CHAPTER 6: HAZARD COMMUNICATION

Similar documents
Concordia College Moorhead, Minn.

Hazard Communication Program. San José State University

S A F E T Y D A T A S H E E T

NPGA White Paper. OSHA Hazard Communication Standard

05/21/2015 EN (English US) 1/5

04/20/2015 EN (English US) 1/5

SECTION I: PRODUCT IDENTIFICATION (770) SECTION II - HAZARD IDENTIFICATION SECTION III - HAZARDOUS INGREDIENTS/IDENTITY INFORMATION

MATERIAL SAFETY DATA SHEET

B&B Gas Well Services, LLC HEALTH, SAFETY AND ENVRONMENTAL MANUAL HAZARD COMMUNICATION PROGRAM

: Dust Mop H2O. SECTION 1: Identification. SECTION 2: Hazard(s) identification. SECTION 3: Composition/Information on ingredients

Title: Hazard Communication Right to Know Program Effective Date: 5/88 Revision: 12/14 Number of Pages: 7

MATERIAL SAFETY DATA SHEET

3141 Clifty Drive Madison, IN 47250

3141 Clifty Drive Madison, IN 47250

S A F E T Y D A T A S H E E T

SECTION 1: PRODUCT AND COMPANY IDENTIFICATION CITRIC ACID. 24-Hour Service Weekdays PREPARED DATE: PREPARED BY: Benjamin Terpening

1. Product And Company Identification

FIRST AID - SKIN CONTACT: IF ON SKIN: Gently wash with plenty of Soap and Water. If skin irritation occurs: Get medical advice/ attention.

S A F E T Y D A T A S H E E T Clifty Drive Madison, IN WARNING SECTION 1: PRODUCT AND COMPANY IDENTIFICATION CITRIC ACID

: Sarapin 50 ml multi-dose vial

Date Printed: 1/5/2016 Product: B Surface Preparation or Protection. (703) (Collect calls are accepted)

TITRATION SOLUTION NO. 34

1. IDENTIFICATION OF THE SUBSTANCE OR PREPARATION AND OF THE COMPANY. Concrete Stain Away. Date: September 1, 2015

12/14/2017 EN (English US) 1/5

Madison Chemical Co., Inc.

SILICONES UNLIMITED, INC. MATERIAL SAFETY DATA SHEET

Tara Materials, Inc. Safety Data Sheet. Recommended use of the chemical and restrictions on use: Medium for signs, banners, and artist applications.

SAFETY DATA SHEET Confirms to OSHA Hazard Communication Standard (CFR ) HazCom 2012

Occupational Safety Next Review Date: 12/30/18. Scope: University Wide Original Creation Date: 1998

Issue Date 01-Sept-2016 Revision Date: 10-Oct-2017 Version 1 1. IDENTIFICATION 2. HAZARDS IDENTIFICATION. Physical State Liquid

UNDERSTANDING & INTERPRETING MATERIAL SAFETY DATA SHEETS. Introduction to Understanding MSDS's

04/21/2015 EN (English US) 1/5

Hazard Communication Plan (HCP) 29 CFR

1.2. Relevant identified uses of the substance or mixture and uses advised against (INT)

Version 3.0 Print Date 07/08/2012 REVISION DATE: 07/07/2012 SECTION 1 - PRODUCT IDENTIFICATION / PREPARATION INFORMATION

Use only for the purpose on the product label.

Safety Data Sheet. 503 Main Street Belle Chasse, LA 70037

Hazard Communication Standard Safety Data Sheet Nature's Way Sweeping Compound, Red Oil-based

Safety Data Sheet. SECTION 1: Identification. SECTION 2: Hazard identification

: CHEMTREC (in US); CHEMTREC (International and Maritime)

Total Systems Technology Inc. Address 65 Terence Drive, Pittsburgh, PA Phone Number Emergency Phone Number

Madison Chemical Co., Inc.

24 Hour Emergency CHEMTREC

Drain Opener Safety Data Sheet

MATERIAL SAFETY DATA SHEET

Revision Date: March 5, 2014 Page 1 of 6 SECTION 1: IDENTIFICATION SECTION 2: HAZARDS IDENTIFICATION

Madison Chemical Co., Inc.

Total Systems Technology Inc. Address 65 Terence Drive, Pittsburgh, PA Phone Number Emergency Phone Number

SECTION 1: IDENTIFICATION OF THE SUBSTANCE/MIXTURE AND OF THE COMPANY

: CLEANCORE AQUEOUS OZONE SOLUTION

MATERIAL SAFETY DATA SHEETS /E-3

MATERIAL SAFETY DATA SHEET Date Revised: 7/18/2013 Page: 1 Mold Release MSDS Number: SECTION 1. CHEMICAL PRODUCT AND COMPANY IDENTIFICATION

19Feb2016 EN (English US) 1/5

2.1. Hazard classification This product is exempt from hazard classification according to OSHA Hazard Communication Standard, 29 CFR

MATERIAL SAFETY DATA SHEET

CHEMICAL PRODUCT AND COMPANY IDENTIFICATION

1.2. Relevant identified uses of the substance or mixture and uses advised against (INT)

WEBINARS. Hazard Communication

Escondido Union High School District. Hazard Communication Plan

14 FORTUNE DRIVE PRODUCT NAME: EPO-TEK H20E, Part A BILLERICA, MA 01821

1. IDENTIFICATION INFOTRAC (North America) 2. HAZARDS IDENTIFICATION. Physical State Liquid

Total Systems Technology Inc. Address 65 Terence Drive, Pittsburgh, PA Phone Number Emergency Phone Number

Material Safety Data Sheet

MATERIAL SAFETY DATA SHEET Product Name: Gas Mixture (CARBON MONOXIDE IN AIR) DOT ID No:

3-Mix-Processed Glass Abrasive SAFETY DATA SHEET

Safety Data Sheet. SECTION 1: Identification. SECTION 2: Hazard identification

Date Printed: 2/17/2019 Product: M UPHOLSTERY/FABRIC CLEANER. Surface Preparation or Protection

Issue Date: 16-Feb-2012 Revision Date: 24-Feb-2015 Version 2 1. IDENTIFICATION. United 894 ZYME-OUT. For industrial and institutional use only.

SECTION 1: PRODUCT AND COMPANY IDENTIFICATION EASY FOAM Foaming Car Wash PRODUCT # FOR INDUSTRIAL USE ONLY KEEP OUT OF THE REACH OF CHILDREN

1. Product And Company Identification

Safety Data Sheet. SECTION 1: Identification. SECTION 2: Hazard identification

Safety Data Sheet. SECTION 1: Identification. SECTION 2: Hazard identification

SAFETY DATA SHEET 1. PRODUCT AND COMPANY INFORMATION

: Red Caries Indicator

SDS SAFETY DATA SHEET

Issue Date: 01-Jun-2010 Revision Date: 10-Sep-2015 Version 1 1. IDENTIFICATION MSH-32, MSH-1, MSH HAZARDS IDENTIFICATION

IDQ Operating, Inc. 44 Old Ridgebury Road Suite 300 Danbury, CT Tel Product And Company Identification

(CAS No) Skin Irrit. 2, H315 Eye Irrit. 2A, H319 Muta. 2, H341 STOT SE 3, H335 Full text of H-phrases: see section 16

Safety Data Sheet. SECTION 1: Identification. SECTION 2: Hazard identification

Total Systems Technology Inc. Address 65 Terence Drive, Pittsburgh, PA Phone Number Emergency Phone Number

KRC-7 CLEAN Safety Data Sheet

MATERIAL SAFETY DATA SHEET

SECTION 1: Identification of the substance/mixture. SECTION 2: Hazards identification. Product identifier

SAFETY DATA SHEET PRODUCT NAME Sulfur hexafluoride 1.2 RELEVANT IDENTIFIED USES OF THE SUBSTANCE OR MIXTURE AND USES ADVISED AGAINST :

S A F E T Y D A T A S H E E T Clifty Drive Madison, IN WARNING

IOSSO SEAM SEALER SAFETY DATA SHEET

SECTION 2: HAZARDS IDENTIFICATION Classification of the Substance or Mixture GHS-US/CA Classification

: Imported (China) Resin Bonded Grinding and Cutting Wheels - Aluminum Oxide

Version /28/2006

Madison Chemical Co., Inc.

SAFETY DATA SHEET. Chemical Name CAS No. Wt.% Paper Tape Not available Not available

SAFETY DATA SHEET PINK LOTION SOAP (OPAQUE)

Revision Date: March 12, 2014 Page 1 of 5 SECTION 1: IDENTIFICATION SECTION 2: HAZARDS IDENTIFICATION

Safety Data Sheet Fresh Scent Dish Detergent. Fresh Scent Dish Detergent Hand Dishwash Detergent Multiple 5/6/2015 5/7/2015 Industrial Use Only

Safety Data Sheet. AB Page 1 of 6 January 01, Relevant routes of exposure: Eye contact, skin contact, inhalation, ingestion

SECTION 7 HAZARD COMMUNICATION PROGRAM

Safety Data Sheet according to Federal Register / Vol. 77, No. 58 / Monday, March 26, 2012 / Rules and Regulations Date of issue: 05/07/2015

Safety Data Sheet. SECTION 1: Identification. SECTION 2: Hazard identification

Not a dangerous substance or mixture according to the Globally Harmonized System (GHS).

Lo-Foam Steam Extractor Carpet Cleaner Safety Data Sheet

Transcription:

CHAPTER 6: HAZARD COMMUNICATION

TITLE AND PURPOSE This document details J.T. Thorpe & Son s program for HAZARD COMMUNICATION AND CONTROL. Its purpose is to set forth guidelines and procedures for the proper handling, storage, and disposal of hazardous substances, in order to ensure a healthful and safe environment for all persons engaged in activities at the company's facility. Upon request, this document shall be made available to employees, their designated representative, and authorized state, or federal safety officials. This document is the written Hazard Communication Program required by OSHA. OBJECTIVES/LEGAL REFERENCES It is the intent of this document to reflect and incorporate the legal requirements of CAL OSHA Section 5194, AB2185, AB2187, and AB3377; Federal Hazard Communication Standard, CFR1910.1200; and SARA Title 111, Emergency Planning and Community Right to Know Act of 1986, as they apply to Hazard Communication Standards. SITE COORDINATOR The Safety Manager will be the site coordinator for the Hazard Communication Program. The Safety Manager is responsible for coordinating and managing the company Hazard Communication Program. As appropriate, the Safety Manager may designate key personnel to assist with the Hazard Communication Program. It is the responsibility of the Safety Manager to ensure that storage, handling, and disposal of hazardous substances takes place in accordance with the guidelines and procedures set forth in this document. HAZARD DETERMINATION AND DISCLOSURE JTT will inform employees of the hazards of non-routine tasks through written Pre-job Hazard Analyses (JSAs) as well as through each client s site specific safety programs. Hazardous substances are those chemicals that are designated as hazardous by one of the following: the manufacturer; the Safety Data Sheets; or the "Directors List" of hazardous chemicals, or any similar government list. Manufacturers and suppliers are required to provide their customers with health and safety information on hazardous substances purchased. This is done through the use of Safety Data Sheets (SDS), which must be provided to the purchaser prior to, or at the time of, shipment. J. T. Thorpe & Son is mandated by law to maintain copies of the required SDS for each hazardous substance in the work place, and to ensure that these are readily accessible to employees when in their work area(s). An ongoing inventory shall be taken and a complete and current list, including quantity, of all hazardous substances shall be compiled for each area where such substances are stored, handled, or utilized. The inventory shall be reported to the Safety Manager's office monthly. The Truck Driver s Report and Materials List serves as the on-site list of hazardous chemicals that is required by the Standard. Safety Data Sheets (SDS s) shall be requested from manufacturers and suppliers, and all purchases of any item containing a "Hazardous Substance" must include the SDS with the delivery. Old SDSs will be replaced with new SDSs when they are received. Before they are purchased, JTT Project Managers should review the SDSs of new products to determine the presence of carcinogenic or other extremely hazardous chemicals. Any hazardous substance received without the Safety Data Sheets (SDS) will not be utilized until an SDS is available faxed copies or SDS s downloaded from the web are acceptable. If the vendor has not provided the SDS within 25 working days of the request, the local office of CAL/OSHA shall be notified for assistance as specified in the Law. Only "designated" employees shall have the authority to make purchases involving "hazardous materials." All "designated" company employees who purchase materials shall ensure that vendors and suppliers are notified of the SDS requirement. Open purchase orders shall not include hazardous substances, which by law must be accompanied by a SDS. 178

All purchases shall be made from the list of "Approved" vendors only (See Appendix "B"). Any exception from this practice must be approved by the Safety Manager. The Safety Manager ensures that Safety Data Sheets and hazardous substance lists are developed, maintained (i.e., status kept current), and posted or filed in the work place for employee use. The Safety Manager relies upon the manufacturer's determination of hazardous material based on the published Safety Data Sheets (SDS) and designated government lists of hazardous substances. LABELS AND OTHER FORMS OF WARNING Each product containing hazardous substances must be properly labeled, tagged, or clearly marked with: (1) the identity of hazardous substance(s) within; (2) appropriate hazard warnings; and (3) manufacturer's name. Labels on product packaging will be audited to ensure that they are legible, in English, and prominently displayed on the container, or readily available in the work area throughout each work shift. Existing labels on incoming containers shall not be removed or defaced unless the container is immediately marked with the information required above. If existing labels on containers received from suppliers already convey the required information, new labels need not be affixed. Hazardous chemicals transferred to containers intended only for immediate use (i.e., chemicals under the control of the employee making the transfer, and used within the work shift during which it is transferred), need not be labeled, providing that such containers, upon completion of transfer and use, are emptied and devoid of any hazardous residue. Large containers or other stationary process containers may be labeled with signs or other appropriate written information, as long as the container to which the information applies is identified. Substances that do not have the proper label and/or cannot be identified shall not be used, handled, or stored. In such cases, the Safety Manager must be notified immediately. The material must then be identified and properly labeled or removed from the site under the direction of the Safety Manager's office. JTT will use all hazard warnings such as words, pictures, symbols or combinations thereof that are provided by the product manufacturer and will follow all site specific programs as required by each client. EMPLOYEE INFORMATION AND TRAINING For JTT PSM customers, only English-speaking workers who also can read English will be allowed to work at the sites, and the training will only be in English. For sites other than PSM operations, interpreters will be provided during training for all non-english speaking workers. At each department or area where hazardous substances are used or stored, employees shall be provided with information and training on the following: a. How to handle hazardous materials safely and use personal protective equipment. b. Where to find and how to use Safety Data Sheets (SDS s) and the hazardous substances labeling system. c. Potential physical and health hazards associated with the use of hazardous substances or mixtures. d. Methods and observations used to detect the presence or release of hazardous substances in the work place. e. First aid and emergency procedures in the case of spills or accidental overexposure. f. General safety precautions necessary to prevent or minimize exposure to hazardous substances. g. All company employees shall be informed whenever any temporary activity involving the use of hazardous materials will take place. In such cases, employees shall be informed of the nature of the activity and advised of any necessary precautions or potential hazards. h. Employees shall be advised of the location and availability of the company's written Hazard Communication and Control program. i. Employees shall be advised of the following: 179

OUTSIDE CONTRACTORS 1. The right of the employee and/or the employee's physician to receive information regarding hazardous substances to which the employee may be exposed. 2. That the employee is protected against any form of discrimination due to the employee's exercise of the rights afforded in the provisions of the Hazardous Substances Information and Training Act. Whenever outside contractors, vendors, suppliers, or emergency responders enter or work where hazardous substances are stored or utilized, the Safety Manager or supervisor shall inform them that that and their employees may encounter hazardous substances while performing their work, and provide visitors with access to Safety Data Sheets (SDS s) and suggested appropriate protective measures. Further, a site map shall be prepared to identify the location of areas where hazardous materials are stored or in use. The site map shall be made available to emergency responders and be provided upon request, or at the site coordinator's discretion, to employees of outside contractors, vendors, or suppliers. Whenever it becomes necessary for an employee to perform an unfamiliar, non-routine task involving exposure to or utilization of a hazardous substance, the employee's supervisor shall ensure that the employee receives appropriate safety and hazard awareness training prior to working. STORAGE OF HAZARDOUS SUBSTANCES To the maximum extent possible, all poisons, acids, and flammable chemicals shall be stored separately from all other substances, preferably in designated storage areas or cabinets approved for the type of exposure anticipated. The Safety Manager shall schedule periodic inspections to ensure that all hazardous substances within the company are appropriately labeled and stored. As a general rule, minimize the use of chemicals and substances that are particularly vulnerable to incompatibility and possible adverse reaction or accident due to improper storage. To the maximum extent possible, store chemicals and substances into separate, organic and inorganic groupings, and then further sort them into compatible families. HAZARDOUS WASTES DISPOSAL PROCEDURES AND REGULATIONS Federal, state, and local environmental regulations require strict control of the handling, storage, and disposal of all materials identified as being hazardous or toxic to human health or the environment. Once such materials have been used within the operations, specific restrictions and procedures apply to their disposal. The Safety Manager's office maintains a monthly inventory based on information gathered during his survey and reporting by the department. Accordingly, the following procedures shall be carried out for all departments generating hazardous waste: 1. No hazardous waste may be dumped in drains, sewers, dumpsters, or onto the ground. The only exception is small quantities of some chemicals that may be disposed of by drain or dumpster in accordance with local Sanitation District rules or OSHA guidelines or the Safety Data Sheets (SDS). 2. The Safety Manager's office shall be the contact point for all information regarding storage and disposal of hazardous materials. It will arrange for periodic removal of hazardous waste (a minimum of quarterly, or as required by law) by a licensed hazardous waste hauler as needed. 3. Prior to removal, waste oils, sludge, and solvents must be stored in Department of Transportation (DOT)-approved storage drums, labeled, with lids. Labels must clearly identify the material being stored for removal and the date it was placed in the drum. The average monthly quantity of each waste and waste category shall be maintained and reported to the Safety Manager. 4. Hazardous wastes designated for disposal or treatment must be removed by a licensed hazardous waste hauler. Arrangements for any hazardous materials disposal MUST be made through the Safety Manager's office. For removal, send an inventory sheet to the Safety Manager's office with name, quantity, and location of hazardous 180

materials. The hauler will have its identification and record checked before it can perform waste removal for the company, 5. When disposing hazardous waste from a given site, the hauler must prepare a manifest list. Each list must identify the name and amount of each material for disposal. A copy of the Environmental Protection Agency (EPA) manifest list and any related documents MUST be forwarded to the Safety Manager's office as soon as they are completed. The original will be kept on file. After the waste has been deposited at an approved dump site, another copy of the manifest will be returned to the Safety Manager's office to document proper disposal and site location. 6. The Safety Manager shall be responsible for keeping an ongoing Hazardous Waste Disposal Manifest File, with copies of all information for the master file. As provided by law, the site Disposal Manifest File is subject to regular inspection by the local Health Department. Appropriate fines may be levied for non-compliance. COMMUNICATING THE HAZARDS OF NON-ROUTINE TASKS The site coordinator will be responsible for communicating the hazards of non-routine tasks to employees through a site specific safety plan, work order, or the pre-job safety analysis for the day. 181

DISCLOSURE PROCEDURE FOR EMERGENCY AND EMERGENCY RESPONDERS RESPONSE PLAN FOR HAZARDOUS SPILLS 1. Compulsory Federal Law (SARA Title 111) provides that counties adopt ordinances mandating that businesses or persons using, handling, or storing hazardous materials provide information regarding the location, type, and associated health risks to emergency responders such as the fire department and paramedics. 2. To comply with SARA Title III, the company will provide the designated area agencies with the Hazardous Chemical Inventories and Emergency Response Plans. Currently, the law only applies to businesses or persons using, storing, or handling hazardous materials where there is an estimated total yearly use in excess of 55 gallons of liquids, 500 pounds of solids, or 200 cubic feet of gaseous substances. Once the company handles this amount of product, determining how much waste is being generated becomes necessary. If waste must be recycled or disposed of waste through a licensed waste hauler, recycler, etc., then the company must become licensed as a generator of hazardous wastes. Each department shall maintain an inventory of all hazardous chemicals, the quantities, and the Safety Data Sheets. The updated inventories shall be sent to the Safety Manager's office on a monthly basis. The Safety Manager's office shall assist in coordinating the program. IMPORTANT REFERENCE INFORMATION SAFETY DATA SHEETS Valuable information for the safe use, handling and disposal of chemical materials on the Site may be obtained from the manufacturer or supplier in the form of a Material Safety Data Sheet (SDS). Each SDS describes the physical and chemical properties of the chemical, material or substance. It also provides information for first aid treatment and special personal protection, cleanup procedures, and precautions for storing and handling. The Safety Data Sheets is designed to inform the user of the properties of the material, and to suggest proper controls for protecting employees, property, and the environment against injury or damage. The data sheet also helps the user set up and maintain appropriate controls so that he can avoid preventable accidents. Below is an outline of the contents of a Safety Data Sheets. SECTION I - MANUFACTURING IDENTIFICATION Material and trade names, chemical family, and other designations. Name, address and telephone number of the manufacturer. In particular, emergency telephone number; this information should be readily available. The date the SDS was prepared important for referencing to most recent SDS and thus, most accurate information (new information become available with time and product formulas change). SECTION II - HAZARDOUS INGREDIENTS Hazardous ingredients Their percent (%) concentrations in the material, and their toxicity. 182

Also, hazardous mixtures of other substances. SECTION III - PHYSICAL DATA Properties such as boiling point, vapor pressure, and density, solubility in water, evaporation rate, percent volatility, and characteristic appearance and odor. SECTION IV - FIRE AND EXPLOSION HAZARD INFORMATION Properties such as flash point (method of ignition), auto ignition temperature, and lower and upper limits in the air. This information is very important for materials used near sources of ignition or within poorly ventilated spaces. Also, means of extinguishments and special procedures for fire fighting. SECTION V - HEALTH HAZARD DATA Threshold limit value (TLV), effects of overexposure, and first aid treatment for eye or skin contact and inhalation. This information offers a guideline for monitoring exposure during use or handling. SECTION VI - REACTIVITY DATA Stability of the material and related conditions to avoid. Other materials that are incompatible. Hazardous decomposition products and hazardous polymerization with related conditions to avoid. This information outlines conditions of use and storage under which the material will remain stable, as well as likely conditions that could cause a dangerous chemical reaction. SECTION VII - SPILL OR LEAK PROCEDURES Recommended action for safe clean-ups and for final disposition without posing a hazard to people, property, or the environment. SECTION VIII - SPECIAL PROTECTION INFORMATION Suggestions covering the need for ventilation, respiratory protection, eye protection, gloves, and other protective equipment during exposure to the material. SECTION IX - SPECIAL PRECAUTIONS Information on safe storage and handling to avoid hazardous reactions Department of Transportation classification. GLOSSARY OF SAFETY DATA SHEET TERMS Information sheets, such as Safety Data Sheets (SDS s) for hazardous or toxic substances, contain words that may be unfamiliar. The following explanation of terms will help you to understand the SDS. ACGIH: 183

Abbreviation for the American Conference of Governmental Industrial Hygienists, a private organization of occupational safety and health professionals. The ACGIH recommends occupational exposure limits for numerous toxic substances that are called Threshold Limit Values (TLVs ), which are updated and revised as more information becomes available. CARCINOGENIC: Capable of causing cancer. CEILING LIMIT: The maximum amount of a toxic substance allowed in workroom air at any time during the day. COMBUSTIBLE: Able to catch fire and burn. CONCENTRATION: The amount of one substance in another substance. DECOMPOSITION: Breakdown of a chemical. DENSITY: How much space a given weight of substance takes up. Gold is a very dense substance because a small piece is very heavy. Styrofoam is not very dense because it takes up a lot of space but weighs very little. The density of a substance is usually compared to water, which has been given a density value of 1. Substances more dense than water (which sink in water) have a density greater than 1; substances that float on water have a density of less than 1. DERMAL: By or through the skin. EXPLOSIVE LIMITS: The amount of vapor in air that is sufficient to form explosive mixtures. Explosive limits are expressed as LOWER EXPLOSIVE LIMITS and UPPER EXPLOSIVE LIMITS. These give the range of vapor concentrations that will explode if heated. Explosive limits are expressed as a percentage of vapor in the air. FLAMMABLE: Catches on fire easily and burns rapidly. FLAMMABLE LIMITS: See EXPLOSIVE LIMITS FLASH POINT: The lowest temperature at which the vapor of a substance will catch on fire, and then go out, if heat is applied. Provides an indication of how flammable a substance is. Not to be confused with IGNITION TEMPERATURE. HEALTH HAZARD: Anything that can have a harmful effect on health under the conditions in which it is used or produced. There can be both ACUTE and CHRONIC health hazards. IGNITION TEMPERATURE: The lowest temperature at which a substance will catch on fire and continue to burn. The lower the ignition temperature, the more likely the substance is going to be a fire hazard. INFLAMMABLE: Same as FLAMMABLE. INGESTION: Swallowing. LC50: 184

The concentration of a substance in air that causes death in 50% of the animals exposed by inhalation. A measure of acute toxicity. LD50. The dose that causes death in 50% of the animals exposed by swallowing a substance. A measure of acute toxicity. mg/kg A way of expressing dose: milligrams (mg) of a substance per kilogram (kg) of body weight. Example: a 100 kg (220 pound) person given 10,000 mg (about 0.02 pounds) of a substance would be getting a dose of 100 mg/kg (10,000 mg/100 kg). mg/m 3 A way of expressing the concentration of a substance in air: milligrams (mg) of substance per cubic meter (m 3 ) of air. MILLIGRAM (mg): One one-thousandth of a gram. MUTAGENIC: Capable of changing cells in such a way that future cell generations are effected. Mutagenic substances are usually considered suspect carcinogens. NIOSH: Abbreviation for the National Institute for Occupational Safety and Health, U.S. Department of Health and Human Services. NIOSH does research on occupational safety and health questions and makes recommendations to OSHA. ODOR THRESHOLD: The lowest concentration of a substance's vapor, in the air, that can be detected by smell. Odor thresholds are highly variable depending on the individual and the nature of the substance. OXIDIZER: Any substance that reacts violently with oxygen or gives off large amounts of energy in a chemical reaction. PEL: Permissible Exposure Limit an exposure limit published and enforced by OSHA as a legal standard that is the maximum acceptable exposure to an employee without respiratory protection. Usually expressed as an average exposure level over the work shift, but may also refer to the maximum over a shorter period (such as 15 or 30 minutes) or a ceiling concentration which is not to be exceeded even briefly. ph: A measure of how acidic or caustic (basic) a substance is on a scale of 1-14. ph I indicates that a substance is very acidic, ph 7 indicates that a substance is neutral, and ph 14 indicates that a substance is very caustic (basic). PPM: Parts per million; generally used to express small concentrations of one substance in a mixture such as a gas or vapor contaminant in air. REACTIVITY: The ability of a substance to undergo change, usually by combining with another substance or by breaking down. Certain conditions, such as heat and light, may cause a substance to become more reactive. Highly reactive substances may explode. SOLUBILITY: The amount of a substance that can be dissolved in solution, usually water. SUSPECT CARCINOGEN: A substance that might cause cancer in humans or animals, but has not been proven to do so. TERATOGENIC: 185

Capable of causing birth defects. TLV: Abbreviation for Threshold Limit Value (TLV ). Usually specified as a Time Weighted Average (TWA) exposure limit over 8-hours. This means that the actual exposure level may sometimes be higher, sometimes lower, but the average must not exceed the TLV. TLV s are calculated to protect most workers for a working lifetime. TOXIC SUBSTANCE: Any substance that can cause acute or chronic injury to the human body, or that is suspected of being able to cause disease or injury under some conditions. Many toxic substances are chemicals or chemical mixtures, but there are other kinds of toxic substances as well (bacteria and viruses, for example). VAPOR: The gas given off by a solid or liquid substance at ordinary temperatures. VAPOR DENSITY: The density of the gas given off by a substance. It is usually compared with air, which has a vapor density set at 1. If the vapor is denser than air (greater than 1), it will sink to the ground; if it is less dense than air (less than 1), it will rise. VOLATILITY: A measure of how quickly a substance forms vapors at ordinary temperatures. Vapor pressure is a measure of volatility. The lower the vapor pressure, the lower the volatility. 186