CHMM (IHMM) case studies
CHMM · Put your knowledge to work in context.
The Certified Hazardous Materials Manager (CHMM®) is a professional credential administered by the Institute of Hazardous Materials Management (IHMM), a not-for-profit organization founded in 1984. The CHMM was IHMM's first credential, with the first recipients receiving it on May 1, 1984. The CHMM case studies are 5 cases and about 4,769 words.
1Satellite Accumulation Area Walkthrough: 82 Gallons, No Dates, One Leaker
Ridgeline Fabrication is a large quantity generator (about 2,300 kg per month of listed and characteristic waste) in a 40-year-old building. The maintenance shop's satellite accumulation area is a curtained corner of the parts-washer room.
925 words, about 5 min2Alkaline Cleaner at pH 13.4: Non-Regulated or Class 8?
Buckeye Chemical Blending fills 55-gallon open-head steel drums with 'Alkaline Cleaner 2000,' a liquid the batch sheet describes as 6% potassium hydroxide, 3% surfactants, balance water. The QC lab recorded pH 13.4 and found no flash point by Pensky-Martens closed cup.
873 words, about 4 min3320 Pounds of Ammonia at a Facility Below the RMP Threshold
Northgate Cold Storage runs an anhydrous ammonia refrigeration system with a documented charge of 8,200 pounds, below the 10,000-pound OSHA PSM and EPA RMP thresholds. At 02:10 on a Sunday, a relief valve on the high-side receiver fails to reseat.
989 words, about 5 min4Thirty Gallons of 93% Sulfuric Acid Next to a Caustic Pallet
Calder Metal Finishing occupies a single-story building with 38 employees. The company's written emergency plan is an OSHA-style emergency action plan: pull the alarm, evacuate to the parking lot, call 911.
993 words, about 5 min5Used Oil Tank at 1,350 ppm Halogens and a 118 °F Flash Point
Tidewater Fleet Services maintains 220 tractors and runs an on-site used oil program. Used crankcase oil drains into a 1,000-gallon aboveground tank; a permitted oil recycler picks it up every six weeks and sends it to an energy-recovery burner.
989 words, about 5 min