DGL AUST Pty Ltd If your screen looks
- Slides: 36
DGL (AUST) Pty Ltd If your screen looks like the picture (figure A) with the slide show visible (circled in red) on the left hand side of the screen you need to press the button F 5 now Figure A If your screen looks like the picture (figure B) click your left mouse button to continue. Figure B 12/07/2006 Rev B 1
T-1580 Respirators care, usage and filter selection This work has been produced by DGL (Aust) Pty Ltd This Learner’s Tool is about the skills and knowledge required to load vehicles at warehousing facilities of DGL (Aust) 6/9/2021 2
DGL (AUST) Pty Ltd Before you get started • • • It is important that you complete all sections in this learning tool as it has been designed so that You can abide by the procedures of our organization. You can apply what you have learnt in this package in your day to day activities • This Learning Tool is designed to be relevant only to DGL (Aust) Pty Ltd employees and only applied whilst employed with DGL (Aust) Pty Ltd • You may have already acquired knowledge in the area identified in this package as you may have completed some specialized training. Or you may have been working within the industry for some time. Should you identify any improvement opportunities in the information contained in this package or have difficulties completing the package please contact National Training and Compliance Manager DGL (Aust) Pty Ltd PO BOX 1594 EAGLE FARM QLD 4009 Ph 07 3868 1001 Fax 07 3868 1055 6/9/2021 3
DGL (AUST) Pty Ltd Introduction When working with chemicals care needs to be taken to ensure exposures minimized to the employee. When under taking a task Personal protective equipment PPE may be required as one of the controls to minimize the exposure to an employee. The information contained in this learning tool focuses on How a respirator works The selection of and usage of canisters Fitting of both a full face and half mask respirator Care and maintenance of respirators 6/9/2021 4
DGL (AUST) Pty Ltd How a respirator works 6/9/2021 5
DGL (AUST) Pty Ltd How a respirator works A respirator is a device that protects you from airborne hazards. It filters the air in the work area or supplies clean air from outside the work area. Some respirators have filters that sort out particles, gases, and vapours from the air. Respirator works by negative-pressure. When you inhale, your lungs and heart work to pull air through the filters. This makes a suction, or negative pressure, inside the mask. When you exhale a valve opens and is discharged. Air does not travel back through the filter 6/9/2021 6
DGL (AUST) Pty Ltd The selection of filters 6/9/2021 7
DGL (AUST) Pty Ltd The selection of filters Air-purifying respirators clean the air that is already in the work area by using filters. You must have the right filters or cartridges for the job. The type you use depends on the type of hazard you need to protect yourself against. There are many kinds of filters and cartridges. Filters and cartridges are sometimes colorcoded according to the hazard for which they are used. It is important to read the information on the filter/cartridge itself not just look at the color to see if you have the right one for the hazard 6/9/2021 8
DGL (AUST) Pty Ltd The selection of filters (Cont) What the letters on my filter cartridges mean (e. g. A 1 B 1 E 1) These letters and numbers refer to the filter type and class. A - Organics (solvents) B - Inorganics & acid gases (chlorines ect. ) E - SO 2 and other acid gases G - Agricultural chemicals (low vapour pressure) K - Ammonia Hg - Mercury 1 - low to medium absorption capacity 2 - medium absorption capacity 3 - high absorption capacity 6/9/2021 9
DGL (AUST) Pty Ltd The selection of filters (Cont) A canister is a reusable item however only when the history of the canister is known through a log of usage Never use a canister that has an unknown history Discard the canister if working time of the canister exceeds to 20 hrs 6/9/2021 10
DGL (AUST) Pty Ltd Inspection of respirators 6/9/2021 11
DGL (AUST) Pty Ltd Inspection of Respirators must be inspected before each use to ensure good operating condition. The face piece must be repaired or replaced if there are damaged or defective parts. The following inspection procedure is suggested. 1. Check face piece for cracks, tears and dirt. Be certain face piece, especially face seal area, is not distorted. 2. Examine inhalation valves for signs of distortion, cracking or tearing. 3. Make sure that head straps are intact and have good elasticity. 6/9/2021 12
DGL (AUST) Pty Ltd Inspection of Respirators 4. Examine all plastic parts for signs of cracking or fatiguing. Make sure filter gaskets or seal areas are in good condition. 5. Remove exhalation valve cover and examine exhalation valve and valve seat for signs of dirt, distortion, cracking or tearing. Replace exhalation valve cover. 6. Inspect lens of full face piece for any damage that may impair respirator performance or vision. 6/9/2021 13
DGL (AUST) Pty Ltd Fitting a full face respirator 6/9/2021 14
DGL (AUST) Pty Ltd Fitting a Full Face mask Fully loosen all straps. Pull hair back with one hand. Bring face piece up to face with other hand 6/9/2021 15
DGL (AUST) Pty Ltd Fitting a Full Face mask While holding the face piece in place, pull the straps over your head. 6/9/2021 16
DGL (AUST) Pty Ltd Fitting a Full Face mask Tighten the two bottom straps 6/9/2021 17
DGL (AUST) Pty Ltd Fitting a Full Face mask Tighten the two top straps 6/9/2021 18
DGL (AUST) Pty Ltd Fitting a Full Face mask Once your face mask is fitted check the fit by conducting a positive and negative pressure seal check Positive Pressure User Seal Check Place the palm of your hand over the exhalation valve cover and exhale gently. The face piece should bulge slightly. If air leaks between the face and the face seal of the respirator, reposition it And adjust the straps for a tighter seal. If you cannot achieve a proper seal, do not continue and see your supervisor 6/9/2021 19
DGL (AUST) Pty Ltd Fitting a Full Face mask Once your face mask is fitted check the fit by conducting a positive and negative pressure seal check Negative pressure Check Place the palms of your hands over the cartridges and inhale gently. The face piece should collapse slightly. If air leaks between the face and the face seal of the respirator, reposition it and adjust the straps for a tighter seal. . If you cannot achieve a proper seal, do not continue and see your supervisor 6/9/2021 20
DGL (AUST) Pty Ltd Fitting a half face respirator 6/9/2021 21
DGL (AUST) Pty Ltd Fitting a Half Face mask Place the respirator over your nose and mouth with bottom straps unfastened. 6/9/2021 22
DGL (AUST) Pty Ltd Fitting a Half Face mask Pull the top strap over your head, placing the head cradle on the crown of your head. 6/9/2021 23
DGL (AUST) Pty Ltd Fitting a Half Face mask Hook the bottom straps Together behind your neck. 6/9/2021 24
DGL (AUST) Pty Ltd Fitting a Half Face mask Adjust strap tension to achieve a secure fit 6/9/2021 25
DGL (AUST) Pty Ltd Fitting a Half Face mask Once your face mask is fitted check the fit by conducting a positive and negative pressure seal check Positive Pressure User Seal Check Place the palm of your hand over the exhalation valve cover and exhale gently. The face piece should bulge slightly. If air leaks between the face and the face seal of the respirator, reposition it And adjust the straps for a tighter seal. If you cannot achieve a proper seal, do not continue and see your supervisor 6/9/2021 26
DGL (AUST) Pty Ltd Fitting a Half Face mask Once your face mask is fitted check the fit by conducting a positive and negative pressure seal check Negative pressure Check Place the palms of your hands over the cartridges and inhale gently. The face piece should collapse slightly. If air leaks between the face and the face seal of the respirator, reposition it and adjust the straps for a tighter seal. . If you cannot achieve a proper seal, do not continue and see your supervisor 6/9/2021 27
DGL (AUST) Pty Ltd Care and maintenance of respirators 6/9/2021 28
DGL (AUST) Pty Ltd Care and maintenance Remove cartridges and filters. Clean face piece (excluding filters and cartridges) by immersing in warm cleaning solution, water temperature not to 49º C, and scrub with soft brush until clean. Add neutral detergent if necessary. Do not use cleaners containing lanolin or other oils. Disinfect face piece by soaking in a solution of quaternary ammonia disinfectant, or sodiumhypochloriteor household bleach in 7. 5 L of water, or other disinfectant. Rinse in fresh, warm water and air dry in a contamination free area Respirators need to be cleaned at the end of every shift 6/9/2021 29
DGL (AUST) Pty Ltd Test your Knowledge 6/9/2021 30
DGL (AUST) Pty Ltd Test your knowledge • Through the following slides you will be asked an number of questions to show that you have understood the content of this learning tool • Please record your answer on the training form F-260. • You will be required to submit the answers to the DGL HSEQ unit 6/9/2021 31
DGL (AUST) Pty Ltd Question 1 • All respiratory canisters are the same and can be used for all chemicals • a) True b) False • 6/9/2021 32
DGL (AUST) Pty Ltd Question 2 A canister is not to be used if the history of the canister is not known • • a) True b) False 6/9/2021 33
DGL (AUST) Pty Ltd Question 3 • When testing for fit the user needs to • a) do a positive pressure test b) do a negative pressure test c) both A & B • • 6/9/2021 34
DGL (AUST) Pty Ltd Question 4 • A respirator does not need to be cleaned if you are using it the next day • a) True b) False • 6/9/2021 35
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