ࡱ> UWT f!bjbj++ {PAAmt t DDDDD$hhhPh Rpp4p r r r r r r ,K"$ D DD DDp p rI4 x[rJ \  0 & %%4 D4 (  %t :    Please retain this form within the department/section when completed. This assessment must be carried out by the relevant Department/Section Head (or their nominee) . This checklist will help identify hazards and enable subsequent Risk Assessments to be completed where hazards cannot be eliminated. [See Section 19.1 - 19.5]. See Section 18.22.0 COMPRESSED GAS CYLINDERS in Document 2 for requirements Room/Location: _________________ No. of employees Involved: _____________________ Nature of Work: ____________________________________________________________________________ Assessed By: _____________________________________________ Date: ____________________________ 1.0TRAINING AND INFORMATIONYesNoN/ARECOMMENDATIONS/ACTIONS1.1 1.2 1.3 1.4 1.5Have staff/students received basic training in the safe use and handling of compressed gases/gas cylinders? Are they aware of the range of hazards associated with compressed gases/gas cylinders? Are there written procedures for: handling and usage of compressed gases? emergencies? storage and disposal of gas cylinder? Are all cylinders identified by label in addition to colour code i.e. conforming to ISO 7225? Are there gas technical data and supplier safety sheets available for all gases used? 2.0GAS CYLINDERSYesNoN/ARECOMMENDATIONS/ACTIONS2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9Are they located and stored in a secure, well ventilated area, protected from weather, corrosion and heat sources? Are they stored securely in the upright position (not free standing)? Are fuel gases segregated from oxygen gas by a fire wall? Are cylinders of different gases (and empties) segregated from each other? Are empties (MT) clearly labelled before returned to store? Are plugs or cap nuts always in place for toxic/corrosive gases, in storage or even when not in use? Is there a policy to (a) prevent or minimise storage of cylinders in the laboratory and (b) prohibit storage of cylinders within the building? Are all cylinders securely fastened during use? Are all valves (in addition to regulators) closed on cylinders not in immediate use? 2.0GAS CYLINDERS (cont.)YesNoN/ARECOMMENDATIONS/ACTIONS2.10 2.11 2.12 2.13 2.14 2.15 2.16 2.17 2.18 2.19 2.20 2.21 2.22 2.23 2.24 2.25 2.26 2.27 2.28 2.29 Are all connections to apparatus via traps or checks and not direct? Are all connections secured? Where flow systems are used is the system free from glass tubes or vessels and rubber connections? Are all cylinders in use fitted with a regulator? Are regulators removed before cylinders are transferred from one work area to another or transported about the laboratory? Is the cylinder outlet clean and clear of dirt prior to assembling the regulator? Is the use of grease or jointing compounds prevented as lubricants for valves and fittings? Is the pressure regulating screw fully screwed prior to fitting pressure regulator? Are flashback arrestors fitted to fuel gases or oxygen systems? Are non-return valves fitted to prevent back feeding? Are automatic shut off/isolation values fitted to prevent low pressures occurring in cylinders? Are the following precautions taken to prevent back-feeding: ALWAYS close the supply cylinder when not in use. NEVER leave an empty cylinder connected to a process. NEVER use a cylinder as a receiver for waste gas, liquid or other materials. Are cylinders securely fastened during transit? Are cylinders only moved by trolley? If cylinders are used in different locations, is there a trolley available? Is correct eye protection equipment worn at all times when handling gases? If there is any problems with the valves, spindles or regulators, is the supplier contacted? Are all hoses, connections checked regularly and up to specification? Are the pressure regulations designed for the specific gas and pressure? Are cylinders used in laboratories kept away from heat sources?  2.0GAS CYLINDERS (contd.)YesNoN/ARECOMMENDATIONS/ACTIONS2.30 2.31 2.32 2.33 2.34 2.35 2.36 2.37 2.38 2.39 2.40 2.41 2.42 2.43 2.44 2.45 2.46 2.47 2.48If toxic or corrosive gases are required are (a) cylinders stored in ventilated areas (externally) or ventilated gas cylinder cabinets (ventilated direct to the open air via a scrubber) and (b) the gases used in fume cupboards? Are cylinders securely held both in use and while in stock? Are acetylene cylinders always kept vertical and all cylinders used in a vertical position? Are all hoses in good condition and securely fixed? Is the gas turned off at the cylinder rather than just the regulator when not in use? Are the correct regulators used for each cylinder? Do all gauge pointers return to zero when the pressure is released? Is a gas detection and alarm system provided where toxic or flammable gases are used? Are the gas detectors compatible with the chemicals in use in the immediate area, so that false positive alarms do not occur? Is the gas detection system linked to an automatic shut-off device on the gas supply? Are compressed gases located in external compounds and the gases piped directly to the point of use (not to common gas taps)? Will piped gas systems automatically: Shut down in a high flow situation? Switch over to a spare cylinder in a low contents situation and send a message to a central monitoring station? Are flammable gases segregated from oxygen/oxidisers in both storage and when piped? If gas cylinders reside in a building, are they located in fire rated ventilated gas cylinder cabinets? Is permanent passive ventilation provided in all areas where asphyxiant, toxic, corrosive or flammable gases are used? Are pipes containing flammable gases within a building, located in ventilated service ducts with no oxidisers or electrical cabling/devices? Is the use of compressed air for cleaning down equipment/surfaces prohibited? Are instantaneous connections, provided to compressed air lines, marked with appropriate warning signs? Are hazard-warning signs erected in all areas where compressed gas cylinders are used/stored.   DEPARTMENT SAFETY STATEMENT DOCUMENT NO.3: Hazard Identification and Risk Assessment SECTION 19.3.15 - Compressed Gases Checklist Rev.2 Date: Jan 06 PAGE  PAGE 1 of  NUMPAGES 3 AppSc\Doc3\Sect 19.3-15 DOCUMENT NO.3: Hazard Identification and Risk Assessment SECTION 19.3.15 - Compressed Gases Checklist (Cont.) 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