Perchloric Acid Fume Hood
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Perchloric Acid Fume Hoods UniFlow Perchloric Acid fume hoods are engineered for the safe handling of perchloric acids in laboratory procedures. Perchloric Acid hoods come in 48”, 60”, & 72” widths and include a dedicated wash down and exhaust system. It is recommended to thoroughly wash down fume chamber and exhaust system after each use. Note: Perchloric Acid Hoods are for perchloric acid use only. UniFlow Superstructure constructed of either PVC or 316 stainless steel features exclusive unitized dual wall construction for superior chemical resistance, strength,and durability. Rear drain trough is integral to superstructure. Fume Chamber type 316 stainless steel fume or PVC fume chamber and bafe. Dedicated wash down with integral piping spray nozzles & remote control on right column. Access Panel removable to access ducting connections, wash down system, and electrical services from a single point electrical box,115V/60Hz AC operation. Energy efcient explosion proof light xture, with light switch on left column,all factory installed. PVC or Stainless Steel Work Surfaces integral PVC or 316 stainless steel work surface and drainage trough. Full 30” Viewing Height with 28.5” sash open- ing height for ease of access and viewing tall apparatus setup. Sash is 3/16 thick tempered safety glass, vertical moving with single point counterbalance, contoured sash handle for efcient air ow and ease of movement. Air Flow Monitor continuously monitors face velocity airow, analog or digital available. Meets ANSI and OSHA requirements. Optional equipment. OPTIONAL ACCESSORIES Refer to HEMCO’s PLAN-A-HOOD on page 9 to assist in the planning of your UNIFLOW fume hoods. Ducting & Wash Down Systems UniFlow Perchloric Acid Hood Cat. No. 12521, shown with optional accessories. Perchloric Acid Exhaust Blowers (see page 26) Fume Hood Face Velocity cfm Sash in full open position should be for setup of apparatus & maintenance service only. If opening is at 1/2 open at 120 fpm (feet per minute), face velocity at full open would be approximately 60 fpm. The recommended face velocity for perchloric acid fume hood efciency & safety should be 120 fpm. Lower face velocity may compromise user safety. Perchloric Acid Fume Hood Sash Management & Design Size hood Full open cfm Exhaust Blower 1/2 open cfm Exhaust Blower Airow Monitors (see page 37) Wash down control valve Plumbing and Electrical Services Factory installed according to your exact specications (see page 11) Base Cabinets and Worksurfaces (see page 10) HEMCO Corporation 711 S. Powell Road Independence, MO 64056

Perchloric Acid Fume Hoods UNIFLOW PERCHLORIC ACID FUME HOODS DESCRIPTIONS 1. Uniow Stainless Steel Perchloric Acid Laboratory Fume Hoods: Seamless type 316 stainless steel fume chamber with integral work surface and drainage trough, all coved corners with bafe and exhaust collar. Hood has built-in wash down system with spray nozzles and piping to front mounted control valve. Picture frame sash opening with counterbalanced clear tempered safety glass sash with chemical resistant PVC framing and track and aerodynamic sash lift. Explosion-proof light xture installed but not wired,115V/60Hz...