Guide to the safe handling of solvents in a bituminous ... - Aapaq.org

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• Use only CO 2 , halon, or dry chemical fire extinguishers for electricalfires.9.2 High pressure and vacuum workPressure differences between equipment and the atmosphere cause manylaboratory accidents. Glass vessels under vacuum or pressure can implodeor explode, resulting in cuts from projectiles and splashes to the skin andeyes. Glass can rupture even under small pressure differences. Rapidtemperature changes can lead to pressure differences, as can carrying outchemical reactions inside sealed containers.The hazards associated with pressure work can be reduced by:• checking for flaws such as cracks, scratches and etching marksbefore using vacuum apparatus;• using vessels specifically designed for vacuum work. Thin-walled orround-bottomed flasks larger than 1l should never be evacuated;• assembling vacuum apparatus so as to avoid strain. Heavy apparatusshould be supported from below as well as by the neck;• taping glass vacuum apparatus to minimise projectiles due toimplosion;• using adequate shielding when conducting pressure and vacuumoperations;• allowing pressure to return to atmospheric before opening vacuumdesiccators or after removal of a sample container from cryogenics;• wearing eye and face protection when handling vacuum or pressureapparatus.9.3 Repetitive work and ergonomicsErgonomics is concerned with how the workplace “fits” the worker.Performing certain work tasks without regard for ergonomic principles canresult in:• fatigue;• repetitive motion injuries;• strains, aches and injuries from biomechanical stresses;• eyestrain from video display terminals (VDTs);• decreased morale.62
Factors that can increase the risk of musculoskeletal injury are:• awkward positions or movements;• repetitive movements;• application of force.In a laboratory setting, look for the following when addressing ergonomicconcerns:• Laboratory bench and workbench heights are suitable for allpersonnel;• Laboratory chairs are on wheels or castors, are sturdy (5-legged), andare adjustable (seat height, angle, backrest height);• VDTs are positioned at or slightly below eye level, and are positionedso as to avoid glare from lights or windows;• Computer keyboards and pointing devices are positioned so thatwrists are kept in a neutral position and forearms are horizontal;• Colour, lettering size and contrast of equipment display monitors areoptimised to minimise eye strain;• Work station design does not necessitate excessive bending,reaching, stretching or twisting;• Vibration-producing equipment, such as vortex mixers and pump-typepipettes are not used for extended periods of time;• Buttons and knobs on equipment are accessible and of a good size;• Heavy items are not carried or handled;• Laboratory workers are using proper techniques when lifting ormoving materials;• Indoor air quality parameters, such as temperature, humidity and airsupply are comfortable;• Floors are slip-resistant;• Noise levels are not excessive.9.4 Glassware safety• Use a dustpan and brush, not your hands, to pick up broken glass;• Discard broken glass in a rigid container separate from regulargarbage and label it appropriately (see Hazardous WasteManagement, page 55 - 56);63
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Guide to the safe handling ofsolven
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Sabita DVD SeriesDVD100DVD200DVD300
Page 6 and 7:
CONTENTS1. Introduction2. Solvent s
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• The use of High Performance Liq
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2. Solvent specific test methods2.1
Page 12 and 13: • A mass balance requires a tempe
Page 14 and 15: *Jojoba oil (pronounced “ho-HO-ba
Page 16 and 17: properties of the recovered binder.
Page 18 and 19: Table 1. Coefficients of variationM
Page 20 and 21: • Temperature - Although binder h
Page 23 and 24: • Density - In general, a solvent
Page 25 and 26: 2.5. The determination of the softe
Page 27 and 28: 4. Evaluating the cost-effectivenes
Page 29 and 30: 6. Conclusions and recommendationsT
Page 31 and 32: absorptive limestone). In this way
Page 33 and 34: 13. Peterson, GD, Davison, RR, Glov
Page 35 and 36: in a location close to where the pr
Page 37 and 38: product identifier (product name);
Page 39 and 40: eye wash bottles and safety showers
Page 41 and 42: • reaction to naturally-occurring
Page 43 and 44: consulting the MSDS for the product
Page 45 and 46: those which could compromise an ind
Page 47 and 48: • Reactive chemicals May be sensi
Page 49 and 50: The following guidelines should be
Page 51 and 52: mercury air concentrations. If a la
Page 53 and 54: Be prepared to repeat the process i
Page 55 and 56: Leaking regulators, cylinder valves
Page 57 and 58: Peroxide-forming (e.g. ether) and e
Page 59 and 60: • Direct connections: Direct conn
Page 61: This guide is available on the UK H
Page 65 and 66: containers that may be contaminated
Page 67 and 68: Record each run in a logbook: keep
Page 69 and 70: • Gas chromatographs (GC): Gas ch
Page 71 and 72: Locate and know how to test and ope
Page 73 and 74: Do not remove a dressing that has b
Page 75 and 76: As soon as the flames are extinguis
Page 77 and 78: Appendix B - Recommendations for so
Page 79 and 80: • All packages in storage should
Page 81 and 82: Table 2.Examples of incompatible co
Page 83 and 84: Table 3. Suggested segregation for
Page 85 and 86: • Keep picric acid solutions wet
Page 87 and 88: peroxides. The radius shall be meas
Page 89 and 90: acute health effect - an effect tha
Page 91 and 92: 8 Corrosive; 9 Miscellaneous.ED50 (
Page 93 and 94: freezing point - the temperature at
Page 95 and 96: airborne substance, averaged over a
Page 97 and 98: teratogen - chemical which may caus
Page 99 and 100: • Many of the occupation exposure
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