4 4Methylenedianiline MDA Regulated areas v Entrances and

4, 4’Methylenedianiline (MDA)

Regulated areas v Entrances and accessways are posted with signs with the following legend: 1 a

Regulated areas v Only authorized persons may enter regulated areas v Tour regulated areas v Inform contract employers of regulated areas 1 b

Definitions v Action level v Permissible v Short-Term (STEL) exposure limit (PEL) Exposure Limit 1 c

Definitions v Engineering v Work practices v Visual v Air controls monitoring 1 d

Monitoring v Ongoing monitoring: • Contaminants at or above the action level, but below PEL (at least every 6 months) • Contaminants at or above the PEL (at least every 3 months) • Changes in personnel, processes, controls 1 e

Monitoring v Monitoring may be stopped under some conditions v Employees have a right to be notified of monitoring results within 15 working days 1 f

Monitoring v Company must develop and implement a written compliance plan to reduce exposure 1 g

Material safety data sheets (MSDSs) v Hazard communication program v Location of MSDSs 2 a

Material safety data sheets (MSDSs) v Labels on containers v Manufacturing/ importing MDA 2 b

Material safety data sheets (MSDSs) v Labels for containers of MDA 2 c

Material safety data sheets (MSDSs) v Labels for mixtures of MDA 2 d

Potential health hazards v Immediate (acute) health effects • • Fever Chills Loss of appetite Vomiting • • Jaundice Dermatitis Anorexia Dark urine 3 a

Potential health hazards v Long-term (chronic effects) v Carcinogenic v Mutagenic v Liver, kidney, blood, or spleen problems 3 b

Limiting employee exposure v Prohibit skin contact v Odor is not a reliable detection v Leak and spill detection 4 a

Limiting employee exposure v Employee rotation is not an acceptable method of compliance v Wear PPE v Avoid strong acids, anhydrides, oxidizers 4 b

Limiting employee exposure v In regulated areas, do not: • Eat or drink • Smoke or chew gum or tobacco • Apply cosmetics v Keep surfaces clean of accumulated MDA 4 c

Handling spills, emergencies, clean-up v Conduct a program to detect leaks and spills v Conduct regular visual inspections 5 a

Handling spills, emergencies, clean-up v Sweep material onto paper and place in fiber carton v Package appropriately for incineration v Know procedures for waste disposal 5 b

Handling spills, emergencies, clean-up v Dispose of waste containing MDA in a proper manner v Repair leaks quickly 5 c

Engineering and work practice controls v Primary control methods of exposure v Ventilation is the most common engineering control method v Understand operation ventilation system 6 a

Emergency procedures v Specific employee duties/assignments v Procedures emergency v Specific to be followed in an training 7 a

Emergency procedures v Access to emergency equipment v Proper use of equipment v Leave area quickly in an emergency 7 b

Emergency procedures v Use water spray to reduce vapors v Prohibit flames and smoking in hazard area 7 c

Emergency procedures v Fire response • Each employee must know procedures/responsibilities • Use water, dry chemical, carbon dioxide extinguishing agents 7 d

Emergency procedures v First aid measures • Get immediate medical attention • Remove victim from exposure area • Remove contaminated clothing • Do not induce vomiting • Wash eyes or skin with large amounts of water 7 e

Emergency procedures v Medical examinations will be made available to exposed employees 7 f

Medical surveillance v Required for all employees: • Exposed at or above the action level for 30 or more days/year • Subject to dermal exposure for 15 or more days/year • Exposed during an emergency • Determined to have been exposed from air monitoring results • Showing signs of exposure 8 a

Medical surveillance v Exposure thresholds are determined without respirator use 8 b

Medical surveillance v Examinations will be: • Prior to assignment to an area where there may be an exposure • At least annually where there may be an exposure • Whenever an employee shows signs and symptoms of toxic levels of exposure 8 c

Medical surveillance v Records are retained for the duration of employment plus 30 years v Examinations will cover: • Skin and liver function • New exposure to liver toxins • Any other tests deemed necessary • Test results 8 d

Medical surveillance v Physician will provide written opinion, which includes: • Physician’s opinion • Recommended limitations • Statement of consultation with physician v Employees receive written opinion within 15 working days 8 e

Medical removal program v Conditions from jobs for medical removal • 29 CFR 1910. 1050(m)(9) v Removal may be temporary or permanent v Policies removal regarding medical 9 a

Personal protective equipment v Purpose v Proper use v Limitations 10 a

Personal protective equipment v Respirators are required: • During the period necessary to install or put into effect engineering or work practice controls • In operations where engineering controls or work practices are not feasible 10 b

Personal protective equipment v Respirators are required: • In operations where engineering controls or work practices do not reduce the PEL to acceptable levels • In emergencies 10 c

Personal protective equipment v Impermeable clothing, gloves, goggles, face shields may be required v PPE selection, use, inspection, cleaning/disposal 10 d

Personal protective equipment v Changing v Storage rooms of clothing v Removing/storing clothing contaminated 10 e

Personal protective equipment v Workers with potential of airborne exposure must: • Wash face and hands before eating, drinking smoking, applying cosmetics • Shower at the end of every work shift 10 f

Personal protective equipment v Never take contaminated clothing home v Only trained workers may remove contaminated material from storage areas 10 g

Copy of regulation available v Location 11 a