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Areas containing flammable vapours or combustible dusts should beclassified according to hazard zone assessment. Once classified, it is theorganisation's responsibility to make sure the area is suitably equipped tohandle the respective danger. The relevant requirements concerningavoidance of ignition sources are recommended depending on whetherthese flammables are part of the normal/abnormal operations and whetherthe ignition source is controlled.Chemicals kept on shelves or racks shall be subject to the followingconditions:• Shelving and its fixtures shall be compatible with the goods stored, orshall be suitably protected from the goods;• The maximum holding capacity of the shelving systems shall not beexceeded;• Shelves used for chemical storage shall be restrained against lateralmovement and shall have lips on them to prevent containers beingpushed through to the other side.Chemical storage cabinets are required for the storage of dangerous goodsexceeding storage limit quantities. Chemicals kept in cabinets shall complywith the following requirements:• When storing flammable substances, the contents of the cabinet shallnot exceed 100l. If a 250l cabinet is used for the storage, it must bede-rated. This involves removing some of the shelving and placing asticker over the manufacturer's capacity rating, so that it is clear that100l is the maximum cabinet capacity;• All new installations of flammable solvent cabinets must bemechanically ventilated as per regulations. There is no requirementfor venting of cabinets containing other classes of dangerous goods;• The capacity of any chemical storage cabinet used in a laboratory tostore chemicals that are either flammable solids, spontaneouslycombustible, dangerous when wet, oxidising agents and/or organicperoxides is recommended not to exceed 50l;• Within a radius of 10m, measured from any one cabinet, the cabinetstorage capacity aggregated for all cabinets in that radius shall notexceed 250l or 250kg, including no more than 10l or 10kg each ofdangerous goods that are either flammable solids, spontaneouslycombustible, dangerous when wet, oxidising agents and/or organic86
peroxides. The radius shall be measured horizontally throughintervening walls, unless those walls are able to prevent the spreadingof a fire of the magnitude that could be expected to result from thecontents of the cabinet(s);• Cabinets shall not be located: One above the other; Where they can jeopardise emergency escape (minimum 3m); Under stairs or in corridors; The spill catchment/bund of cabinets must not be used to storechemicals; Where possible, store chemicals on spill trays within cupboards orcabinetsChemical storage rooms must be purpose built and comply with therequirements of regulations. This standard allows for the storage ofchemicals in quantities that exceed the quantities permitted to be kept onlaboratory shelves or in chemical storage cabinets in the laboratory.7. Flammable solvent storage limitsWhen a fire or explosion occurs in a laboratory, a major concern is toreduce the amount of fuel available to support the fire. Many solventscommonly used in laboratories are highly flammable, and should even asmall quantity become involved in the fire, it would have the capacity ofsignificantly increasing the probability of the fire spreading. Consult theOHS Act (Occupational Health and Safety Act, General Safety Regulations4: Use and storage of flammable liquids and; Hazardous ChemicalSubstances Regulations, 1995 14 .Labelling, packaging, transportation and storage: Place restrictions onthe maximum amounts of flammable liquids allowed to be stored,depending on class, in flammable material storage cabinets within a roomand defines the maximum size of individual containers for the variousclasses of flammables.8. ReferencesRefer to page 76.87
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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.
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Table 1. Coefficients of variationM
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• Temperature - Although binder h
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• Density - In general, a solvent
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2.5. The determination of the softe
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4. Evaluating the cost-effectivenes
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6. Conclusions and recommendationsT
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absorptive limestone). In this way
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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 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: • Keep picric acid solutions wet
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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