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

Transcription

1 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

2 JSA No.: Date written: Date reviewed: 01/24/2008 Task: Auto Dispensers (Repipet) Approval signature: Approval signature: 1 Dispensing reagent, or solution, from one of the auto dispensers 2 Removing and cleaning of an auto dispenser Splash-back from dispensing Cuts from a dispenser that breaks when being used Cuts or reagent burns from mishandling of the dispenser Point tip away from body when dispensing. Be sure that dispenser tip is inside of receiving vessel before dispensing liquid. Use only moderate pressure to dispense liquid. Clean or replace dispensers that leak or require heavy pressure to use (Note: Do not clean or replace auto dispenser until you have received proper training). Use caution when removing. The dispenser drawing tube will drip when the dispenser is removed from its container. nw_lab_jsha-2.doc Pg. 2 of 27

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4 JSA No.: Date written: Date reviewed: 01/24/2008 Task: Bico Pulverizers (Rock and Multifos Grinders) Approval signature: Approval signature: 1 Grinding sample Dust inhalation Turn on the exhaust fan and wear dust ma sk. This remains in effect during steps 2 and 3. Feed rock to grinder at a moderate rate, do n ot overload it. Be sure bottom dra wer is closed tightly. 2 Opening the grinder Pinched or cut fingers Allow grinder to come to a COMP LETE STOP before opening Use caution when opening and closing the pla te and top door due to their heavy weight and potentia l for pinching fingers. Inspect face plate la tch, lea f spring and other small parts for damage. Report any damaged parts right away. 3 Cleaning the grinder Compressed air hazards In addition to the dust mask, wear hearing protection a nd eye, or face protection. Compressed air used for cleaning shall be a ma ximum of 30 psig and only approved nozzles sha ll be used. Compressed air shall not be used for clea ning body, or clothes. nw_lab_jsha-2.doc Pg. 4 of 27

5 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 Task: Changing Gas Cylinders Approval signature: Approval signature: 1 Changing empty gas cylinder Not having the correct gas Release of gas pressure Damage to regulator Release of gas (helium or oxygen) Fire in case of oxygen (supports combustion) Make sure you have the proper gas Close cylinder valve. Do not over tighten. Vent the gases by turning the adjusting knob clockwise and noting the pressure drop 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 over tighten. Be sure to label cylinder with empty tag. 4 Removing cylinder valve cap from full cylinder Straining to remove over-tightened cap. Do not use wrenches or use excessive force to remove cap. If over-tightened, label for supplier. nw_lab_jsha-2.doc Pg. 5 of 27

6 5 Attaching regulator Using the wrong regulator Wrench slipping off Makes sure the proper regulator is selected Use correct size wrench. Pinching hands or fingers Use caution. Watch pinch points. 6 Open cylinder valve and turn the adjus knob to the correct output pressure on low-pressure gauge. Damage to regulator Bad regulator Damage to regulator Pressure gauge blow up Turn the adjusting knob to full counter-clockw position Illegible, inoperative, or damaged regulators m be removed from service immediately and tag out Open valve slowly until the pressure stops risi on the high-pressure gauge. Do not stand in front of the cylinder gauges w opening the valves Note that oxygen cylinder valves shall be fully open when in use 7 Verify cylinder is secured Cylinder could fall, break off valve, and Ensure cylinder is attached securely to wall wit become a missile. Employee could try t cylinder bracket, and strap is in good condition catch falling cylinder, causing back strai and secured. Empty cylinder valves must be etc. closed. Cylinder valve caps must be kept on w the cylinder is not in use nw_lab_jsha-2.doc Pg. 6 of 27

7 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: 3/31/2008 Task: Leco TruSpec Nitrogen Analyzer Changing After-Burner Filter & Crucible Approval signature: Approval signature: 1 Remove carousel assembly Dropping on foot Use caution and be aware that the weight of the assembly is greater than one might expect for its size. 2 Loosen three screws from loader head and lift off loader head. It is not necessary to remove the gas lines. Strains Thermal burns Use caution and be aware of the weight of the loader head. Use caution. Bottom of loader head is hot. 3 Screw the lance extractor tool into the small hole on the lance head and remove lance tube assembly 4 Place lance tube assembly and tool on the front door of the TruSpec 5 Remove the crucible with the crucible extractor tool by squeezing the handle of the tool 6 Place the crucible in the stainless steel tray in the back of the fume hood to cool. Thermal burns Thermal burns Thermal burns Thermal burns Use caution. Lance is very hot. Use caution. Very hot. Use caution. Crucible is very hot. Make sure the path to the fume hood is clear of other employees to prevent touching someone with the hot crucible. Put HOT sign by crucible to warn other nw_lab_jsha-2.doc Pg. 7 of 27

8 7 Remove the quartz wool with the quartz wool extractor and place quartz wool in fume hood by the crucible to cool. Discard the wool when cool. 8 Roll three strips of quartz wool, one at a time, and insert in top of furnace tube. Push down into the tube. 9 Insert new crucible with the crucible extractor tool onto the top of the quartz wool Thermal burns Thermal burns Thermal burns (cont d) employees that the crucible is hot. Use caution. Quartz wool is very hot. The combustion tube is very hot. Use quart wool extractor tool and use caution near hot tube. Use crucible extractor tool and use caution near 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 two pins. 12 Open the front door of the Leco, open the cover to the after-burner filter, and grasp after-burner filter with a paper towel. Lift up and pull the bottom outwards. Replace with a refilled after-burner filter. Thermal burns Cuts The combustion tube is very hot. Use caution. The glass tube of the after-burner filter may break. Use a paper towel in case of breakage and be aware of the possibility of breaking the glass tube. nw_lab_jsha-2.doc Pg. 8 of 27

9 JSA No.: Date written: Date reviewed: 01/24/2008 Task: Cubitainers Approval signature: Approval signature: 1 Inspect containers for leaks, loose caps and damage to the outside box or container 2 Bring into the lab the 5-ga llon container Breakage of container--spill or splash Strains from lifting 5-gallon Cubitainers Use hand truck to transport the Cubitainers into the lab Use proper lifting a nd transporting techniques when using the hand truck 3 Discarding empty cubitainers Residual amount of reagent left in the cubitainer Triple-rinse the Cubitainers out with water before disca rding in the dumpster nw_lab_jsha-2.doc Pg. 9 of 27

10 JSA No.: Date written: Date reviewed: 01/25/2008 Task: Drying Ovens Approval signature: Approval signature: 1 Pla cing or removing sample pans from the la b ovens 2 Ha ndling sample pans after removing from the lab ovens 3 Oven Temperatu re Aw aren ess Va cuum Moist. Oven 50 C / 122 F Rock Grd. Moist.Oven 105 C / 221 F Crude Moist. Oven 221 F / 105 C Sa mple Drying Oven 300 F / 149 C Ha nd and a rm burns from the ovens and sample pans Ha nd burns Use handle clamps or heat resistant gloves when removing sample pans from the ovens Remember that the sample pans remain hot for several minutes after their removal from the ovens. Use clamps or gloves when handling hot pans. When leaving hot sample pans una ttended use the HOT signs. nw_lab_jsha-2.doc Pg. 10 of 27

11 JSA No.: Date written: Date reviewed: 01/24/2008 Task: Emptying Waste Product Containers Approval signature: Approval signature: 1 Lifting or moving waste containers ( trash cans) with waste product Chance of a back injury Do not fill waste product containers all the wa y. Empty them when ha lf full, or less. When lifting use your legs for lifting, not your back. Get help if container is too heavy to lift and carry comfortably a nd safely. 2 Putting product in dumpsters Chance of a back injury Tripping on uneven ground Slipping on slippery floor, or grounds Get help if container is too heavy to lift. Be aware of surroundings. Be alert to slipping hazards nw_lab_jsha-2.doc Pg. 11 of 27

12 JSA No.: Date written: Date reviewed: 01/25/2008 Task: Filling Alcohol Containers From 55 gal Drums Approval signature: Approval signature: 1 Filling sma ll conta iners with methyl alcohol Chance of fire if exposed to spark or flame Spraying of solvent from lea king or partially stuck valve No smoking or open flame permitted within 25 foot of solvent storage area Use only approved safety containers. Drum and container must be grounded. Ma ke sure that sea ls on pump mechanism are tight. Use only moderate pressure when using pump. Clean up any spills nw_lab_jsha-2.doc Pg. 12 of 27

13 JSA No.: Date written: Date reviewed: 02/05/2008 Task: Hot Plate Sample Digestion Approval signature: Approval signature: 1 Pla cing or removing sample flasks on a hot plate Burns from the hot plate or sample fla sks Ma ke sure that protective guards a re around the hot plates Exposure to irritating fumes Do not extend upper body into the fume hood 2 3 Hot acid burns from a sample digesting on the hot plate Use care not to touch the hot plate Do not reach over a digesting sample with any part of the body Use tongs to remove hot gla ssware Allow glassware to cool before removing from the fume hoods nw_lab_jsha-2.doc Pg. 13 of 27

14 JSA No.: Date written: Date reviewed: 02/05/2008 Task: Leeman or Spectro ICP s Approval signature: Approval signature: 1 Set up and operation of ICP Thermal burns from exhaust over pla sma Keep hands clear of exhaust area while instrument is opera ting Cut to hand or fingers from remova l of nebulizer Use a stack of paper towels over the spray cha mber when removing or placing nebulizer to and from spray chamber nw_lab_jsha-2.doc Pg. 14 of 27

15 JSA No.: Date written: Date reviewed: 02/05/2008 Task: Long-Neck 250 ml Volumetric Flasks Approval signature: Approval signature: 1 Shaking or washing long neck glass fla sks (sizes 250 ml or larger) Potential for glass neck to break, causing cuts Stoppers ca n come loose when sha king (spraying digested sample on ana lyst) Use a folded stack of paper towels to insert correct size stoppers with only moderate for ce. If a t all possible, use the automatic shaker for 250 ml flasks. If a flask needs to be sha ken ma nually, grasp fla sk by neck at stopper and bulb simultaneously and invert repeatedly. Be sure stopper is secure before sha king fla sk nw_lab_jsha-2.doc Pg. 15 of 27

16 JSA No.: Date written: Date reviewed: 02/05/2008 Task: Muffle Furnace Crucible Handling Approval signature: Approval signature: 1 Inserting or removing crucibles from the muffle furnace Burns can occur if contact is made with hot pa rts of the furnace or hot crucibles Use only long tongs for inserting and removing crucibles from the furnace. Pla ce hot crucibles on the metal cooling rack. Place HOT signs by hot crucibles. Be aware that the crucibles remain very hot for several minutes. Allow to cool completely before handling. nw_lab_jsha-2.doc Pg. 16 of 27

17 JSA No.: Date written: Date reviewed: 12/9/2008 Task: Phosphoric Acid Sample Handling Approval (name): Approval (name): Art Espinosa Approval signature: Approval signature: 7 Handling phosacid sample cups Skin irritation from acid outside the sample cups Be sure lids are tight. Wash exterior of sample cups if there is phosacid on them. 8 Opening, closing, and shaking phosacid sample cups Sample spill. Sample can get knocked over by someone who did not know lid was not on all the way Potential for flinging phosacid when shaking samples. Skin or eye irritation from exposure to acid leaking from cups. Wash hands often. Wearing disposable latex gloves is optional, but recommended. Close containers securely. Do not leave open cups of phosacid unattended. Wear safety glasses with side shields. Wash hands often. Wearing disposable latex gloves is optional, but recommended. When shaking cup, hold a paper towel over it to prevent flinging acid. Shake sample cups below chest level. Never nw_lab_jsha-2.doc Pg. 17 of 27

18 nw_lab_jsha-2.doc Pg. 18 of 27 shake them at eye level.

19 Area: Quality Control Lab Prepared by: Prepared by: JSA No.: Date written: Date reviewed: 02/05/2008 Task: Pipeting Approval signature: Approval signature: 1 Pla cing pipeting rubber bulb* on a pipet 2 *Note: Pipeting by mouth is strictly prohibited Cuts from the pipet if it breaks Prior to use, all pipets will have reinforcing tape applied. Gra sp the pipet nea r the top (within 2-3 inches) and gently place the bulb on the pipet. Never hold the pipet near the middle when pla cing a bulb on the end. A pipet can sha tter in one s hand if held improperly. Never force a bulb onto a pipet by using undue pressure. A tight-fitting bulb usually can be put on by first wetting the bulb at the insertion point. Use a different size bulb if the one you are trying to use will not go on easily nw_lab_jsha-2.doc Pg. 19 of 27

20 JSA No.: Date written: Date reviewed: 02/05/2008 Task: Screens Approval signature: Approval signature: 1 Opening and closing the sound enclosure lid. 2 Pla cing and removing screens from the shakers 3 4 Bodily injury. Lid may close with a minimum of applied force when gas springs are not fully extended Lacerations to fingers from damaged screens Pinched fingers Injury from loose top plate Wrist and a rm stra ins Use caution when raising a nd lowering the sound enclosure lid. Keep hands, head and rest of body out of line of fire. Inspect screens for damage before using. Replace da maged screens, or screens that do not fit correctly. Avoid placing fingers in potential pinch points (between the screens and the screen holder) Adjust height of bottom holder to allow for proper fit of the top plate. Use proper tool for separating screens. nw_lab_jsha-2.doc Pg. 20 of 27

21 JSA No.: Date written: Date reviewed: 02/05/2008 Task: SiO 2 Analysis Approval signature: Approval signature: 1 Dispensing strong mineral acids (Nitric / HF) from a uto dispenser Chemical burns from splashback from dispenser, and spattering (Calciu m glu con ate sh ou ld be close at h an d). Fume hood MUST be on. Wear required PPE* Point dispenser away from you while dispensing, and ma ke sure tip is on side of vessel. Inspect and clean dirty and faulty dispenser. Be aware of remaining droplets on dispenser. 2 Microwave digestion of samples Membrane ruptures, releasing acid mist and making vessel projectile, noxious fumes Fume hood MUST be on. Always digest samples on turntable. Inspect rupture membranes before each use. 3 Ha ndling hot vessels out of microwave 4 Transfer of digested sample from digestion vessel to flask Thermal burns Acid and thermal burns from samples Use turnta ble to hold samples; it stays cooler than digestion vessels. Fume hood MUST be on. Wear required PPE* Use caution in transferal. Make sure 5% boric acid is in flask. nw_lab_jsha-2.doc Pg. 21 of 27

22 4. * Personal Protective Equipment: Apron, disposable sleeves, disposable gloves and fa ce shield 5. nw_lab_jsha-2.doc Pg. 22 of 27

23 Area: Quality Control Laboratory Prepared by: David W. Averitt Prepared by: David W. Averitt Facility: New Wales Reviewed: Rey Marsella Reviewed: Rey Marsella JSA No.: Date written: 12/3/2008 Date reviewed: 12/5/08 Task: Sodium Fluoride/Sodium Fluoride Solution Handling Approval signature: Approval signature: 1 Transfer of sodium fluoride from reagent bottle to drying/storage container 2 Weighing sodium fluoride for solutions 3 Transfer weighed sodium fluoride to volumetric flask 4 Adding 1:1 hydrochloric acid to weighed sodium fluoride Skin/eye irritation, inhalation, ingestion Skin/eye irritation, inhalation, ingestion Skin/eye irritation, inhalation, ingestion Formation of toxic gas/inhalation of toxic gas Transfer carefully, avoiding dust formation and/or skin/eye contact. Wear disposable latex gloves. Use due caution, avoiding dust formation. Keep dried sodium fluoride container tightly sealed when not in use. Use due caution, avoiding sodium fluoride dust. Add D.I. water to flask and dissolve sodium fluoride prior to adding hydrochloric acid under the fume hood. Wear disposable latex gloves. 5 Mixing sodium fluoride standards Skin/eye irritation Mix with stir bar/stir plate, not by inverting volumetric flask. 6 Transferring sodium fluoride standards to Nalgene bottles Skin/eye irritation Use due caution. Wear disposable latex gloves. 7 Pipetting sodium fluoride standards Skin/eye irritation Use due caution. Avoid skin/eye contact with solution. nw_lab_jsha-2.doc Pg. 23 of 27

24 8 Disposal of sodium fluoride/sodium citrate solutions Skin/eye irritation Use caution to avoid contact with skin/eyes. Flush down lab sink with copious amount of water. Rinse disposable beakers (specimen cups) with water prior to disposal. 9 Steps 1-8 Skin/eye irritation, inhalation, ingestion If skin contact, flush with water for 15 minutes. If eye contact, flush with water for 30 minutes. In any case of coming in contact with sodium fluoride, or a sodium fluoride solution, notify supervisor and get medical attention immediately. nw_lab_jsha-2.doc Pg. 24 of 27

25 JSA No.: Date written: Date reviewed: 01/25/2008 Task: Sulfuric Acid Sample Handling and Analysis Approval signature: Approval signature: 1 Picking up and returning sulfuric acid samples from the plant Sulfuric acid on the outside of bottles Use of unsafe containers Use of unsafe carrier Wear disposable gloves when handling the samples. The samples must be contained in Nalgene 4 oz / 125 ml Teflon (FFP) bottles. Do not pick up sulfuric samples that are not in the specified bottles. Use only approved cradles and carriers for transporting samples. 2 Weighing sulfuric acid samples Potential for spilling, splashing, or flinging sulfuric acid, causing acid burns Do not remove the acid bottles from the carriers. By keeping the bottles in the carrier at all times, they cannot spill outside of the carrier. Wear the required PPE: disposable gloves, arm protection (sleeves), lab apron or lab coat and face shield. Use only clean and dry disposable pipets. Do not pass pipet with sulfuric acid in it nw_lab_jsha-2.doc Pg. 25 of 27

26 3 % H2SO4 Titration Clamping sample cup onto Mettler Autotitrator arm 4 % H2SO4 Titration Refilling sodium hydroxide container 5 Fe ppm Hach Method Ferrozine reagent addition Spill dilute acid solution Chemical burns Reagent is harmful if absorbed through the skin. See MSDS. across any part of your body. Use caution to not have the pipet fling any acid from the tip. Rinse used pipet with water when done and discard it. Always add acid to water (NEVER add water to acid) Use caution when clamping onto titration arm. If spilled, wipe up immediately. If spilled on skin, flush with copious amount of water. Keep gloves and sleeves, or lab coat, on while adding the ferrozine reagent. nw_lab_jsha-2.doc Pg. 26 of 27

27 JSA No.: Date written: Date reviewed: 02/05/2008 Task: Suspended Solids Gooch Crucibles Handling Approval signature: Approval signature: 13 Placing or removing suspended solids crucibles on the manifold Cracked crucibles can break and cause hand injury Excessive force can cause crucible to break Inspect all crucibles prior to use. Discard immediately any that are cracked. When placing crucibles on the manifold, use gentle (but firm) pressure. A slight twist can help achieve a secure fit. Before removing crucibles from the manifold, release the vacuum on the crucible. Turn off the vacuum and remove a rubber stopper from a position not being used, or open the drain valve. Kevlar gloves are available, but they are not required nw_lab_jsha-2.doc Pg. 27 of 27