Summary and Exposure Limits
|Compound||Ethylene Oxide||Hydrogen Peroxide||Peractic Acid|
|OSHA1 8hr/15min PEL2||1 ppm / 5 ppm||1 ppm / –||– / –|
|ACGIH3 8hr/15min TLV4||1 ppm / –||1 ppm / –||– / 0.4 ppm|
|HSE5 8hr/15 WEL6||5 ppm / –||1 ppm / 2 ppm||– / –|
|NIOSH7 IDLH8||800 ppm||75 ppm||0.55 ppm (proposed)|
|Cancer Status||IACR: Carcinogenic to Humans; ACGIH: Suspected Human Carcinogen||IACR: Not Classifiable as to Carcinogenicity in Humans; ACGIH: Confirmed Animal Carcinogen with Unknown Relevance to Humans||ACGIH: Not Classifiable as a Human Carcinogen|
|Odor Threshold||400 to 700 ppm||Almost no odor||50 ppb|
2 PEL Permissible Exposure Limit
3 ACGIH American Conference of Governmental Industrial Hygenists
4 TLV Threshold Limit Value
6 WEL Workplace Exposure Limit
7 NIOSH National Institute for Occupational Safety and Health
8 IDLH Immediately Dangerous to Life and Health
- Peracetic acid is very corrosive and on contact can severely irritate and burn the skin and eyes.
- Inhalation of the vapor can irritate the note and throat, cause coughing and/or shortness of breath.
- Greater exposure can cause a pulmonary edema with severe shortness of breath (medical emergency) and may affect liver and kidneys.
- Hydrogen peroxide can be toxic if ingested, inhaled, or by contact with the skin or eyes.
- Inhalation of vapors from > 10% solutions may result in severe pulmonary irritation.
- Eye exposure to 3% hydrogen peroxide may result in pain and irritation, but severe injury is rare. More concentrated solution may result in ulceration or perforation of the cornea.
- Skin with concentrated solutions may cause severe skin burns with blisters.
- Acute exposures to EtO gas may result in respiratory irritation and lung injury, headache, nausea, vomiting, diarrhea, shortness of breath, and cyanosis.
- Chronic exposure has been associated with the occurrence of cancer, reproductive effects, mutagenic changes, neurotoxicity, and sensitization.
IACR Classification of Carcinogens:
Group 1: carcinogenic to humans.
Group 2A: probably carcinogenic to humans.
Group 2B: possibly carcinogenic to humans.
Group 3: not classifiable as to carcinogenicity in humans.
Group 4: probably not carcinogenic to humans.
ACGIH Classification of Carcinogens:
A1) Confirmed human Carcinogen
A2) Suspected Human Carcinogen
A3) Confirmed Animal Carcinogen with Unknown Relevance to Humans
A4) Not Classifiable as a Human Carcinogen
A5) Not suspected as a Human Carcinogen