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

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selecting and purchasing equipment with safety features thatminimise leaking; selecting and purchasing mixing apparatus with non-sparkingmotors; checking integrity of gaskets, caps and bottles before using.Discard damaged items; allowing aerosols to settle for at least one minute before openingcontainers; when using a sonicator, immersing the tip deeply enough into thesolution to avoid creation of aerosols; decontaminating exposed surfaces after use.• Ovens and hot plates: Laboratory ovens are useful for baking orcuring material, off-gassing, dehydrating samples and dryingglassware. However, care should be taken to: Select and purchase an oven whose design prevents contactbetween flammable vapours and heating elements orspark-producing components; Discontinue use of any oven whose backup thermostat, pilot lightor temperature controller has failed; Avoid heating toxic materials in an oven unless it is ventedoutdoors (via a canopy hood, for example); Never use laboratory ovens for preparation of food for humanconsumption; Glassware that has been rinsed with an organic solvent should berinsed with distilled water before it is placed in a drying oven.• Analytical equipment: The following instructions for safe use ofanalytical equipment are general guidelines; consult the users'manual for more detailed information on the specific hazards: Ensure that installation, modification and repairs of analyticalequipment are carried out by authorised service personnel; Read and understand the manufacturer’s instructions before usingthis equipment; Make sure that preventive maintenance procedures are performedas required; Do not attempt to defeat safety interlocks; Wear safety glasses and laboratory coats (and other appropriatePPE as specified) for all procedures.68
• Gas chromatographs (GC): Gas chromatography requires handlingcompressed gases (nitrogen, hydrogen, argon, helium), andflammable and toxic chemicals. Consult product MSDS before usingsuch hazardous products. Specific precautions for working with gaschromatographs include: Perform periodic visual inspections and pressure leak tests of thesampling systems, plumbing, fittings and valves; Follow the manufacturer’s instructions when installing columns.Glass or fused capillary columns are fragile: handle them withcare and wear safety glasses to protect eyes from flying particleswhile handling, cutting or installing capillary columns; Turn off and allow heated areas such as the oven, inlet anddetector, as well as connected hardware, to cool down beforetouching them; To avoid electrical shock, turn off the instrument and disconnectthe power cord at its receptacle whenever the access panel isremoved; Turn off the hydrogen gas supply at its source when changingcolumns or servicing the instrument; When using hydrogen as fuel (flame ionisation FID andnitrogen-phosphorus detectors NPD), ensure that a column or capis connected to the inlet fitting whenever hydrogen is supplied tothe instrument to avoid build-up of explosive hydrogen gas in theoven; Measure hydrogen gas and air separately when determining gasflow rates; Perform a radioactive leak test (wipe test) on electron capturedetectors (ECDs) at least every six months for sources of 50MBq(1,35 mCi) or greater; Ensure that the exhaust from ECDs is vented to the outside; When performing split sampling, connect the split vent to anexhaust ventilation system or appropriate chemical trap if toxicmaterials are analysed or hydrogen is used as the carrier gas; Use only helium or nitrogen gas, never hydrogen, to condition achemical trap.• High-pressure liquid chromatography (HPLC) equipment: HPLCprocedures may require handling of compressed gas (helium) andflammable and toxic chemicals. Familiarise yourself with the69
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Guide to the safe handling ofsolven
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Sabita DVD SeriesDVD100DVD200DVD300
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CONTENTS1. Introduction2. Solvent s
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• The use of High Performance Liq
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2. Solvent specific test methods2.1
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• A mass balance requires a tempe
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*Jojoba oil (pronounced “ho-HO-ba
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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 and 62: This guide is available on the UK H
Page 63 and 64: Factors that can increase the risk
Page 65 and 66: containers that may be contaminated
Page 67: Record each run in a logbook: keep
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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