KYRENE SCHOOL DISTRICTSCIENCE TEACHER TRAINING

Laboratory instructors are responsible for training students and visitors, ensuring the use of appropriate personal protective equipment, and controlling overcrowding during laboratory exercises. Instructors are also responsible for maintaining discipline and enforcing all safety rules

Introduction

Injury rates are highest during initial period of employment and decreases with experience.

In a school laboratory setting where students experience new activities, the likelihood of incidents and injury is high.

Students MUST be taught what can go wrong, how to prevent events from occurring, and what to do in case of an emergency.

Part of the curriculum MUST address safety.

HOWEVER, teachers are required to: Observe, Supervise, Instruct, and Correct student actions

WHY BE CONCERNED

Health Hazards Safety Hazards Environmental Harm Hidden Costs = Liability, lawsuits, fines,

deductibles

KYRENE MIDDLE SCHOOLs TEACHER’S REPSONSIBILITIES

Teacher completed safety training; completed annually and name/date documented

Student safety orientation documented. Student test results are retained

Student safety contract signed by student and parent are retained

Written lab safety rules to each student Safety rules posted and/or referred to during labs Proper chemical and glass spill clean-up communicated to

student

TEACHER’S RESPONSIBILITIES

Lead by example. Teach safety as part of the curriculum. Follow and enforce safety rules,

procedures and practices. Promote a culture of safety. Make safety a priority.

TEACHER’S RESPONSIBILITIES

Conduct regular inspections of safety and first aid equipment (document).

Notify administration in writing of hazardous or potentially hazardous conditions.

Never use defective equipment.

Eye Wash Stations

Meets ANSI Z358.1. Heads 33”-45” from floor. 6” from the wall or

nearest obstruction. Treat both eyes with water

flow for at least 15 minutes.

Activated for 3 minutes every week.

Inspected annually. Free and unobstructed

path and use zone.

When Working with Open Flame or Heating

Element

Fire blankets are fire safety items that can be useful in case of a fire. These nonflammable blankets are helpful in temperatures up to 900 degrees and are useful in smothering small fires by not allowing any oxygen to the fire.

It is best to store fire blankets in or adjacent to the work area but not too close to a potential hazard.

Fire Blankets

FIRE EXTIGUSHER AVAILABLE

Fire Extinguisher “quick checks” shall include at least the following items (NFPA 10 4-3.2): Fire extinguishers are located in

designated place. No obstruction to access or visibility. Operating instructions on nameplate

legible and facing forward. Safety seals and tamper indicator are not

broken or missing. Examined for obvious physical damage,

corrosion, leakage, or clogged nozzle. Pressure gauge reading or indicator in

the operable range or position.

Eye Safety

Responsible science teachers must provide students with safe, appropriate eye protection.

• Safety eye wear available and used when working with any liquids, dust, heat, etc;

Safety eye wear must be used with projectiles and/or moving objects such as turbines (Safety glasses do NOT provide splash protection.)

Safety eye wear stored in a closed, sanitary container

Safety Data Sheets

Under the new Haz Com Standard called Global Harmonization System or GHS, Material Safety Data Sheets (MSDS) are now called Safety Data Sheets (SDS).

All SDSs will have a consistent 16-section format.

Employers must ensure that SDSs are readily accessible to employees.

Global Harmonization System (GHS) is a combination of:

United Nations (UN): harmonized system;

UN: transport of dangerous goods;

USA and Canada: workplace, consumers, and pesticides; and

European Union: classification and labeling of substances.

GHS Overview

Why GHS?

label requirements were different: multiple labels, same product

hazard definitions were inconsistent: toxicity, flammability, etc.

over 100 HAZCOM regulations globally♦ compliance is complex and costly♦ international trade of chemicals was limited

What did it look like previously?

What they look like after GHS?

Hazard Classification

Criteria to classify a hazard:

• physical: 16 categories• health: 10 categories• environmental

(g) Safety Data Sheets (SDSs)New 16-section standardized SDS format required (ANSI Z400.1)

Section 1 – IdentificationSection 2 – Hazard(s) identification Section 3 – Composition / Information

on IngredientsSection 4 – First-aid MeasuresSection 5 – Fire-fighting MeasuresSection 6 – Accidental Release

MeasuresSection 7 – Handling and StorageSection 8 – Exposure Controls /

Personal ProtectionSection 9 – Physical and Chemical

Properties

Section 10 – Stability and ReactivitySection 11 – Toxicological InformationSection 12 – Ecological Information*Section 13 – Disposal Consideration*Section 14 – Transport Information*Section 15 – Regulatory Information*Section 16 – Other information

including date of preparation of last revision

*Sections outside of OSHA jurisdiction but inclusion of these sections is necessary for a GHS compliant SDS

Symbols with red borders (hazard pictograms)

Labels

Labels: Pictograms

There are 9 pictograms. Only 8 are regulated by OSHA Health Hazards Physical Hazards Environmental Hazards (Regulated by Department of

Environmental Quality)

DEQ

Labels: Pictograms – Health Hazards

Acute toxicity (Less Severe):IrritantDermal sensitizerAcute toxicity (harmful)Narcotic effectsRespiratory tract irritation

Acute toxicity (Severe)

Acute = short-term effect

Labels: Pictograms – Health Hazards (continued)

Skin corrosionSerious eye damage/Eye irritation

CarcinogenRespiratory sensitizerReproductive toxicityTarget organ toxicityMutagenicityAspiration Hazard

Labels: Pictograms – Physical Hazards

FlammablesSelf reactivesPyrophoricsSelf heatingEmits flammable gasOrganic peroxides

ExplosivesSelf reactivesOrganic peroxides

Labels: Pictograms – Physical Hazards(continued)

Corrosive to Metals

Gases under Pressure

Oxidizer

GHS Will Use:signal words: “Danger” or “Warning,” hazard statements: “Toxic if Swallowed,”appropriate precautions, proper identification, and/or applicable supplemental

There are several new label elements: Symbols called

“Pictograms” Signal Words Hazard Statements Precautionary

Statements Product Identification Supplier/Manufacturer

Identification

GHS Flammability Rating

1: extreme “Danger”(flammability class IA)

2: moderate “Danger”(flammability class IB)

3: slight “Warning” (flammability class IC)(combustible class II)

4: combustible “Warning”(combustible class IIIA)

(No rating for Combustible Class IIIB or lower)

LABELING

Use labels with good adhesive. Use permanent marker. Print legibly. Replace damaged, faded, or semi-attached

labels.

LABELING

NO UNLABLED SUBSTANCE SHOULD BE PRESENT IN

THE LABORATORY AT ANY TIME !!!

LABELING (continued)

When chemicals are transferred from the originalmanufacturer’s container to another container that isreferred to as a “Secondary Container”Label all Secondary Containers with: Chemical name .

(as it appears on the SDS). Name of manufacture. Concentration or purity. Date prepared. Expiration or “use by” date.

LABELING (continued)

Containers in immediate use that are to beused within a day or session:

Chemical name (as it appears on the SDS). Necessary handling. Hazard Information.

LABELING (continued)

Chemical waste containers should belabeled as follows:

“WASTE” or “HAZARDOUS WASTE”. Chemical Name (as it appears on the SDS). Accumulation start date. Hazard(s) associated with the waste.

STORAGE ROOM MUST HAVES

Spill Control and clean-up materials. Master control shut-off valves for gas, water, and

electricity. Smoke detector (tested regularly). Proper ventilation and exhaust (dependent on what is

being stored). Safety cabinets for specific groups of compatible

substances. A communication system to the main office or

emergency center.

STORAGE ROOM MUST HAVES (Shower)

Meets ANSI Z358.1. Heads 82”-96” from

floor. Spray pattern

minimum diameter of 20” at 60” above floor.

Center of spray pattern at least 16” from any obstruction.

Inspected annually. Free and

unobstructed path and use zone.

CHEMICAL STORAGE (continued)

Criteria for Storage Area:

Store chemicals inside closeable cabinets or on sturdy shelves with front-edge lip (3/4”) to prevent accidents and spills.

Secure shelving to the wall or floor. Ensure that all storage areas have doors with locks. Keep chemical storage areas off limits to students. Ventilate storage areas adequately.

CHEMICAL STORAGE (continued)

Organization:

Organize chemicals first by COMPATIBILITY – not alphabetic succession.

Store alphabetically within compatible groups.

CHEMICAL STORAGE (continued)Chemical Segregation:Store acids in a dedicated acid cabinet. Nitric acid should be stored alone. Store highly toxic chemicals in a dedicated, lockable poison cabinet

that has been labeled with a highly visible sign. Store volatile and odoriferous chemicals in a ventilated cabinet. Store flammables in an approved flammable liquid storage cabinet.

More than 10 gallons of flammable/combustible liquids must be in cabinet

Storage in flammable cabinet must no exceed design quantities (e.g. 60 gallons)

Cabinets should be properly vented if there is a potential for buildup of hazardous vapors.

Store water sensitive chemicals in a water-tight cabinet in a cool and dry location segregated from all other chemicals.

CHEMICAL STORAGE (continued)

Storage Don’ts:

Do not place heavy items, liquid chemicals, or large containers on high shelves.

Do not store chemicals on top of cabinets. Do not store chemicals on the floor (even temporarily). Do not store items on bench tops or in fume hoods (except

when in use). Do not store chemicals on shelves above eye level. Do not store chemicals with food or drink. Do not store chemicals in food storage refrigerators. Do not expose stored chemicals to direct heat or sunlight, or

highly variable temperatures.

CHEMICAL STORAGE (continued)

Proper Use of Chemical Storage Container: Never use food containers for chemical storage

CHEMICAL STORAGE (continued)

Proper Use of Chemical Storage Container: Make sure all containers are properly closed or stopped

CHEMICAL STORAGE (continued)

Proper Use of Chemical Storage Container:

After each use, wipe down the outside of the container with a paper towel before returning it to the storage and properly dispose of the paper towel after use.

GOALS FOR CHEMICAL STORAGE

Aim for removal of hazardous or excess chemicals.

Assure no future accumulation of excess or hazardous chemicals.

Assure all personnel are trained in proper safety precautions.

HOUSEKEEPING!!!

GOALS FOR CHEMICAL STORAGEHousekeeping “field day”,particular consideration andattention should be give to:

Disposing of any unused/unneeded materials.

Reorganizing storage areas. Removal or correction of

electrical and fire code violations.

General cleaning of work surface areas.

SAFETY GUIDELINES

Know what chemicals you work with. Read the label. Follow all established safety policies and

procedures for chemical handling and storage.

Use the proper personal protective equipment.

Wash your hands before eating, drinking, applying make-up, etc.

Appropriate location for exposure

Federal OSHA ResourcesHaz Com Web Page - www.osha.gov/dsg/hazcom/index.html

Regulatory• Haz Com 2012 Final Rule

• Haz Com Comparison: Haz Com 1994 and 2012 – Side-by-side – Redline Strikeout of the

Regulatory Text

• FAQs

Guidance • OSHA Briefs • Fact Sheet • Quick Cards

– Labeling– Safety Data Sheets– Pictograms– Effective Dates

• OSHA Guide to GHSwww.osha.gov/dsg/hazcom/ghs.html

• GHS documents (links to purple book)