SDSs contain additional information. If all you have is an MSDS, contact the manufacturer or RLSS to retrieve any missing information. If you create novel chemicals in your laboratory, you are required to complete a GHS-compliant container label for each novel chemical. Contact RLSS for more information on how to fulfill these requirements. While the label components detailed in this guide are required for all containers of hazardous chemicals, additional supplementary information may be provided by the manufacturer or supplier on the label. There is no set format for a GHS-compliant label, as long as all required components are present and the label is printed in color. Labels must be large enough for the writing to be legible. This guide uses the RLSS-recommended format for GHS-compliant labels. This guide explains the required aspects of a GHS chemical container label and provides examples of GHS-compliant labels for Methanol (CAS # ) and a Phenol, Chloroform & 3-methylbutan-1-ol mixture (CAS # , , ) from Sigma Aldrich. There are six required sections of a GHS-compliant chemical container label:

2 PO Box Product identifier(s) The product identifier is most commonly the common product name of the chemical, and must match the product identifier on the SDS. The product identifier for Methanol is Methanol. The GHS-compliant label for mixtures must include all components of the mixture with their relative percentages. The product identifier for the Phenol, Chloroform & 3-methylbutan-1-ol mixture is Phenol (50%), Chloroform (49%) & 3-methylbutan-1-ol (1%). The product identifiers are highlighted in the examples below by the green box.

3 2. GHS Pictogram(s) A GHS hazard pictogram consists of a black and white symbol with a red diamond surrounding it. The hazard pictograms applicable to your chemical must be printed on the label in color. These pictograms are meant to warn hazardous chemical users about the potential hazards of the chemical. The nine GHS pictograms seen below and the hazard class (es) (e.g. Explosive, Corrosive) they refer to may be included on the chemical label depending on information provided in the SDS. GHS Pictograms PO Box Explosive Water-Reactive Peroxide-Forming GHS Hazard Classes Flammable Oxidizing Combustible Pyrophoric GHS Pictograms Compressed Gas Cryogenic Liquid Corrosive Fatal or toxic if swallowed Fatal or toxic in contact with skin Fatal or toxic if inhaled GHS Hazard Classes Harmful Irritant Sensitizer May cause asthma or allergies Mutagen Carcinogen Reproductive Toxin Target-Organ Toxin For mixtures of hazardous chemicals that are not assessed by the manufacturer as a whole, the individual hazards and pictograms will be included on the GHS label for all of the components. If two chemicals in a mixture require different GHS pictograms in the same hazard class, the more severe of the two are used in the mixture s label, and the less severe is omitted. For example, Category 1, 2, and 3 in the Acute Toxicity GHS hazard class requires the skull and crossbones pictogram while Category 4 in the same GHS hazard class requires the exclamation mark pictogram. Therefore, if a mixture of hazardous chemicals includes a chemical that is fatal

4 if inhaled (Category 1, 2 and 3) and a chemical that is harmful if swallowed (Category 4), only the skull and crossbones pictogram must be appear on the label. More information on this hierarchy can be found in the Reference Guide to GHS Hierarchy which can be found on the RLSS website. PO Box Based on its SDS, a container of Methanol must have the GHS pictograms for Flammable, Fatal or Toxic if swallowed, in contact with skin or if inhaled, and Target-Organ Toxin printed on its label. Based on their SDSs, the Phenol, Chloroform & 3-methylbutan-1-ol mixture must have the GHS pictograms for Fatal or Toxic if swallowed, in contact with skin or if inhaled, Target-Organ Toxin, and Corrosive printed on its label. These pictograms are highlighted in the examples below by the green box.

5 PO Box Signal words A signal word is used to indicate the severity of the hazards presented by the chemical (i.e. Danger, Warning ). Danger indicates a more consequential hazard than Warning. The signal word for each hazardous chemical can be found on the SDS and must be placed on the label. Labels for mixtures of hazardous chemicals must include the more severe signal word (e.g. if a one chemical requires Danger and another requires Warning, Danger is used as the signal word for the mixture). Based on relevant SDSs, both the container labels for Methanol and the Phenol, Chloroform & 3-methylbutan-1-ol mixture must use Danger for the signal word, as highlighted below by the green box.

6 PO Box Hazard statements A hazard statement is a standardized GHS phrase assigned to chemicals that describes the nature and degree of the hazard(s) associated with that chemical. Every applicable hazard statement from the SDS must be included on the container label. A full list of GHS hazard statements can be found on OSHA s website. Like the hazard pictograms, individual hazard statements for each hazardous chemical within a mixture will have to be combined and reported on the mixture s label if the mixture has not already been assessed by the manufacturer. If two chemicals in a mixture require different hazard statements in the same GHS hazard class, the more severe of the two is used in the mixture s label. For example, if the hazard statement Causes skin irritation is required for one chemical in the mixture and Causes severe skin burns and eye damage is required for another, only Causes severe skin burns and eye damage needs to be displayed on the label. The required hazard statements for each example label are explained below and highlighted by the green box. Methanol s GHS hazard statements: Highly flammable liquid and vapor. Toxic if swallowed, in contact with skin or if inhaled. Causes damage to organs. The Phenol, Chloroform & 3-methylbutan-1-ol mixture must include all hazard statements for each chemical. The mixture s GHS hazard statements are: Combustible liquid Harmful if swallowed or in contact with skin Causes severe skin burns and eye damage. Fatal if inhaled.

7 Suspected of causing genetic defects. Suspected of causing cancer. May cause damage to organs. May cause damage to organs through prolonged or repeated exposure. PO Box Harmful to aquatic life. 5. Precautionary statements A precautionary statement is a standardized GHS phrase that describes the required protective measures that must be taken to prevent exposure or minimize adverse effects from exposure to the hazardous chemical. Precautionary statements are directly related to the hazard statements assigned to a chemical class (e.g. a hazardous

8 chemical that includes Fatal if inhaled as a hazard statement will have Do not breathe dust/fume/gas/mist/vapors/spray as a precautionary statement). Every precautionary statement listed on the hazardous chemical s SDS must be included on its container/sample label. A full list of GHS precautionary statements can be found on OSHA s website. The required precautionary statements for each example label are explained below and highlighted by the green box. Methanol s GHS precautionary statements are: Keep away from heat/sparks/open flames/hot surfaces. No smoking. Do not breathe dust/fume/gas/mist/vapors/spray. Wear protective gloves/protective clothing. IF SWALLOWED: Immediately call a POISON CENTER or doctor/ physician. IF exposed: Call a POISON CENTER or doctor/ physician. The Phenol, Chloroform & 3-methylbutan-1-ol mixture must include all precautionary statements for each chemical. The mixture s GHS precautionary statements are: Do not breathe dust/fume/gas/mist/vapors/spray. Wear protective gloves/protective clothing/eye protection/face protection. Wear respiratory protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a POISON CENTER or doctor/ physician. PO Box

9 PO Box Supplier identification The supplier identification must include the name, address and telephone number of the manufacturer or supplier of the hazardous chemical. If you are creating a GHS-compliant label for a novel chemical, your supplier identification section should include: the Approval Holder s name (usually the Principal Investigator), address for the Approval Holder (for Approval Holders on UA property, the Building Name and Room Number followed by University of Arizona, Tucson, AZ will suffice, for Approval Holders on leased (Non-UA) property, the street address must be used), and the Approval Holder s phone number. The supplier of Methanol and the Phenol, Chloroform & 3-methylbutan-1-ol mixture is Sigma-Aldrich, and its supplier information includes the address and telephone number for the company, which is highlighted by the green box in the examples below. If you were creating a mixture of chemicals in your laboratory, the supplier identification would include laboratory-specific information as explained above.

10 PO Box Many companies provide label makers that comply with the GHS, as well as premade pictograms that can be affixed onto containers. Some companies also provide appropriately labeled secondary containers, such as squirt bottles for ethanol and acetone. Additionally, many companies have started to produce fillable GHS label templates, or premade GHS-compliant labels at no cost (e.g. SmartSign). For more information on commonly purchased items, such as pre-labeled squirt bottles, see the Common Purchase List provided on the RLSS website. For more information on container labels, contact RLSS at (520) or