The primary standard relating to laboratory fume hood exhaust is ANSI Z9.5 (1992). The entire standard can be ordered from The American Industrial Hygiene Association. Should you wish to familiarize yourself with the exhaust parameters of the standard, you may order an extract from Strobic Air.

Some ovens do not require exhaust hoods. Contact our Plan Review office at 916-874-6010 and speak directly to one of our plan review staff - please provide the make and model of the proposed equipment, if available, and we can check our files for approval notices. See similar questions...

You should keep the absolute minimum of material necessary to conduct your procedure in your fume hood. This will ensure that your fume hood can effectively capture and exhaust chemical fumes generated in the fume hood. The bottom line: Do not use a fume hood for chemical storage and remove excess equipment while it is being used. See similar questions...

A biosafety cabinet is a movable cabinet with supply and exhaust filters that typically exhausts 30% of the air it takes in. It filters and recirculates the rest. A few of these cabinets exhaust to the exterior of the building. This type cabinet offers personal safety protection from contaminants in the hood, as well as product protection. A laminar flow cabinet typically offers product protection only. See similar questions...

EHOS recertifies fume hoods annually. If there is a question or problem with your fume hood, you can report it to EHOS at extension 1-2663. EHOS will check it out and adjust it or have Facilities Operations Zone Maintenance work on it. See similar questions...

For maximum performance keep the duct straight and short. Use the shortest route with the fewest turns possible. 45° turns are better than 90° turns. Be sure to use an external roof or wall cap. If in doubt, consult a qualified designer/installer knowledgeable in ventilation or contact the Technical Support Group. See similar questions...

No. You should never exhaust air into spaces within walls, ceilings, attics, crawl spaces or garages. The humidity and grease collect in the space. Do not install in-line or external fans to boost a hood that has its own power unit. In general, attempting that type of "boost" will not be effective. See similar questions...

No. An architect should seal only drawings that have been prepared by themselves or under their direct supervision. Reviewing and sealing the work of others does not comply with the seal law. In most cases, the sealing of exhaust hood drawings is considered the practice of engineering and may be a violation of the engineering laws. See similar questions...

The Laboratory's normal business hours are Monday through Friday, 8:00 a.m. to 5:00 p.m. The Laboratory has recently adopted a new work schedule for all full-time employees. Over a two week period, the regular work schedule for Laboratory employees, referred to as a 9/80 schedule, will be either Schedule A or B as described in the Administrative Manual. Students must be in pay status one full pay period prior to choosing schedule A or B. See similar questions...

The standard covers animal blood only for those animals purposely infected with HIV or HBV. Although the standard does not apply to animal blood unless the animal has been purposely infected with HIV or HBV, persons handling animals or animal blood should follow general precautions as recommended by the Centers for Disease Control/National Institutes of Health Publication, Biosafety in Microbiological and Biomedical Laboratories (Publication No. 88-8395). See similar questions...

Virus culture. Laboratories are strongly encouraged to perform cell culture isolation of mumps from buccal/oral swabs specimens. Primary monkey kidney cells and Vero cells have been used successfully. Detection of mumps in culture can be done using immunofluorescent antibody staining or standard RT-PCR. UPDATED Jan 5 See similar questions...

The "Classic" 427SC had competition pipes under the doors. Being real race cars, the finish was not particularly important, and they were typically painted with a simple high temperature paint - usually white (see the top picture), sometimes black. No gloss, and the paint didn't stand up very well. On the other hand, a simple spray can would rejuvenate the pipes. Some people, wanting a more durable finish, have there pipes ceramic coated. Central CT Coatings does ours. See similar questions...

an unblocked hat shape looking like an upside down bucket, used for deeper crown and narrow brim styles See similar questions...

Silica fume is a by-product resulting from the reduction of high purity quartz with coal in an electric arc furnace in the manufacture of ferro silicon and silicon metal. Silica fume, which has a high content of amorphous (uncrystallized) silicon dioxide and consists of very fine spherical particles, is collected by filtering gases escaping from the electric arc furnaces. See similar questions...

Yes, it is very important to allow steam to escape for 10 minutes before closing the valve, or placing the weight on the vent. If the canner is not exhausted, the inside temperature may not correspond to the pressure on the gauge. See similar questions...

The general concensus is that aftermarket exhaust systems will show little (if any) performance increase on the dyno. The advantages of aftermarket systems are reduced weight, increased ground clearance and an improved exhaust note. See similar questions...

Once you feel you have exhausted all avenues of appeal, you may want to consider other options for MRgFUS treatment. Under some health plans, there are legal remedies available under state, federal, Medicare, or ERISA regulations. For those who seek treatment outside of continued appeals or legal remedy, patient self-pay options may be a viable consideration. The majority of MRgFUS provider sites offer Self-Pay programs for patients desiring treatment. See similar questions...

It's a fact... hazardous fumes in the working environment result in increased absenteeism, employee turnover, worker's compensation claims and lost productivity. Medical research has confirmed an increased incidence of occupational asthma, chronic bronchitis, allergic reactions, contact dermatitis and other health related effects associated with exposure to flux fumes. See similar questions...

Very helpful, though perhaps not in the way most people would think. There is no specific laboratory test for Alzheimer's disease. However, laboratory tests can help rule out other causes of dementia, and if other dementias are discovered, guide treatment in the right direction. For example, blood tests may show high blood sugar or high blood lipids (cholesterol) and a brain scan may show evidence of a stroke. See similar questions...

deCODE AF? is a reference laboratory test, which means that a sample is sent to our laboratory for analysis. The test itself is not performed in a doctor's office.Back to top of page See similar questions...