1. Common Laboratory Glassware and Volumetric Glassware Prepared By Michigan Department of Environmental Quality Operator Training and Certification Unit

2. GLASSWARE Griffin Beaker Erlenmeyer Flask Graduated Cylinder Graduated Pipet

3. GLASSWARE Griffin Beaker Approximate Graduations

4. GLASSWARE Erlenmeyer Flask Approximate Graduations

5. GLASSWARE Graduated Cylinder Used for Routine Volume Measurements of 25 mL or Greater

6. GLASSWARE Graduated Pipet Used for Routine Volume Measurements of 25 mL or Less Wide Tip Use When Solids in Sample

7. GLASSWARE Graduated Pipet NOT VOLUMETRIC Wide Tip Use When Solids in Sample

8. Volumetric Glassware Required for High Accuracy and Precision Required When Preparing or Using Standard Solutions

9. Volumetric Glassware Volumetric Transfer Pipet Accuracy and Precision Standard Solutions Buret Volumetric Flask

10. VOLUMETRIC GLASSWARE GLASSWARE Must Be Used Properly

11. BURET

12. To Deliver Calibration Temperature BURET

13. Completely Coat Inside Surface Rinse With Titrant

14. Not Clean Not Clean BeadsofLiquid

15. Rinse Three Times Fill to Above Top Graduation

16. Discharge All Air Bubbles

17. Drain Until Top of Liquid Is In Graduations

18. Curved Surface of Liquid MENISCUS

19. READER

20. X X O Proper Reading

21. Bottom of Meniscus to Top of Graduation

22. Increase Ten Graduations }

23. 9.64 24.16

24. Record Initial Reading Add Indicator Proper Grip

25. Mix Well Near Endpoint

26. Split Drops Transfer To Flask Rinse Into Reaction

27. At Endpoint Read Record Final Reading Final Reading – Initial Reading = Volume Delivered

28. Properly Dispose Excess Properly Clean Air Dry

29. Proper Storage

30. Volumetric Transfer Pipets

31. OneCalibration ToDeliver CalibrationTemperature VolumetricTransferPipetsVolumetricTransferPipets

32. Fill By Vacuum

33. Fill By Vacuum Pipet Bulb Rinse

34. Must Drain Evenly Not Clean Not Clean

35. Fill Above Calibration Wipe Tip Drain To Calibration Touch Container To Remove Drop

36. Allow To Drain Touch Tip To Flask Some Will Remain In Tip

37. Exception ETCHED Ring NOT Painted FOR BLOW-OUT

38. Properly Clean Air Dry

39. Using Volumetric Pipets 1. Rinse with solution to be pipeted (Observe for even draining) 2. Fill to above graduation 3. Wipe off outside of pipet 4. Drain to graduation ( bottom of meniscus to top of graduation) 5. Touch tip to waste vessel 6. Transfer by gravity (vertical - don’t force) 7. Touch tip to inside of receiving flask (clean pipet)

40. Volumetric Flasks Volumetric Flasks

41. TC To Contain NOT Intended To Deliver

42. To Prepare Solutions With Accurately Known Concentration

43. Fill Half And Mix Fill To Below Graduation Fill Drop-wise To Calibration

44. Invert Rapidly

45. Transfer To Reagent Bottle Properly Clean Air Dry

46. Volumetric Glassware Volumetric Transfer Pipet Accuracy and Precision Standard Solutions Buret Volumetric Flask

47. Common Laboratory Glassware and Volumetric Glassware Prepared By Michigan Department of Environmental Quality Operator Training and Certification Unit