Frequently Asked Questions

Biological Safety FAQ's

Who is required to attend bloodborne pathogen training?
Do I have to attend Bloodborne Pathogen Training if I have already attended a seminar offered by the VA?
Do Bench tops need to be decontaminated if bench coats are used?
Does lab equipment need to be decontaminated prior to disposal, repair or servicing?

Biomedical Waste FAQ's

Where can I get needleboxes?
My autoclave room in the medical school is out of the small and large cardboard boxes and bags. What should I do?
The aluminum cart in my autoclave room in the medical school is overflowing with waste. What should I do?
What do I use the red buckets for in the medical school?

Chemical Safety FAQ's

Who is required to attend Chemical Safety training?
Can chemical containers be stored on shelves above a bench?
Can chemicals of different hazard classes be stored within the same cabinet?
Can chemicals with high toxicity be used on the open bench?
Is there a limit on the quantity of chemicals which can be stored in the laboratory at one time?
Where can I obtain a Material Safety Data Sheet (MSDS)?
What are some alternative methods to chromic acid for cleaning glassware?

Hazardous Waste FAQ's

What do I do with empty chemical containers?
Where do I get waste tags?
Where do I get blue secondary containment trays for segregating hazardous waste containers?
What do I do with a broken thermometer?
Does EHS supply containers to collect hazardous waste?
I have chemicals that I can't use and they have never been opened and are not expired. Can anyone use them?

Radiation Safety FAQ's

Who is required to attend Radiation Safety training?
What are the commonly used radioactive materials at Yale?
Can I work with radiation producing equipment or radioactive material if I am pregnant?
How is radioactive material ordered at Yale?
How is radioactive material stored at Yale?
Is there a limit to the amount of radioactive material that can be stored in the laboratory at one time?
Can I take my radioactive material to another facility outside Yale University?
Who needs a radiation dose monitor (film badge)?
How do I get a badge?
What is ALARA?
What is an iodination?
Does lab equipment require decontamination prior to disposal, repair or servicing?
What types of xray equipment are present at Yale?

Yale University has medical, veterinary, and research x-ray equipment. The specific types of x-ray equipment may be designed to image human patients, animals, viruses, ceramics, and for a large number of other purposes.

Yale has medical xray equipment used under the direction of a physician for diagnostic purposes. For example, the medical x-ray equipment located at theYale Health Center at 55 Lock Street is surveyed and calibrated on a regular basis by physicists with the RSS. This equipment can only be operated by a trained person who is licensed with the State of CT Dept. of Environmental Protection.

All University owned x-ray equipment used for clinical reasons (i.e.. x-ray examinations on humans) is inspected by Radiation Safety to insure proper functioning. Shielding, personnel dosimetry requirements and safety procedures are handled by Radiation Safety. Only properly trained, certified personnel may expose humans using medical x-ray equipment.

Other x-ray equipment may include portables, C-arms, therapy units or diagnostic x-ray units. Use of such veterinary or cell irradiation x-ray equipment may also require shielding to protect persons in the surrounding area. Personnel dosimeters are generally required for personnel using veterinary x-ray equipment. Safe use of the equipment requires proper equipment use training. Safety procedures are supervised by Radiation Safety.

Radiation Safety should be notified as soon as any purchase of x-ray equipment is planned so that shielding and other safety requirements can be determined. X-ray equipment must be registered with the State of Connecticut Department of Environmental Protection. Any fees are the responsibility of the Principal Investigator.

For further information about State of Connecticut regulations and safe use of x-ray equipment, call Radiation Safety.

After appropriate training, persons at Yale may be permitted to use veterinary equipment for research projects that involve the x-raying of animals. These x-ray units are also surveyed for safety on a routine basis by members of the RSS.

X-ray diffraction units have very high dose rate x-ray beams. They can be used to image virus crystals and other materials. After appropriate, specific training, persons working at Yale may be allowed to use XRD units under the supervision of a Principal Investigator.

Hazards of Handling Machine Sources of X-Rays .

Radiation Waste FAQ's

Where can I find radioactive waste pickup forms?
Where can I get radioactive waste tags?
Should I tag the waste at the time I submit the pickup request?
How can I determine the size of my radioactive waste container?
What do you actually pickup when a radioactive waste request is submitted?
Do I have to segregate isotopes in my waste streams?
Can I submit a pickup request for a full 1 or 3 gallon sharps container?
What type of shielding should I use for the waste inside my lab?
What is the telphone number for waste inquiry?

Universal Waste FAQ's

How do I know if my lab equipment must be collected as used electronics under the Universal waste law?
I have regular alkaline batteries. Can't I just throw them in the trash?
I found a fluorescent light bulb in my office. What should I do with it?
What do I do with old toner cartridges?
Environmental Health & Safety
135 College Street, Suite 100
New Haven, CT 06510
Telephone: 203-785-3550
Fax: 203-785-7588