2017 Updates

 

2017 Chemical Hygiene Plan Updates

PART IV. Additional Administrative Provisions

Section 2. SECURITY, PRIOR APPROVALS, INVENTORIES AND PROCUREMENT      

 

 

New wording

Page 49 Part 2 Access to all hazardous chemicals, including toxic and corrosive substances, should be restricted at all times. Specifically, good practice would dictate that these materials be stored in laboratories or storerooms that are kept locked at all times when laboratory personnel are not present. Also there are a few select highly toxic chemicals, requiring prior approval for purchase see #4 , which additional precautions are required such as keeping the materials under a second layer of security e.g. locked storage or gas cabinet, drawer, storeroom or other security measures. These chemicals are hydrogen cyanide, arsenic trioxide, chlorine, nitrous oxide, phosgene, potassium cyanide (analytical reagent and purified), sodium arsenate (analytical reagent), sodium cyanide (analytical reagent) seehttp://vpf.mit.edu/instructions-for-purchasing-hazardous-and-dangerous-items Contact the EHS Office to determine the appropriate controls.

 

Old wording

Page 49 Part 2.  Access to all hazardous chemicals, including toxic and corrosive substances should be restricted. Specifically, these materials should be stored in laboratories or storerooms that are kept locked when laboratory personnel are not present.

 

 

 

New wording

Page 49 Part 4. In the case of highly toxic chemicalsthe requisition must be signed by a member of the Institute community with the title Department Head, Laboratory Director, Professor, M.D., or Pharmacist see https://vpf.mit.edu/instructions-for-purchasing-hazardous-and-dangerous-itemsThese are hydrogen cyanide, arsenic trioxide, chlorine, nitrous oxide, phosgene, potassium cyanide (analytical reagent and purified), sodium arsenate (analytical reagent) and sodium cyanide (analytical reagent).Other unusually toxic or hazardous materials to consider for this level of security include………

 

Old wording

Page 49 Part 4.In the case of unusually toxic or hazardous materials, additional precautions are advisable, such as keeping the materials in locked storage cabinets or storerooms. Unusually toxic or hazardous materialsinclude substances with a high degree of acute and/or chronic toxicity and also may include explosives, certain highly reactive and/or corrosive substances. Unusually toxic chemicals are those that meet the OSHA definition of high acute toxicity (oral LD50 <50mg/kg, skin contact Ld50 < 200 mg/kg, or inhalation LC50 <200 ppm in air).

 

 

Support materials:

2017 chp_template 4-10-17.docx

2017 CHP Template updates 4-10-17.docx