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94local exhaust ventilation - involves the capture of pollutants at the source;Median Lethal Dose (MLD) - see LD5O;MEL (Maximum Exposure Limit) - the maximum permitted concentrationof a chemical to which a worker may be exposed over an extended periodof time. Typically, MELs are quoted in ppm for an 8-hour reference period,though shorter periods may be quoted for some materials. MELs are, inmany countries, enforceable by law;melting point - the temperature at which a solid material becomes a liquid;MSDS - a widely used abbreviation for a Material Safety Data Sheet, whichcontains details of the hazards associated with a chemical, and givesinformation on its safe use;mutagen - an agent that changes the hereditary genetic material which is apart of every living cell. Such a mutation is probably an early step in thesequence of events that ultimately leads to the development of cancer;NA Number - See "UN Number";NIOSH (National Institute for Occupational Safety and Health) - setsOELs and provides services in occupational health and safetyinvestigations in the USA. The NIOSH home page is athttp://www.cdc.gov/niosh/;nephrotoxin - a chemical which may cause kidney damage. Commonexamples include antimony compounds, dimethyl sulphoxide,dimethylformamide and tetrahydrofuran;neurotoxin - chemical whose primary action is on the CNS (CentralNervous System). Many neurotoxins, such as some mercury compounds,are highly toxic, and must only be used under carefully controlledconditions;nuisance material - material that can cause transient irritation ordiscomfort, but which has no long-term or systemic effects;OEL (Occupational Exposure Limit) - A (generally legally-enforcable) limiton the amount or concentration of a chemical to which workers may beexposed;Occupational exposure limits - control limits: OEL-CL (HazardousChemical Substances Regulations). An OEL-CL is the maximumconcentration of an airborne substance, averaged over a reference period,to which employees may be exposed by inhalation under anycircumstances, and is specified together with the appropriate referenceperiod in Table 1 of Annexure 1;Occupational exposure limit-recommended limit - OEL-RL (HazardousChemical Substances Reulations). An OEL-RL is the concentration of an
airborne substance, averaged over a reference period, at which, accordingto current knowledge, there is no evidence that it is likely to be injurious toemployees if they are exposed by inhalation, day after day, to thatconcentration;odour threshold - the lowest airborne concentration, usually in part permillion, of a vapour in air which can be detected by smell;OES - Occupational Exposure Standard oxidising material - gives upoxygen easily or can readily oxidise other materials;PEL (Permissible Exposure Limit) - a Time-Weighted Average (TWA) orabsolute value (usually prescribed by regulation) setting out the maximumpermitted exposure to a hazardous chemical (see "exposure limit");peroxidisable materials - materials that can form peroxides in storage,generally when in contact with the air. These peroxides present their mostserious risk when the peroxide-contaminated material is heated or distilled,but they may also be sensitive to mechanical shock. The quantity ofperoxides in a sample may be determined using a simple peroxide teststrip;pH - a measure of the acidity or basicity (alkalinity) of a material whendissolved in water;photoallergic contact dermatitis - a skin condition brought on byexposure to light following skin contact with certain types of chemicals,such as sulphonamides;pictographs - widely-used pictorial representations of the hazardspresented by chemicals;poison class A or B - classified by the DOT into two classes. Those inClass A are highly toxic materials which, even in very small quantities,present a hazard to life. Examples of such gases are cyanogen, phosgeneand hydrocyanic acid. Class B poisons, though less toxic, are presumed topresent a serious threat to health during transportation;polymer - a natural or man-made material formed by combining units,called monomers, into long chains;polymerisation - a process of forming a polymer by combining largenumbers of chemical units or monomers into long chains;PPB or ppb (Parts Per Billion) - used to specify the concentration (byvolume) of a gas or vapour at very low concentration, or a dissolvedmaterial at high dilution;PPM or ppm (Parts Per Million) - used to specify the concentration (byvolume) of a gas or vapour at low concentration, or a dissolved material athigh dilution;95
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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
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in a location close to where the pr
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product identifier (product name);
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eye wash bottles and safety showers
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• 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 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: freezing point - the temperature at
Page 97 and 98: teratogen - chemical which may caus
Page 99 and 100: • Many of the occupation exposure
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