The MSDS will be explained, with the various categories of information pointed out and interpretations presented. Institutional policies regarding laboratory activity will be reviewed, and emergency procedures regarding accidental exposure to hazardous materials or medical emergencies will be presented. All staff, including faculty, are expected to participate in this training. All participants will sign, date, and list their social security numbers in a register which will be kept on file to document their participation. After the initial presentations to the existing staff, opportunities for training sessions will be offered during the first two weeks of each Fall and Spring semester. The chairperson of the Science Division Safety Committee, or his/her designate, will be responsible for scheduling, planning, and conducting these training sessions.
1. On-site storage. Detailed storage regulations requiring a special permit take effect after on-site storage of acutely hazardous waste exceeds 1.0 Kg or if the hazardous waste exceeds 1000 Kg per month. Since the accumulation within the Science Division lies well below these quantities, the special provisions do not apply. Regulations allow small quantity generators to keep 1000 Kg of waste for up to 180 days without a special permit. The amount of hazardous waste generated by the Science Division varies, but is not expected to exceed 250 Kg per year. The amount generated by the remainder of the campus is not known, but should be quantified by some level of administration to ensure compliance with the applicable regulations since they are enforced on an institution wide basis.
Storage of these hazardous chemicals should be in heavy duty plastic containers or metal safety cans (to eliminate the possibility of spills due to breakage of glass containers), with the size of the container depending on the volume of waste generated. The waste should be segregated into the following categories:
2. Transportation of hazardous waste. The generator of hazardous waste is responsible for tracking the waste until it reaches the ultimate disposal site. An EPA license is required to transport hazardous waste, and the shipping manifests issued by the licensed transporter must be kept in perpetuity by the generator. Since the disposal site utilized by Calvin College (see below) is also a licensed transporter, a single manifest is issued and must be retained in perpetuity.
3. Disposal of hazardous waste. The disposal service utilized by Calvin College is:
Drug & Laboratory Disposal, Inc.
P.O. Box 148
331 Broad Street
Plainwell, MI 49080 (616)685-9824
Since the company provides service as both transporter and disposal facility, only one manifest is required. Drug & Laboratory Disposal, Inc. has EPA licenses for both transporting (ID# MID092947928) and disposal (ID# MID059695452). Most of the waste materials are incinerated by Drug & Laboratory Disposal using environmentally sound methods and equipment. To arrange for disposal, a list of types and volumes of hazardous materials must be submitted in writing to the disposal company, and the company will schedule a pickup. The materials must be in disposable containers, or the company will supply containers and transfer the contents of our storage containers to theirs, charging a flat rate charge for the time required for the transfer. The company must be notified in advance of the volume of containers needed to insure that adequate containers are available for the transfer. All hazardous materials are to be disposed of in this manner.
Preserved Biological materials are not classified as hazardous material, not even those preserved with a formalin solution. The formalin solution used for preserving laboratory specimens is only 1.8 parts of 37% formaldehyde per 100 parts of solution. Although formaldehyde is classified as a hazardous substance, the unregulated disposal is allowed because of the low concentration. Excess formalin solution packed with the animals can be washed down the sink, again because of the low concentration of formaldehyde. All material contaminated with human blood or other biological fluids, and all microbiological contaminated material must be autoclaved with a minimum of 121oC and 15 psi pressure for a minimum of 15 minutes. If the material does not contain a hazardous substance, it can then be disposed of in an unregulated manner.
While not deemed hazardous, the carcasses of animals used in laboratory investigation are classified as medical waste, and are now to be disposed of by using Valley City Refuse Disposal service (address below), calling them in advance to arrange each pickup.
Valley City Refuse Disposal, Inc.
1040 Market SW
Grand Rapids, MI 49503-4893
phone # 235-1500
The role of the instructor. The instructor in the teaching laboratory represents the college and is therefore responsible for the activity which occurs in the laboratory. The role of the instructor is further defined in the paragraphs below.
The instructor is responsible to teach good safety procedures and rules. The most effective method of teaching is often by example, so it is imperative that the instructors utilize model techniques and procedures in the laboratory - it is part of the job. Also, it should be made clear to the students that the topic of safety is not just an afterthought, or something which is mentioned at the beginning of the semester and then overlooked or forgotten. Besides good technique, the use of emergency equipment should be demonstrated, and the location of eyewash stations, fire extinguishers and blankets, and safety showers should be pointed out repeatedly. In order to further emphasize the importance of safety, it may be a good idea to include safety material pertaining to the experiments on any quizzes or laboratory reports required of the students. Good techniques learned early on in their laboratory experience will follow the students throughout their schooling and professional careers; bad techniques will do likewise.
The instructor must also enforce the rules which are applicable in each laboratory session. If the students feel that the instructor is ambivalent about the rules, shortcuts will be attempted and safety will be compromised. The activity of students left unattended for any period of time beyond short breaks remains the responsibility of the staff member in charge of the laboratory. There are legal precedents in which the instructor of a laboratory was held responsible for the injuries received by students involved in clearly unauthorized behavior while left unattended in a regularly scheduled laboratory period. It is therefore in the instructor's own best interests to maintain supervision of the lab. If lab assistants are utilized, they may be left in charge for part of the laboratory period, but the responsibility ultimately remains with the instructor.
It is the responsibility of the instructor to maintain the equipment and supplies in good operating order. Using faulty equipment which may present a safety hazard is strictly forbidden. The importance of completing a particular lab exercise on time pales in comparison to the injuries which may result from using faulty equipment.
Finally, it is also necessary for the instructor to utilize good judgement in teaching. Where specific safety procedures are not mandated or are not listed, it is up to the instructor to insist upon safe and reliable techniques in the performance of the laboratory exercise.
Laboratory safety requirements. In order to maintain a safe environment for the students in the laboratory, consideration should be given to various aspects of safety in the individual laboratory rooms. These issues are addressed in the paragraphs below.
Eyewash stations should be present in each laboratory in which caustic solutions or organic solvents are used. The use of the stations should be demonstrated by the instructor at the beginning of each semester. The eyewash bottles used in some laboratories should have their volumes checked on a monthly basis, and the contents should be removed and the bottles washed and refilled on a semiannual basis. The faucet mounted eyewash stations should be tested on a yearly basis.
Medical first aid kits should be available in each department. The contents of each kit should include at least the following:
In laboratory experiments in which hazardous solutions are used by anyone in the room, or in which potentially explosive materials are used, eyewear protection should be worn. The protection should be, minimally, safety glasses with side shields. Better protection is afforded by goggles with hooded ventilation or by face shields. Each exhaust fume hood shall have stored near it safety splash goggles and a protective apron for use by anyone who uses the hood. If undiluted hazardous chemicals are to be removed from the hood, suitable protective gear should be worn for the duration of the time the person is dealing with the material. For general laboratory work, no open-topped shoes are allowed, and the wearing of long pants is strongly encouraged.
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