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

More documents

Recommendations

Info

4. Unstable chemicalsMany chemicals (most notably ethers such as THF, dioxane, diethyl andisopropyl ether) are susceptible to decomposition resulting in explosiveproducts. Ethers, liquid paraffins, and olefins form peroxides on exposure toair and light. Since most of these products have been packaged in an airatmosphere, peroxides can form even if the containers have not beenopened.• Discard unopened containers of ethers after one year;• Discard containers of ethers within six months of opening;• Never handle ethers beyond their expiry dates; contact your localwaste disposal coordinator to arrange to have the material stabilisedand removed.The following are common examples of compounds prone to peroxideformation:• Cyclohexene• Dicyclopentadien• Diethyl ether (ether)• Dimethyl ether• Dioxane• Isopropyl ether• Tetrahydrofuran (THF)The label and MSDS will also indicate if a chemical is unstable.5. Explosive chemicalsMany chemicals are susceptible to rapid decomposition or explosion whensubjected to forces such as being struck, vibrated, agitated or heated.Some become increasingly shock sensitive with age. Picric acid becomesshock sensitive and explosive if it dries out.• Refer to the label and the MSDS to determine if a chemical isexplosive;• Write the dates received and opened on all containers of explosive orshock-sensitive chemicals;• Inspect all such containers every month;84
• Keep picric acid solutions wet i.e. 30% or more water;• Discard opened containers after six months and closed containersafter one year, unless the material contains stabilisers;• Wear appropriate PPE and perform experiments behind a face shield;• Work with small quantities.The following are atomic groupings that are associated with the possibilityof explosion: acetylide; amine oxide; azide chlorate; diazo; diazonium; fulminate N-haloamine; hypohalite hydroperoxide; nitrate; nitrite; nitroso; nitro; ozonide; perchlorate; peroxide; picrateThe following are common examples of materials known to beshock-sensitive and explosive: ammonium nitrate; ammonium perchlorate; copper acetylide; dinitrotoluene; fulminate of mercury; lead azide; nitroglycerine; picric acid (when dry); trinitrotoluene.6. Chemical storage cabinetsFlammable chemicals should be stored inside flammable liquid storagecabinets. Only those flammables in use for the day should be outside thecabinet. Guidelines for cabinet use include:• Use authority-approved flammable liquid storage cabinets;• Keep cabinet doors of the cabinet closed and latched;• Do not store other materials in these cabinets.85
Page 1:
Guide to the safe handling ofsolven
Page 4 and 5:
Sabita DVD SeriesDVD100DVD200DVD300
Page 6 and 7:
CONTENTS1. Introduction2. Solvent s
Page 8 and 9:
• The use of High Performance Liq
Page 10 and 11:
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 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: Table 3. Suggested segregation for
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
show all

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

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?