This standard operating procedure (SOP) is intended to provide general guidance on how to safely work with reproductive toxins. This SOP is generic in nature and only addresses safety issues specific to reproductive toxicity of chemicals. In some instances multiple SOPs may be applicable for a specific chemical (i.e., both the SOPs for flammables and reproductive toxins would apply to benzene). If you have questions concerning the applicability of any item listed in this procedure contact the Principal Investigator/Laboratory Supervisor of your laboratory or Environmental Health and Safety (x3-0448).

A reproductive toxin as defined by Cal/OSHA is a chemical that affect the reproductive capabilities including chromosomal damage (mutations) and effects on fetuses (teratogenesis). Under CA Proposition 65, the State of California maintains a list of known chemicals causing reproductive toxicity.

For the updated list, refer to: http://www.oehha.ca.gov/prop65/prop65_list/Newlist.html#files

Personnel planning to use reproductive toxins can get more health-related information and further consultation via: http://www.stanford.edu/dept/EHS/prod/mainrencon/occhealth/Reproductive/.

Although the specific SOPs will vary according to the material used, the following guidelines are generally applicable for projects involving reproductive toxins:

1. Use the smallest amount of chemical that is consistent with the requirements of the work to be performed.
2. Use containment devices (such as lab fume hoods or glove boxes) when: (i) volatilizing these substances, (ii) manipulating substances that may generate aerosols, and (iii) performing laboratory procedures that may result in uncontrolled release of the substance.
3. Use high efficiency particulate air (HEPA) filters, carbon filters, or scrubber systems with containment devices to protect effluent and vacuum lines, pumps, and the environment whenever feasible.
4. Use ventilated containment to weigh out solid chemicals. Alternatively, the tare method can be used to prevent inhalation of the chemical. While working in a laboratory hood, the chemical is added to a pre-weighed container. The container is then sealed and can be re-weighed outside of the hood. If chemical needs to be added or removed, this manipulation is carried out in the hood. In this manner, all open chemical handling is conducted in the laboratory hood.

Use a properly functioning lab fume hood when handling reproductive toxins.

If the process does not permit the handing of such materials in a fume hood, contact Environmental Health and Safety at x3-0448 for reviewing the adequacy of ventilation measures.

At minimum, safety glasses, lab coat, long pants, and closed toed shoes are to be worn when entering laboratories having hazardous chemicals. Additionally:

• When handling hazardous chemicals or contacting potentially contaminated surfaces, protective gloves are to be worn. For proper selection of glove material, review chemical MSDS and SU glove selection guidance.
• Goggles (not safety glasses) are appropriate for processes where splash or spray is foreseeable.
• For hazardous chemicals that are toxic via skin contact/ absorption, additional protective clothing (i.e., faceshield, apron, oversleeves) is appropriate where chemical contact with body/skin is foreseeable.

Ensure secondary containment and segregation of incompatible chemicals per guidance within the SU Chemical Hygiene Plan. Also, follow any substance-specific storage guidance provided in MSDS documentation.

Prompt response to chemical spills is critical to protect worker health & safety and to mitigate adverse affects to the environment. For further guidance, refer to "Response to Chemical Spills and Exposures".

Laboratory personnel who work with hazardous chemicals are to be provided the opportunity to receive medical attention/consultation when:

• A spill, leak, explosion or other occurrence results in a hazardous exposure (potential overexposure).
• Symptoms or signs of exposure to a hazardous chemical develop.

Reproductive toxins intended for disposal are considered hazardous wastes. For general guidance regarding waste disposal, refer to: http://www.stanford.edu/dept/EHS/prod/enviro/waste/index.html

• General Safety & Emergency Preparedness (EHS-4200)
• Chemical Safety for Laboratories (EHS-1900)
• Laboratory-specific training

Consult with PI regarding need for prior approval. Laboratory personnel shall seek and the PI must provide prior approval of any chemical usage involving the following list of restricted chemicals.

Personnel: Immediately after working with reproductive toxins, remove gloves and wash hands and arms with soap and water.

Area: Decontamination procedures vary depending on the material being handled. The toxicity of some materials can be neutralized with other reagents. All surfaces should be wiped with the appropriate cleaning agent following dispensing or handling. Waste materials generated should be treated as a hazardous waste.

Equipment: Decontaminate vacuum pumps or other contaminated equipment (glassware) before removing them from the designated area.

For use of reproductive toxins, a designated area shall be established where limited access, special procedures, knowledge, and work skills are required. A designated area can be the entire laboratory, a specific laboratory workbench, or a laboratory hood. Designated areas must be clearly marked with signs that identify the chemical hazard and include an appropriate warning; for example: WARNING! BENZENE WORK AREA – CARCINOGEN/ REPRODUCTIVE TOXIN.

• Upon leaving the designated area, remove any personal protective equipment worn and wash hands, forearms, face, and neck.
• After each use (or day), wipe down the immediate work area and equipment to prevent accumulation of chemical residue.
• At the end of each project, thoroughly decontaminate the designated area before resuming normal laboratory work in the area.