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Chemical Identifiers

The following identifiersNames, identification numbers, and other information used to identify a chemical.聽are shown on chemical datasheets, when available:

• NameName

  Name of the chemical record, shown at the top of the datasheet. Often, this is the name used in the Emergency Response Guidebook, EPA List of Lists, or the Table of Hazardous Materials聽from 49 CFRCode of Federal Regulations (www.govinfo.gov/app/collection/cfr/). 172.101.

• CAS NumberCAS Number

  Chemical Abstracts Service registry number. Unique identification number assigned to a chemical by the American Chemical Society. If there is an ALOHA icon after the CAS number, the chemical may be selectable in ALOHA.

• UN/NA NumberUN/NA Number

  The United Nations-North American number (also called UN number or DOTU.S. Department of Transportation (www.transportation.gov). number) is a 4-digit number identifying an individual chemical or a group of chemicals with similar characteristics. Required on shipping papers; often shown on placards. This numbering system was developed by the Department of Transportation, and then became the United Nations standard system for classifying hazardous materials.

• DOT Hazard LabelDOT Hazard Label

  DOTU.S. Department of Transportation (www.transportation.gov). hazard warning label for the chemical (such as flammableEasy to ignite and burns readily.聽liquid or corrosiveLiquid or solid that can destroy human skin or lung tissue or corrode metals.). This label must be displayed on shipped packages, railroad tank cars, and tank trucks聽according to specifications described in 49 CFRCode of Federal Regulations (www.govinfo.gov/app/collection/cfr/). 172. At the top of the datasheet, possible shipping placards for this chemical are shown based on the DOT Hazard Label field. For additional clarification on the shipping placards and labels, click on the UN/NA hyperlink on the chemical datasheet and review the Hazmat Table section of the UN/NA datasheet; you may also want to review the DOT Placards Guide.

• USCG CHRIS CodeUSCG CHRIS Code

  3-letter code used by the U.S. Coast Guard (USCG) to identify individual chemicals included in its CHRIS (Chemical Hazards Response Information System) manual.聽Clicking on the link brings up a PDF for the chemical from the CHRIS manual.

• NIOSH Pocket GuideNIOSH Pocket Guide

  External website link to a 聽page, which is a general reference guide for over 600 industrial chemicals with information on chemical and physical properties, health hazards, Levels of Concern (RELsRecommended Exposure Limits. A level of concern representing the adverse health effects of a hazardous substance on healthy adult workers. RELs are not available in CAMEO 365bet娱乐., PELsPermissible Exposure Limits. A level of concern representing the adverse health effects of a hazardous substance on healthy adult workers. PELs are not available in CAMEO 365bet娱乐., and IDLHImmediately Dangerous to Life and Health limits, levels of concern for adult workers; estimate of the highest concentration in air from which escape is possible without permanent injury (if their respirators fail). IDLHs are established by the National Institute for Occupational Safety and Health (www.cdc.gov/niosh).聽values), and respirator recommendations. Provided by National Institute for Occupational Safety and Health (NIOSH).

• International Chem Safety CardInternational Chem Safety Card

  External website link to an page. These cards have information about hazards and recommendations for transport, storage, disposal, and response for hazardous materials, including information on GHS labels and pictograms. Provided by the International Programme on Chemical Safety (IPCS) and the European Commission.

• NFPA 704NFPA 704

  Table that includes the diamond-shaped placard, individual NFPANational Fire Protection Association (www.nfpa.org), a private, non-profit organization that produces technical data related to fire protection and prevention, including the widely used NFPA diamond that contains codes representing chemical hazards. 704 values, and text descriptions indicating the level of the chemical's health, flammabilityA substance's tendency to ignite or take flame. Flammability is closely related to the volatility of a substance (and is not its relative ability to burn in the presence of oxygen with the evolution of heat)., and instability (reactivityThe tendency of a substance to undergo chemical change. The reactivity of most substances depends on the temperature and pressure of the surroundings, and on the chemicals with which it comes in contact. Under ordinary conditions, innately reactive substances are those that react rapidly with water, air, and other common components of the environment, as well as substances that self-react (decompose or polymerize).) hazards, along with special hazards such as water- and air-reactivity. See a guide to the NFPA diamond.

• General DescriptionGeneral Description

  Brief description of the chemical's general appearance, behavior, and hazardousness.

Here is an example of the Chemical Identifiers portion of the chlorine datasheet: