new wales quality control laboratory job safety hazard ... · pdf filenew wales quality...

New Wales Quality Control Laboratory Job Safety Hazard Analysis Program (JHSA, or “JSA”)

1. Auto Dispensers (Repipet)

2. Bico Pulverizer (Rock Grinder)

3. Changing Gas Cylinders

4. Changing Leco After-Burner Filter and Crucible

5. Cubitainers

6. Drying Ovens

7. Emptying Waste Product Containers

8. Filling Alcohol Containers

9. Hot Plate Sample Digestion

10. Leeman or Spectro ICP’s

11. Long-Neck 250 mL Volumetric Flasks

12. Muffle Furnace Crucible Handling

13. Phosphoric Acid Sample Handling

14. Pipeting

15. Screens

16. SiO2 Analysis

17. Sodium Fluoride Handling

18. Sulfuric Acid Sample Handling

19. Suspended Solids Gooch Crucibles Handling

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JOB SAFETY HAZARD ANALYSIS

INITIAL REVIEWED

Area: Quality Control Laboratory Prepared by: Prepared by:

Facility: New Wales Reviewed: Reviewed: Rey Marsella

JSA No.: Date written: Date reviewed: 01/24/2008

Approval (name): Rey Marsella Approval (name): Art EspinosaTask: Auto Dispensers (Repipet)

Approval signature: ______________ Approval signature: ______________

Step Work Step Potential Hazards Corrective Actions

1 Dispensing reagent, or solution,from one of the auto dispensers

Splash-back from dispensing

Cuts from a dispenser that breakswhen being used

Point tip away from body whendispensing. Be sure that dispenser tip isinside of receiving vessel beforedispensing liquid.

Use only moderate pressure to dispenseliquid. Clean or replace dispensers thatleak or require heavy pressure to use(Note: Do not clean or replace autodispenser until you have received propertraining).

2 Removing and cleaning of an autodispenser

Cuts or reagent burns frommishandling of the dispenser

Use caution when removing. Thedispenser drawing tube will drip whenthe dispenser is removed from itscontainer.

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INITIAL REVIEWED




Approval (name): Rey Marsella Approval (name): Art EspinosaTask: Bico Pulverizers (Rock and

Multifos Grinders)



1 Grinding sample Dust inha la t ion Turn on the exhaust fan and wear dustma sk. This rema ins in effect dur ing steps 2and 3. Feed rock to gr inder a t a modera tera t e, do n ot overload it . Be sure bot tomdra wer is closed t ight ly.

2 Opening the gr inder P inched or cut fingers Allow grinder to come to a COMP LETESTOP before opening

Use caut ion when opening and closing thepla te and top door due to their heavyweight and potent ia l for pinching fingers.Inspect face pla te la tch , lea f spr ing andother sma ll pa r t s for damage. Report anydamaged pa r t s r igh t away.

3 Cleaning the gr inder Compressed a ir haza rds In addit ion to the dust mask, wea r hea r ingprotect ion a nd eye, or face protect ion .Compressed a ir used for cleaning sha ll be ama ximum of 30 psig and only approvednozzles sha ll be used. Compressed a ir sha llnot be used for clea ning body, or clothes.



INITIAL REVIEWED

Area: Quality Control Laboratory Prepared by: David Averitt Prepared by: David Averitt

Facility: New Wales Reviewed: Rey Marsella Reviewed: Rey Marsella

JSA No.: Date written: 3/27/2008 Date reviewed: 3/28/2008

Approval (name): Rey Marsella Approval (name): Art EspinosaTask: Changing Gas Cylinders



1 Changing empty gas cylinder Not having the correct gas

Release of gas pressureDamage to regulator

Release of gas (helium or oxygen)

Fire in case of oxygen (supportscombustion)

Make sure you have the proper gas

Close cylinder valve. Do not over tighten.

Vent the gases by turning the adjustingknob clockwise and noting the pressuredrop on the gauge.

Do not smoke!

2 Removing regulator Wrench slipping off

Pinching hands or fingers

Use correct size wrench.

Use caution. Watch pinch points.

3 Replace cylinder valve cap Damage to cylinder valve Use caution in replacing cap. Do not overtighten. Be sure to label cylinder withempty tag.

4 Removing cylinder valve cap fromfull cylinder

Straining to remove over-tightenedcap.

Do not use wrenches or use excessive forceto remove cap. If over-tightened, label forsupplier.


5 Attaching regulator Using the wrong regulator

Wrench slipping off

Pinching hands or fingers

Damage to regulator

Bad regulator

Makes sure the proper regulator is selected

Use correct size wrench.

Use caution. Watch pinch points.

Turn the adjusting knob to full counter-clockwposition

Illegible, inoperative, or damaged regulators mbe removed from service immediately and tagout

6 Open cylinder valve and turn the adjusknob to the correct output pressure onlow-pressure gauge.

Damage to regulator

Pressure gauge blow up

Open valve slowly until the pressure stops rision the high-pressure gauge.

Do not stand in front of the cylinder gauges wopening the valves

Note that oxygen cylinder valves shall be fullyopen when in use

7 Verify cylinder is secured Cylinder could fall, break off valve, andbecome a missile. Employee could try tcatch falling cylinder, causing back straietc.

Ensure cylinder is attached securely to wall witcylinder bracket, and strap is in good conditionand secured. Empty cylinder valves must beclosed. Cylinder valve caps must be kept on wthe cylinder is not in use.

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INITIAL REVIEWED

Area: Quality Control Laboratory Prepared by: David Averitt Prepared by: David Averitt



Approval (name): Rey Marsella Approval (name): Art EspinosaTask: Leco TruSpec NitrogenAnalyzer – Changing After-BurnerFilter & Crucible Approval signature: ______________ Approval signature: ______________


1 Remove carousel assembly Dropping on foot Use caution and be aware that the weight ofthe assembly is greater than one mightexpect for its size.

2 Loosen three screws from loaderhead and lift off loader head. It isnot necessary to remove the gaslines.

Strains

Thermal burns

Use caution and be aware of the weight ofthe loader head.

Use caution. Bottom of loader head is hot.

3 Screw the lance extractor tool intothe small hole on the lance head andremove lance tube assembly

Thermal burns Use caution. Lance is very hot.

4 Place lance tube assembly and toolon the front door of the TruSpec

Thermal burns Use caution. Very hot.

5 Remove the crucible with the crucibleextractor tool by squeezing thehandle of the tool

Thermal burns Use caution. Crucible is very hot.

6 Place the crucible in the stainlesssteel tray in the back of the fumehood to cool.

Thermal burns Make sure the path to the fume hood isclear of other employees to preventtouching someone with the hot crucible.Put “HOT” sign by crucible to warn other


(cont’d)

employees that the crucible is hot.

7 Remove the quartz wool with thequartz wool extractor and placequartz wool in fume hood by thecrucible to cool. Discard the woolwhen cool.

Thermal burns Use caution. Quartz wool is very hot.

8 Roll three strips of quartz wool, oneat a time, and insert in top of furnacetube. Push down into the tube.

Thermal burns The combustion tube is very hot. Use quartwool extractor tool and use caution near hottube.

9 Insert new crucible with the crucibleextractor tool onto the top of thequartz wool

Thermal burns Use crucible extractor tool and use cautionnear hot combustion tube.

10 Replace the lance and loader head Thermal burns

Strains

Use caution.

Be aware loader head is somewhat heavy.

11 Replace carousel. Line up with twopins.

Thermal burns The combustion tube is very hot. Usecaution.

12 Open the front door of the Leco,open the cover to the after-burnerfilter, and grasp after-burner filterwith a paper towel. Lift up and pullthe bottom outwards. Replace with arefilled after-burner filter.

Cuts The glass tube of the after-burner filter maybreak. Use a paper towel in case ofbreakage and be aware of the possibility ofbreaking the glass tube.



INITIAL REVIEWED




Approval (name): Rey Marsella Approval (name): Art EspinosaTask: Cubitainers



1 Inspect con ta iners for leaks, loosecaps and damage to the ou tside boxor conta iner

Breakage of conta iner--spill or spla sh Use hand t ruck to t ranspor t theCubita iners in to the lab

2 Bring in to the lab the 5-ga lloncon ta iner

St ra ins from lift ing 5-ga llonCubita iners

Use proper lift ing a nd t ransport ingtechniques when using the hand t ruck

3 Disca rding empty cubita iners Residua l amount of reagent left inthe cubita iner

Triple-r inse the Cubita iners out with wa terbefore disca rding in the dumpster

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INITIAL REVIEWED




Approval (name): Rey Marsella Approval (name): Art EspinosaTask: Drying Ovens



1 Pla cing or removing sample pansfrom the la b ovens

Ha nd and a rm burns from the ovensand sample pans

Use handle clamps or hea t resistan t gloveswhen removing sample pans from the ovens

2 Ha ndling sample pans a fterremoving from the lab ovens

Ha nd burns Remember tha t the sample pans rema inhot for severa l minutes a fter their remova lfrom the ovens. Use clamps or gloves whenhandling hot pans.

When leaving hot sample pans una t tendeduse the “HOT” signs.

3 Oven Tem peratu re Aw aren essVa cuum Moist . Oven– 50°C / 122°FRock Grd. Moist .Oven–105°C / 221°FCrude Moist . Oven– 221°F / 105°CSa mple Drying Oven– 300°F / 149°C



INITIAL REVIEWED




Approval (name): Rey Marsella Approval (name): Art EspinosaTask: Emptying Waste Product

Containers



1 Lift ing or moving waste conta iners(“t ra sh” cans) with waste product

Chance of a back in jury Do not fill waste product conta iners a ll thewa y. Empty them when ha lf fu ll, or less.

When lift ing use your legs for lift ing, notyour back.

Get help if conta iner is too heavy to lift andca rry comfortably a nd sa fely.

2 Put t ing product in dumpsters Chance of a back in jury

Tripping on uneven ground

Slipping on slippery floor , or grounds

Get help if conta iner is too heavy to lift .

Be aware of surroundings.

Be a ler t to slipping haza rds.

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INITIAL REVIEWED




Approval (name): Rey Marsella Approval (name): Art EspinosaTask: Filling Alcohol Containers

From 55 gal Drums



1 Filling sma ll conta iners with methyla lcohol

Chance of fire if exposed to spa rk orflame

Spraying of solvent from lea king orpa r t ia lly stuck va lve

No smoking or open flame permit ted with in25 foot of solvent storage a rea

Use only approved sa fety conta iners.

Drum and conta iner must be grounded.

Ma ke sure tha t sea ls on pump mechanismare t ight . Use only modera te pressure whenusing pump. Clean up any spills.

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INITIAL REVIEWED




Approval (name): Rey Marsella Approval (name): Art EspinosaTask:

Hot Plate Sample Digestion



1 Pla cing or removing sample fla sks ona hot pla te

Burns from the hot pla te or samplefla sks

Exposure to ir r it a t ing fumes

Hot acid burns from a sampledigest ing on the hot pla te

Ma ke sure tha t protect ive gua rds a rea round the hot pla t es

Do not extend upper body in to the fumehood

Use ca re not to touch the hot pla te

Do not reach over a digest ing sample withany pa r t of the body

Use tongs to remove hot gla ssware

Allow glassware to cool before removingfrom the fume hoods

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INITIAL REVIEWED





Leeman or Spectro ICP’s



1 Set up and opera t ion of ICP Therma l burns from exhaust overpla sma

Cut to hand or fingers from remova lof nebulizer

Keep hands clea r of exhaust a rea whileinst rument is opera t ing

Use a stack of paper towels over the spraycha mber when removing or placingnebulizer to and from spray chamber

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INITIAL REVIEWED





Long-Neck 250 mL VolumetricFlasks Approval signature: ______________ Approval signature: ______________


1 Shaking or washing long neck gla ssfla sks (sizes 250 ml or la rger)

Potent ia l for gla ss neck to break,causing cut s

Stoppers ca n come loose whensha king (spraying digested sample onana lyst )

Use a folded stack of paper towels to inser tcorrect size stoppers with only modera teforce.

If a t a ll possible, use the au toma t ic shakerfor 250 mL fla sks. If a fla sk needs to besha ken ma nua lly, gra sp fla sk by neck a tstopper and bulb simultaneously and inver trepea tedly.

Be sure stopper is secure before sha kingfla sk.

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INITIAL REVIEWED





Muffle Furnace Crucible Handling



1 Inser t ing or removing crucibles fromthe muffle furnace

Burns can occur if contact is madewith hot pa r t s of the furnace or hotcrucibles

Use only long tongs for inser t ing andremoving crucibles from the furnace.

P la ce hot crucibles on the meta l coolingrack. P lace “HOT” signs by hot crucibles.

Be aware tha t the crucibles rema in veryhot for severa l minutes. Allow to coolcompletely before handling.

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INITIAL REVIEWED




Approval (name): Approval (name): Art EspinosaTask:

Phosphoric Acid Sample Handling



7 Handling phosacid sample cups Skin irritation from acid outsidethe sample cups

Be sure lids are tight.

Wash exterior of sample cups if there isphosacid on them.

Wash hands often. Wearing disposablelatex gloves is optional, butrecommended.

8 Opening, closing, and shakingphosacid sample cups

Sample spill.

Sample can get knocked over bysomeone who did not know lid wasnot on all the way

Potential for flinging phosacid whenshaking samples. Skin or eyeirritation from exposure to acidleaking from cups.

Close containers securely.

Do not leave open cups of phosacidunattended.

Wear safety glasses with side shields.Wash hands often. Wearing disposablelatex gloves is optional, butrecommended.

When shaking cup, hold a paper towelover it to prevent flinging acid. Shakesample cups below chest level. Never


shake them at eye level.



INITIAL REVIEWED

Area: Quality Control Lab Prepared by: Prepared by:




Pipeting



1 Pla cing pipet ing rubber bu lb* on apipet

*Note : Pipet ing by mouth is st r ict lyprohibited

Cuts from the pipet if it breaks Prior to use, a ll pipet s will have reinforcingtape applied.

Gra sp the pipet nea r the top (with in 2-3inches) and gent ly place the bulb on thepipet .

Never hold the pipet nea r the middle whenpla cing a bulb on the end. A pipet cansha t ter in one’s hand if held improper ly.

Never force a bulb onto a pipet by usingundue pressure. A t ight -fit t ing bulbusua lly can be put on by first wet t ing thebulb a t the inser t ion poin t . Use a differentsize bulb if the one you a re t rying to usewill not go on easily

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INITIAL REVIEWED





Screens



1 Opening and closing the soundenclosure lid.

Bodily in ju ry. Lid may close with amin imum of applied force when gasspr ings a re not fu lly extended

Use caut ion when ra ising a nd lower ing thesound enclosure lid. Keep hands, head andrest of body out of line of fire.

2 Pla cing and removing screens fromthe shakers

Lacera t ions to fingers from damagedscreens

P inched fingers

In jury from loose top pla te

Wrist and a rm st ra ins

Inspect screens for damage before using.Replace da maged screens, or screens tha tdo not fit correct ly.

Avoid placing fingers in potent ia l pinchpoin t s (between the screens and the screenholder)

Adjust height of bot tom holder to a llow forproper fit of the top pla te.

Use proper tool for sepa ra t ing screens.

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INITIAL REVIEWED





SiO2 Analysis



1 Dispensing st rong minera l acids(Nit r ic / HF) from a uto dispenser

Chemica l burns from spla shbackfrom dispenser , and spa t ter ing(Calc iu m glu con ate sh ou ld bec lose at h an d).

Fume hood MUST be on.Wear required PPE*Poin t dispenser away from you whiledispensing, and ma ke sure t ip is on side ofvessel.Inspect and clean dir ty and faultydispenser .Be aware of rema in ing droplet s ondispenser .

2 Microwave digest ion of samples Membrane ruptures, relea sing acidmist and making vessel project ile,noxious fumes

Fume hood MUST be on.Always digest samples on turn table.Inspect rupture membranes before eachuse.

3 Ha ndling hot vessels out ofmicrowave

Therma l burns Use turn ta ble to hold samples; it st ayscooler than digest ion vessels.

4 Transfer of digested sample fromdigest ion vessel to fla sk

Acid and therma l burns from samples Fume hood MUST be on.Wear required PPE*Use caut ion in t ransfera l. Make sure 5%bor ic acid is in fla sk.


4.* Persona l Protect ive Equipment : Apron,

disposable sleeves, disposable gloves andfa ce shield

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INITIAL REVIEWED

Area: Quality Control Laboratory Prepared by: David W. Averitt Prepared by: David W. Averitt



Approval (name): Rey Marsella Approval (name): Art EspinosaTask: Sodium Fluoride/SodiumFluoride Solution Handling



1 Transfer of sodium fluoride fromreagent bottle to drying/storagecontainer

Skin/eye irritation, inhalation,ingestion

Transfer carefully, avoiding dust formationand/or skin/eye contact. Wear disposablelatex gloves.

2 Weighing sodium fluoride forsolutions


Use due caution, avoiding dust formation.Keep dried sodium fluoride container tightlysealed when not in use.

3 Transfer weighed sodium fluoride tovolumetric flask


Use due caution, avoiding sodium fluoridedust.

4 Adding 1:1 hydrochloric acid toweighed sodium fluoride

Formation of toxic gas/inhalation oftoxic gas

Add D.I. water to flask and dissolve sodiumfluoride prior to adding hydrochloric acidunder the fume hood. Wear disposable latexgloves.

5 Mixing sodium fluoride standards Skin/eye irritation Mix with stir bar/stir plate, not by invertingvolumetric flask.

6 Transferring sodium fluoridestandards to Nalgene bottles

Skin/eye irritation Use due caution. Wear disposable latexgloves.

7 Pipetting sodium fluoride standards Skin/eye irritation Use due caution. Avoid skin/eye contactwith solution.


8 Disposal of sodium fluoride/sodiumcitrate solutions

Skin/eye irritation Use caution to avoid contact with skin/eyes.Flush down lab sink with copious amount ofwater. Rinse disposable beakers (specimencups) with water prior to disposal.

9 Steps 1-8 Skin/eye irritation, inhalation,ingestion

If skin contact, flush with water for 15minutes. If eye contact, flush with waterfor 30 minutes. In any case of coming incontact with sodium fluoride, or asodium fluoride solution, notifysupervisor and get medical attentionimmediately.



INITIAL REVIEWED




Approval (name): Rey Marsella Approval (name): Art EspinosaTask: Sulfuric Acid Sample

Handling and Analysis



1 Picking up and returning sulfuricacid samples from the plant

Sulfuric acid on the outside ofbottles

Use of unsafe containers

Use of unsafe carrier

Wear disposable gloves when handlingthe samples.

The samples must be contained inNalgene4 oz / 125 mL Teflon (FFP) bottles. Donot pick up sulfuric samples that are notin the specified bottles.

Use only approved cradles and carriersfor transporting samples.

2 Weighing sulfuric acid samples Potential for spilling, splashing, orflinging sulfuric acid, causing acidburns

Do not remove the acid bottles from thecarriers. By keeping the bottles in thecarrier at all times, they cannot spilloutside of the carrier.

Wear the required PPE: disposablegloves, arm protection (sleeves), labapron or lab coat and face shield.

Use only clean and dry disposable pipets.Do not pass pipet with sulfuric acid in it


across any part of your body. Usecaution to not have the pipet “fling” anyacid from the tip. Rinse used pipet withwater when done and discard it.

Always add acid to water (NEVER addwater to acid)

3 % H2SO4 Titration – Clampingsample cup onto Mettler Autotitratorarm

Spill dilute acid solution Use caution when clamping onto titrationarm. If spilled, wipe up immediately.

4 % H2SO4 Titration – Refillingsodium hydroxide container

Chemical burns If spilled on skin, flush with copiousamount of water.

5 Fe ppm Hach Method – Ferrozinereagent addition

Reagent is harmful if absorbedthrough the skin. See MSDS.

Keep gloves and sleeves, or lab coat, onwhile adding the ferrozine reagent.

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INITIAL REVIEWED




Approval (name): Rey Marsella Approval (name): Art EspinosaTask:Suspended Solids Gooch CruciblesHandling Approval signature: ______________ Approval signature: ______________


13 Placing or removing suspendedsolids crucibles on the manifold

Cracked crucibles can break andcause hand injury

Excessive force can cause crucibleto break

Inspect all crucibles prior to use. Discardimmediately any that are cracked.

When placing crucibles on the manifold,use gentle (but firm) pressure. A slighttwist can help achieve a secure fit.

Before removing crucibles from themanifold, release the vacuum on thecrucible. Turn off the vacuum andremove a rubber stopper from a positionnot being used, or open the drain valve.

Kevlar gloves are available, but they arenot required.

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