Introducing the High Performance Low Flow Hood

Introducing the High Performance Low Flow Hood Incorporating Laminar Topography 1

Labaire, since 1981 has been specialising in Laboratory equipment and has developed into a company that is totally focused in the design, manufacture, supply and service of Laboratory, Hospital and Mortuary products. Our products are designed and continuously researched and developed to meet the market s requirements and to meet and set new standards. We never let the ever increasing and exacting demands of the hospital and laboratory market escape us. Our strength lies in our research and development team, which allows the sales and service teams, and agents alike, to carry out the professional supply, installation and commissioning of products and systems. The Labaire Laboratory equipment meets the task of directing air, removing microbial and particle matter from the air, creating inert environments, containing fumes, pressurising or vacuuming chambers, heating, cooling or humidifying air, and many other applications in order to protect the operator, product and environment. These include Laminar Flow Work Stations, Biological Safety Cabinets, Extraction and Portable Fume Cabinets (also known as Fume Hoods), and Down Flow Benches and then broaden out into custom designed pharmaceutical chambers and clean room or sterile environments or enclosures. The Mortuary range allows a turnkey project in fitting out a mortuary. The Mortuary Equipment includes a rapid transfer system that allows efficient procedures. Our contractual team provides a turnkey function catering for total project management from refrigerated rooms and enclosures to trolleys and furniture products, all facilitating procedures. The Hospital products include beds, furniture, trolleys, cabinetry, Laminar Flow Operating Theatres and theatre service panels. Our manufacturing facilities are diverse with the manufacture of product taking place in South Africa in the city of Gauteng. All our products meet the necessary standards set for the areas we supply with South African National Standards (SANS) in South Africa. About Labaire.page 2 General Purpose Fume Cabinets.page 3 Radio Isotope..page 5 Perchloric Fume Cabinet.page 6 Distillation & walkin Fume Cabinet..page 7 Fume extraction scrubbers..page 8 Dimensions for standard extraction cabinet page 10 LAMEX High Performance Cabinet...page15 Electronic control page 17 Dimensions for LAMEX.page 18 Variable Air Volume (VAV) system..page 19 Base Cupboard page 20 Internal Liners.page 21 Work surfaces.page 21 Ordering requirements page 22 2

General Purpose Cabinets The general purpose [GP] cabinets are designed to effectively handle a broad range of laboratory agents. Their attractive white and charcoal exterior compliment most laboratory furniture. The aerofoil design ensures uniform face velocities with sash fully open and minimizes turbulence while maximizing the recovery of disrupted airflow patterns. The front low level slot under the stainless steel aerofoil and internal baffle positioning provides for the efficient removal of all fumes including heavy gases. The moulded work surface and sides with radius corners and smooth crevice free surfaces, allows easy cleaning and no buildup of contaminants Airflow Design General purpose extraction fume cabinets are supplied in four different airflow designs: Bypass Auxiliary (very outdated) Labcontrol [see page 19 variable air volume (VAV)] Low Flow Energy conservation will decide your selection. See our systems design information for guidance on detailed criterion of integrated system design parameters. The specifications herein are for the individual cabinets. The laboratory furniture and other peripherals are separate to the cabinet requirements. Benefits of Moulded Composite Interior The interior of the GP cabinet is that of a moulded GRP composite Vinyl Ester, with an internal strengthening core and a high gloss, ice white, Vinyl Ester gel coat finish that provides: Durability for years of use with excellent resistance to discoloration and cracking. High level of chemical resistance to a wide range of acids, solvents and alkalis. The chemical resistance of our vinyl ester exceeds that of epoxy and stainless steel Labaire composite cabinets do not withstand high temperatures very well. The resistance to absorption does not allow for staining. The smooth surfaces and corners do not allow contaminants to collect. The ice white internal gel coat provides a high light intensity The efficient baffle positioning allows for reduced static pressure and therefore smaller blowers with reduced energy consumption and noise emission. Fire resistance for safe operation in accordance with local and international regulations 3

Features Moulded composite interior with integral work surface Aerodynamic aerofoil Front and side panels that remove for easy access to services Durable epoxy painted exterior Vertical tempered safety glass sliding sash Single counter balance for easy sash movement Factory fitted services with copper connectors External fluorescent light fittings Sash stop with override Sized to fit on standard laboratory workbenches Labaire offer a standard list of options, however we note that customized units are designed and manufactured on request. Accessories Drip cup and bottle trap Base cabinets or stand Factory fitted dry and wet service fixtures and plumbing accessories Infill panels with grille to seal off unit to ceiling Ducting, fans, attenuators and dampers Factory fitted electrical points two each side Addair EFC with laminate interior and stainless steel work surface with drip cup Standard Options Moulded epoxy or Phenolic resin work surface Stainless steel work surface Polypropylene manufactured work surface Explosion proof lights Horizontal sliding sashes Colour of unit and panels Stainless steel internal liners Epoxy coated steel internal liners Hard core laminate liners Polypropylene moulded interior Acrylic front sash Stainless steel exterior aerofoil fascia panels VAV with electronic module including sash and velocity sensor with audible & visual alarm AddAir System Technical Data MODEL Total Exhaust [m 3 /hr] and Static Pressure [Pa] Shipping.. 0,5m/s S.P. 0,7m/s S.P. 1m/s S.P. Weight [Kg] L4EFC 850 35 1 55 1700 90 150 L5EFC 1135 40 1590 60 2270 95 180 L6EFC 1420 45 1985 75 2835 115 220 L7EFC 1700 35 2380 55 3400 90 260 L8EFC 2000 40 2780 65 3970 100 300 Note: Volumes calculated with sliding sash 457mm open 4

Radioisotope The use of radio chemicals requires protection with internal liners of stainless steel. Available in all sizes, these cabinets are constructed with a fully welded interior of grade 304 or 316 stainless steel with a cup sink and supported on a coated hardboard base. The interior is free of cracks and crevices with radius corners for efficient decontamination procedures. The exterior is mild steel painted white with charcoal panels. The aerofoil design negates the necessity for increased air velocities. Provision is made for the installation of a HEPA and activated carbon filter to contain particulate material and chemical emissions. These may be housed in a safechange or conventional filter housing. Features and Benefits Welded stainless steel interior, polished to a smooth, seamless and safe work area. Vertical sliding tempered safety glass sash, protects the operator while providing excellent visibility Remotely controlled water and service fixtures are factory fitted. Electrical light and fan switches are factory installed and wired to the front control panel for easy access. Stainless steel work surface with cup sink permits containment and safe disposal of radioactive material. Durable epoxy coated exterior. Side and front access to services Aerofoil front panels External fluorescent lights Carbon Filter housing Accessories & Options Base cabinet or stand Infill panels to seal unit to ceiling Ducting, fan, attenuator and damper Factory fitted wet and dry services Safechange HEPA filter and housing Impregnated carbon filter and housing Pressure differential filter gauge Airflow monitor and alarm system. Stainless steel exterior, ducting and filter housings Technical Data MODEL Total Exhaust [m 3 /hr] and Static Pressure [Pa] Shipping.. 0,5m/s S.P. 0,7m/s S.P. 1m/s S.P. Weight [Kg] L4EFCS 850 35 1 55 1700 90 220 L5EFCS 1135 40 1590 60 2270 95 260 L6EFCS 1420 45 1985 75 2835 115 300 L7EFCS 1700 35 2380 55 3400 90 340 L8EFCS 2000 40 2780 65 3970 100 380 Note: Volumes calculated with sliding sash 457mm open Safe Change Housing 5

Perchloric Acid Extraction Fume Cabinet Perchloric Acid are designed to effectively handle procedures involving perchloric acid. The seamless welded 316 stainless steel interior has an integral drainage trough at the rear of the work area to accommodate the built in wash down system. This wash system may extend into the ductwork. All pipes and spray nozzles are manually controlled from the front panel. The mild steel exterior is white with charcoal panels. No water droplets fall onto the work surface. Features and Benefits Type 316 stainless steel interior with integral work surface and drainage trough Durable epoxy painted exterior External incandescent lights Vertical sliding tempered safety glass. Manual wash down system Threeinlet baffle system to ensure efficient scrubbing Rear sump to collect wash down water Electrical light and fan switches factory installed and wired to the front control panel for easy access Removable exterior panels provide easy access to electrical and mechanical services, sash weights. Aerofoil front panels Accessories and Options Automated wash down system Recirculation water pump for spray system Neutralising agent with sensors and alarm Timed Fresh Water wash down cycle Duct wash and spray nozzle Polycarbonate sliding front sash Remote factory fitted services Base cabinet or stand Infill panels to seal unit to ceiling Ducting, fan and dampers Stainless steel aerofoil fascia panels Technical Data MODEL Total Exhaust [m 3 /hr] and Static Pressure [Pa] Shipping.. 0,5m/s S.P. 0,7m/s S.P. 1m/s S.P. Weight [Kg] L4EFCP 850 35 1 55 1700 90 320 L5EFCP 1135 40 1590 60 2270 95 360 L6EFCP 1420 45 1985 75 2835 115 400 L7EFCP 1700 35 2380 55 3400 90 440 L8EFCP 2000 40 2780 65 3970 100 480 Note: Volumes calculated with sliding sash 457mm open 6

Distillation & Walkin Extraction Fume Cabinet Distillation and Walkin cabinets accommodate cumbersome laboratory procedures that require extra work area. Applications requiring large equipment or distillation racks need the extra height these cabinets provide. Often there is an extra depth requirement and this must be specified as a nonstandard variation. The exterior panels are shipped in single white and charcoal panels however the walkin interior has an upper and lower section. The airfoil design ensures a high protection factor with the doors fully open. The walkin cabinet has an additional extraction slot in the middle section. Features and Benefits Solid core laminated or GRP interior panels Bypass airflow design Aerodynamic airfoils Removable side access panels Vertical sliding tempered safety glass sash Factory fitted services Fluorescent light fittings Stainless steel work surface. Options and Accessories Horizontal sliding doors Horizontal and vertical (combination) sliding doors Polycarbonate sliding doors Distillation and support racks Sinks Additional wet or dry services Ducting, fan, damper and attenuator Infill panels Solid epoxy work surface Colour of unit and panels Stainless steel internal liners Stainless steel aerofoil fascia panels Technical Data Distillation Total Exhaust[m 3 /hr] and Static Pressure [Pa] Shipping.. Size 0,5m/s S.P. 0,7m/s S.P. 1m/s S.P. Weight [Kg] L5EFCD 2050 60 2860 75 4100 105 260 L6EFCD 2550 70 3575 95 5100 135 300 L7EFCD 3060 80 4290 115 6125 165 350 L8EFCD 3575 90 5000 135 7150 185 400 Walkin L5EFCW 2950 75 4130 90 5 115 350 L6EFCW 3685 85 5160 110 7370 145 425 L7EFCW 4425 95 6 130 8850 175 500 L8EFCW 5160 110 7225 150 10320 195 600 Note: Volumes calculated with sliding sash 457mm open 7

Fume Extraction Scrubbers Specifications for a fume scrubber When is scrubber required? 1. When emission concentrations to atmosphere exceed the statutory requirements set by government or local gazette, Health regulations requirements etc. 2. When emission concentrations to atmosphere are required to be reduced due to other factors. 2.1. Position of exhaust cowl near to another window, building, intake air system etc. 2.2. Toxic nature of emissions may cause third party damage claim 3. When the extraction system (duct, filters, fan etc) must be washed down to ensure no buildup of residue e.g. Perchloric acid. Most chemical plants and chemical laboratories generate toxic fumes and gases as part of their normal operational activities. The worldwide tendency of the public forcing their governments to enforce stricter control on the toxification of the atmosphere forces companies to remove the toxic fumes from the air streams they resubmit to the atmosphere. The equipment used to do this detoxification, are called chemical scrubbers. The contaminated air stream is passed through a system where the toxic elements present are chemically changed to an element that is readily removed from the air stream. The air stream released is thus cleaned to a level, which could be reintroduced to the atmosphere. This emitted air stream now complies with the statutory requirements for air pollution. The type and size of scrubber required for any particular application varies depending on many factors. External Scrubber outside of the extraction hood Scrubbers for The external scrubber is usually housed outside the building or certainly outside the confines of the extraction cabinet. The latter is far more efficient than the fore however costs a lot more. Your application will decide on which system to use. 1. Scrubbers 1.1. The scrubber is fitted with an optional venturi prescrubber or internal spray system as later described (Internal Scrubber). This prescrubber wets any solids particles very efficiently. The solids are then captured into the neutralizing liquid and knocked out of the air stream before it gets to the packed column. It has the added effect that some of the gaseous contaminants are also transformed, i.e. scrubbed before it hits the packed column. Recirculation tank in chemical storage stand underneath the extraction hood. 8

1.2. The packed column consists of one or more modular sections, which are fitted one on top of the other. Each of these effectively has a neutralizing medium redistribution bed. (This is a feature not normally found in onceoff manufactured units, since it is too expensive to manufacture these by hand.) The column is packed with Pall rings to ensure sufficient surface area for scrubbing. The column height is matched to the outlet stream requirements. 1.3. Circulation Pump The system is fitted with a circulation pump, with ample spare capacity. It is manufactured from a phenol resin with a mechanical seal, again for long maintenancefree operation. The motor is fitted as a direct drive. This pump is also used to pump the neutralizing medium into the scrubberholding tank. 1.4. Demister The outlet of the scrubber is fitted with an oversize demister unit to ensure no emission of the scrubber medium liquid is emitted to the atmosphere. 9

Internal Scrubber System The everincreasing control on the level of emissions to the atmosphere has resulted in scrubber systems being specified for extraction fume cabinets. This can include for external or internal scrubber systems. The external scrubber is usually designed for a large air volume and for more than one extraction fume cabinet. The internal fume scrubber is an efficient system that accommodates the needs of that fume cabinets emissions. The scrubber consists of a series of spray nozzles mounted in rows behind the baffles inside the work area and the duct work prior to the scrubber. The air then moves through a packed bed, which ensures that the large surface area scrubs up any fumes that have not been caught by the spray nozzles. A demister then removes the moisture from the airstream and is returned to the recirculating tank. The entire wash down system is based on a recirculation system with an automatic neutralizing agent and fresh water top and daily cleaning cycle. The wash down scrubbing action continues while the unit is in operation. Due to the amount of water involved in the system, careful attention has to be taken in order to ensure that no water droplets enter the work area. The work area has a trough at the back behind the baffles where the return water is collected and then drained to the recirculation tank The under structure houses the recirculation tank, pump valves, inline filter, plumbing, drainage and sensing equipment. There are certain precautionary measures that need to be incorporated to ensure that the system functions correctly. These include: Velocity of the air through the rear baffle section Velocity of air through the inline duct filters Setting of PH Build up a residue in the recirculation tank Return of water to the trough no splashing and efficient drainage to recirculation tank Efficient dosing system to neutralize recirculation water keeping the PH at 7 Plumbing maintenance each piece of equipment must be able to be removed. Leaks in plumbing system Overflow Volume and Head pressure of recirculation pump Positioning of actuated valves Automatic Fresh Water top up Inline duct filter maintenance The internal scrubber must obviously have acid resistant components that includes the pump, plumbing, inline filter, valves, spray nozzles, couplings, sensors, electrics and the enclosure itself. 10

Dimensions for a Standard Fume Hood EXHAUST AIR TBA OPTIONAL 400 750 50 150 B 150 625 A C A F E F 200 ØD ØD TYPE TYPE 1500 TYPE 1800 TYPE 2100 TYPE 2400 SIZE DIMENSIONS IN mm TYPE A B C ØD E 1500 1800 2100 2400 1500 1800 2100 2400 1500 1800 2100 600 750 240 240 1050 F 600 675 Dimensions of a Standard EFC 11

EXHAUST AIR TBA OPTIONAL 400 1800 1350 50 150 B 150 925 A C A F E F 250 ØD ØD TYPE TYPE 1500 TYPE 1800 TYPE 2100 TYPE 2400 SIZE DIMENSIONS IN mm TYPE A B C ØD E 1500 1800 2100 2400 1500 1800 2100 2400 1500 1800 2100 600 750 1050 240 240 1050 Dimensions of a Distillation EFC 12

EXHAUST AIR TBA OPTIONAL 400 2400 1950 50 150 B 150 A C A F E F 250 ØD ØD TYPE TYPE 1500 TYPE 1800 TYPE 2100 TYPE 2400 SIZE DIMENSIONS IN mm TYPE A B C ØD E 600 1500 1500 750 240 1800 1800 1500 240 2100 2100 1800 1050 2400 2400 2100 1050 Dimensions of a Walkin EFC 13

1000 EXHAUST AIR AUXILIARY AIR 500 775 750 50 150 B 150 625 A C A F E F 250 ØD ØD 1000 TYPE TYPE 1500 TYPE 1800 TYPE 2100 TYPE 2400 SIZE DIMENSIONS IN mm TYPE A B C ØD E 1500 1800 2100 2400 1500 1800 2100 2400 1500 1800 2100 600 750 1050 Dimensions of an Addair EFC 240 240 1050 14

The LAMEX Extraction Fume Cabinet range is designed to meet the revised ASHRAE 1101995 standard. This standard employs a set of rigorous tests to evaluate hood performance. It includes airflow visualization test, face velocity measurements and tracer gas containment. The face velocity test includes an inner and outer grid where velocities are taken at specific positions. Fume hoods are highly energyintensive, each one consuming more energy than two to three homes (this in a controlled environment). The LAMEX High Performance Low Flow Hood operates at a face velocity of 0.3m/s as against a Conventional Hood of 0.5m/s. This means a 40% saving and when equated to cost savings it is substantial. High Performance Low Flow Hood Incorporating Laminar Topography Extra Features and Benefits LAMEX 1 against Standard Hood Extra height of 200mm giving line of sight at 1800mm. 5º pitch of the face for comfortable ergonomics, aesthetics and keeps a better sash seal. Three baffles for complete purging of work area. Lower baffle has strategic openings positioned to ensure a Laminar intake with the sash is in the 200457mm range. Middle baffle has a thermal heat relief zone for immediate removal of hot rising air. Internal access panels allows for easy maintenance when cabinets external access panel are inaccessible. Exhaust cowl stretches across the entire length of the interior thus ensuring an even intake of air. Standard Features LAMEX range Stainless steel or composite interior with integral work surface. Aerodynamic top, side and bottom aerofoil for efficient inflow of air ensuring no eddies or turbulence. Front, side and internal panels that remove for easy access to services Durable epoxypolyethylene painted exterior baked to a high gloss finish. Vertical tempered safety glass sliding sash Single counter balance for easy sash movement Factory fitted services with copper connectors External fluorescent light fittings Sash stop with 457mm override External and Internal dimensions for a 1500mm wide Hood 15

Accessories Drip cup and bottle trap Base cabinets or stand Factory fitted dry and wet service fixtures and plumbing accessories Infill panels with grille to seal off unit to ceiling Ducting, fans, attenuators and dampers Factory fitted electrical points (two standard) Standard Options Manual Damper Audible and visual alarm with electronic display Polypropylene moulded interior. Moulded epoxy or Phenolic resin work surface Stainless steel work surface Polypropylene work surface Horizontal combination sliding sashes Colour of unit and panels Stainless steel or GRP internal liners Epoxy coated steel internal liners Resonate liners Acrylic front sash Motorised sash Stainless steel exterior aerofoil fascia panels Energy Efficiency The prime objective of the Fume Cabinet design is to ensure an energy efficient cabinet that is safe and comfortable to operate. The LAMEX cabinet is ergonomically designed with the 5 slope and achieves the energy savings through the Laminar Flow Topography. The table below compares Conventional Cabinets, VAV cabinets and the LAMEX Low Flow Cabinet. Working Operation Conventional Fume Cabinet 0.5m/s @ 457mm sash open position Variable Air Volume (VAV) Fume Cabinet 0.5m/s @ all sash positions with VAV control system Initial Cost Low High Medium Running cost Very High Medium (VAV maintenance) Low Ease of installation, commissioning & maintenance Easy Difficult Easy Technical Data MODEL Total Exhaust [m 3 /hr] and Static Pressure [Pa] Shipping.. 0,3m/s S.P. 0,5m/s S.P. 0.7m/s S.P. Weight [Kg] L4+EFC 444 15 740 35 1036 55 150 L5+EFC 592 20 987 40 1645 60 180 L6+EFC 740 25 1480 45 2467 75 220 L7+EFC 888 15 1777 35 2962 55 260 L8+EFC 1036 20 2073 40 2902 65 300 Note: Volumes calculated with sliding sash 457mm open Low Flow Fume Cabinet 0.3m/s @457mm sash opening open position with LAMEX 16

Electronic Control Panel All our fume cabinets can be fitted with an electronic control panel; however it is primarily required when a VAV system is installed. This is a multifunctional unit that allows the operator to set parameters. It has an override facility to manually start the exhaust fan and lighting. Features Noncontact detection (Sensor Detection) of sash height equates to no wear. Alarm indicates when sash is too high. This can be time delayed for loading. Monitoring of the inward velocity through the front opening. Operating modes for standard operation and special operation. Motion sensor to indicate when room is empty and inward velocity can be reduced. Control of a motorised sash. Adjustable controller behaviour in case of electrical failure (including voltage fluctuation). Fume Cabinet Control unit for status display, alarm suppression, sash monitoring, operating mode, sash open and close, lighting, local control and velocity flow status (0.3m/s) Liquid crystal display and function pad for Fume Cabinet and Room Control Room exhaust and supply air volume control. Plugandplay installation and plugin communication cable to Building Management System (BMS). Expansion module system to link to multiple systems to BMS. Control Panels and damper controller. Velocity Controller Motion sensor 17

1400 1225 150 B 150 640 C A C A F E F ǾD 175 ǾD TYPE L4+EFC TYPE L5+EFC TYPE L6+EFC TYPE L7+EFC TYPE L8+EFC SIZE TYPE A B C D E F L4+EFC 600 240 L5+EFC 1500 750 240 L6+EFC 1800 1500 305 L7+EFC 2100 1800 240 600 L8+EFC 2400 2100 240 1050 675 18

Varying Fume Hood & Room Exhaust Air In conjunction with Room Supply Air No matter what type of fume cabinet you may order a VAV device maybe fitted. It is important to understand that this device must be interfaced with the room supply air (air conditioned or not) and the exhaust air. The VAV system with the electronic control pad has great advantages as real time information linked to a BMS can be monitored. It also opens the opportunity to include motion sensing devices and electronic monitoring of sash height linked to an alarm system. On/off fan and lighting times can be set so exhaust fumes are not left running overnight. Override features for manual activation can be applied and very sophisticated set of parameters worked within. This sophistication is as good as the control measures that exist with the management infrastructure of the Building Management System. Features The VAV damper is motorised to open and close according to the sash height. While the exhaust air from the Fume Cabinet is increased or decreased so is the exhaust air from the room decreased or increased and the supply air similarly varied to maintain temperature and pressure inside the laboratory room. A VAV is very seldom installed without an integrated system as the resultant fluctuating parameters within the laboratory will render noncompliance. All components are chemical resistant within the VAV damper. The external controller has components mounted in a plastic casing. Please see our detailed brochure on the integrated VAV systems. There are many factors to consider that require interlinking with the mechanical and airconditioning contractor. Variable Air Volume Devices 19

Base Cabinetry Each fume cabinet is usually ordered with a base cupboard unless it is surface mounted or a walkin type. The cupboard maybe required to: Store acidic and base chemicals. Store solvents. House the recirculation tank and plumbing for a scrubber. Store glass ware, consumables etc. Strength We ensure that the cupboard is structurally built to withstand the load of the Fume Cabinet and the contents within. Features The cupboard is manufactured from electrogalvanised, phosphated and finished in baked epoxypolyester powder coated paint. This provides long term resistance to chemical, abrasion and weathering. Levelling feet to ensure stability. Ships unassembled with rapid and easy on site assembly. Easy site assembly Sized to suite Fume Cabinet ordered. Aesthetics & Ergonomics Concealed door hinges with soft close feature. Adjustable shelf to select height for upper and lower storage. Ventilation The cupboard uses the exhaust air from the fume cabinet to remove fumes and ensure no build up that could result in corrosion or explosion hazard with solvents. Accessories Electrical protection device during sudden voltage or current fluctuation. Ventilation kit to keep cupboard free of fume build up. Filler panels between ceiling and Fume Cabinet. Lined with polypropylene or polyethylene. Length of base cabinet according to size of fume hood. 20

Labaire Resonate Liners The Labaire Resonate is a composite material designed for use as an internal liner. It has excellent chemical resistance, structural strength and a smooth attractive finish that is easy to clean. The advantage of internal liners as against a moulded interior is that a separate work surface of a more durable compound can be installed. The work surface needs additional properties as it is subjected to more hazardous procedures. Acids Solvents Chemical Resistance of Labaire Resinate Internal Liner Chemicals Result Chemicals Result 99% Acetic Acid No effect Ammonium Hydroxide No effect 40% Hydrochloric acid No effect 10% Copper Sulphate No effect 40% Hydrofluoric acid No effect Alkalis 10% Iron Chloride No effect 50% Nitric acid 1 st Grade 65% KOH No effect 65% Nitric acid 2 nd Grade 40% Sodium Hydroxide No effect 85% Phosphoric acid No effect 15% Sodium Sulphide No effect 85% Sulphuric acid No effect 95% Sulphuric acid 1 st Grade Chemicals Result Copper Sulphate No effect Chemicals Result General 34% Hydrogen Peroxide No effect Reagents Alternative Liners Moulded GRP interior Stainless steel Polypropylene Glass (toughened) Electrogalvanised, phosphated and finished in baked epoxypolyester powder coated paint Type Acetone No effect Iodine No effect Carbon Tetrachloride No effect 50% Magnesium Sulphate No effect Chloroform No effect Urea No effect Ethyl Acetate No effect Ethyl Alcohol No effect Chemicals Result Ethyl Ether No effect Crystal Violet 40% Formaldehyde No effect Stains & 1% Gentian Violet Isopropyl Alcohol No effect Indicators Methylene Blue Naphthalene No effect Methyl Red Phenol No effect Methyl Orange Styrene No effect Toluene No effect Test Method: One drop of chemical placed & covered Xylene No effect for 24 hours. Results thereafter determined. 1 st Grade: Slight effect on colour. No change physical properties. 2 nd Grade: Clear effect on colour. No change physical properties. Note: Labaire Resonate may not be suitable increased percentage acid and heat loads. Phenolic Resin Work Surface Selection Epoxy Ceramic SS304 SS316 Polypropylene Chemical Resistance Better Better Best Good Better Best Temperature Resistance Good (110 C) Good (165 C) Best ( C) Better (300 C) Better (300 C) Poor (50 C) Cost Mid Price Mid Price Premium Low Price Mid Price Mid Price 21

Ordering a Labaire Fume Cabinet 1. Standard Fume Hood width and depth page 1114 Width: mm 1500mm 1800mm 2100mm 2400mm Depth mm 2. LAMEX Fume Hood width and depth page 18 Width: mm 1500mm 1800mm 2100mm 2400mm Depth mm 3. Fume Hood Internal Liner Material page 21 Resinate Resin SS304 Moulded GRP SS316 Glass Polypropylene 4. Sash Type page 22 Safety Glass Horizontal sliding Vertical sliding Motorised Combination sliding Acrylic 5. Electrical OutletsTwo outlets per cabinet with a maximum of four. 50Hz 60Hz 110V 220V 6. Service Fixtures One water and one gas supplied as a standard with a maximum of 6 more. Water Nitrogen Gas Oxygen Vacuum Compressed air DeIonised water Argon 7. Airflow Monitor page 16 8. Distillation Grids 9. Work Top..page 21 Phenolic Resin SS304 Epoxy SS316 Ceramic Polypropylene 10. Base Cabinet page 20 11. Electrical protection. 12. Base Cupboard Ventilation kit Labaire 57B Mount Street, Bryanston, Gauteng, RSA. Distributed by: Email: sales@labaire.co.za 22