Lab Safety Forensic Science.

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Presentation transcript:

Lab Safety Forensic Science

Copyright and Terms of Service Copyright © Texas Education Agency, 2011. These materials are copyrighted © and trademarked ™ as the property of the Texas Education Agency (TEA) and may not be reproduced without the express written permission of TEA, except under the following conditions: 1)  Texas public school districts, charter schools, and Education Service Centers may reproduce and use copies of the Materials and Related Materials for the districts’ and schools’ educational use without obtaining permission from TEA. 2)  Residents of the state of Texas may reproduce and use copies of the Materials and Related Materials for individual personal use only, without obtaining written permission of TEA. 3)  Any portion reproduced must be reproduced in its entirety and remain unedited, unaltered and unchanged in any way. 4)  No monetary charge can be made for the reproduced materials or any document containing them; however, a reasonable charge to cover only the cost of reproduction and distribution may be charged. Private entities or persons located in Texas that are not Texas public school districts, Texas Education Service Centers, or Texas charter schools or any entity, whether public or private, educational or non-educational, located outside the state of Texas MUST obtain written approval from TEA and will be required to enter into a license agreement that may involve the payment of a licensing fee or a royalty. Contact TEA Copyrights with any questions you may have.

The Purpose of Lab Safety Science courses are hands-on, and usually include many laboratory and/or field investigations Safety in the science classroom should be the number one priority of teachers, students, and parents

The Purpose of Lab Safety (continued) Knowledge of safe practices includes what to do if an emergency occurs in the class Identifying potential dangers that may occur in the classroom, labs, and field investigations could be vital to preventing accidents from happening, but only if everyone knows what to look for

General Safety Rules Students should Follow all directions given by the teacher at all times Read the instructions completely before starting the lab Know where all safety equipment is in the laboratory, including but not limited to Eyewash station Fire extinguisher First aid kit Safety shower

General Safety Rules (continued) Students should (continued) Work in a well-ventilated area and/or use the fume hood at all times Wash hands before and after labs with soap and water Keep their personal lab areas clean Confirm that the lab area and all equipment is cleaned and/or unplugged before leaving Notify the teacher immediately of any spills or accidents

General Safety Rules (continued) Students should not Begin any lab until told to do so or without the teacher present Bring any food, drinks, or gum into the laboratory Goof around or allow any horseplay in the lab

Protective Clothing and Equipment Rules Eyewear Safety goggles should be worn for the entirety of all labs If contact lenses are worn, an eye doctor and the teacher should be consulted before performing any labs Eyeglasses should never be worn in lieu of safety goggles

Protective Clothing and Equipment Rules (continued) Gloves No glove can protect from all hazards Always check for rips, tear, or holes Assess the lab and see what type of gloves are best for that situation Cloth – good for light abrasives, but not for liquids Rubber – good for solvents and corrosives Leather – good for heat, sparks, and rough abrasives

Protective Clothing and Equipment Rules (continued) Attire Wear closed-toed, low, or non-heeled shoes Wear long pants and long-sleeved shirts around chemicals or specimens Wear aprons and/or lab coats during labs Pull hair out of the way and away from the face Do not wear loose or baggy clothing and/or dangling jewelry in the lab

Chemical Rules Do not taste or smell any chemicals in the lab, unless a teacher directs otherwise To smell a chemical always “waft” it Waft – wave your hand above the chemical towards your nose so that small amounts of vapor can be smelled without causing harm Make sure to clearly label all chemicals for others

Chemical Rules (continued) Ensure accurate use by reading the label twice before using the chemical in the lab Avoid contamination by not returning used chemicals back into their original container Dispose of chemicals using the method described on the container and/or the Material Safety Data Sheet (MSDS)

Chemical Rules (continued) Add acid to water, never water to acid (adding water to acid could cause acid to splash out of the container and cause harm) Be careful with flammable chemicals near any heat source Do not take any chemicals out of the lab for any reason Keep chemical containers that are not being used closed Notify the teacher immediately if any chemical is spilt at any time

Glassware and Equipment Rules Do not use dirty, chipped, or broken glassware in the lab Notify the teacher immediately if/when any glassware is broken, so he or she can clean it up Inform the teacher of any damaged electrical equipment Use protective equipment when handling glassware (hot and cold glassware look similar)

Heating Substances Rules Never leave any heat sources unattended (whether a hot plate or a Bunsen burner) Never lean over a flame Always point the open end of a heated test tube away from yourself and others Always use tongs or protective gloves to handle heated glass or metal Always make sure that long hair is pulled back when dealing with a flame or heat

Material Safety Data Sheet (MSDS) MSDS’s are available for every chemical (online and/or hardcopy) MSDS’s always include Chemical product information Ingredients Hazard identification First aid measures Firefighting measures Accidental release measures Handling and storage Exposure controls/Personal protection Physical and chemical properties Stability and reactivity Toxicological information Ecological information Disposal considerations Transport information Regulatory information Any additional information

Resources Flinn Scientific, Inc. www.flinnsci.com Occupational Safety & Health Administration www.osha.gov Texas Education Agency, Forensic Certification Training, Sam Houston State University