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Hazardous Products Regulations

Version of section 8.1.7 from 2015-02-11 to 2022-12-14:
 


Marginal note:Conversion from range to point estimate

8.1.7 If a formula in section 8.1.5 or 8.1.6 is used, an acute toxicity point estimate must be determined, in accordance with the following table, for each ingredient for which only that ingredient’s classification category or experimentally obtained acute toxicity range is available:

TABLE

Column 1Column 2Column 3
ItemExposure RoutesClassification Category and Associated Experimentally Obtained Acute Toxicity Range Minimum and Maximum ValuesConverted Acute Toxicity Point Estimate
1Oral (mg/kg body weight)
  • 0 < Category 1 ≤ 5
  • 5 < Category 2 ≤ 50
  • 50 < Category 3 ≤ 300
  • 300 < Category 4 ≤ 2000
  • 0.5
  • 5
  • 100
  • 500
2Dermal (mg/kg body weight)
  • 0 < Category 1 ≤ 50
  • 50 < Category 2 ≤ 200
  • 200 < Category 3 ≤ 1000
  • 1000 < Category 4 ≤ 2000
  • 5
  • 50
  • 300
  • 1100
3Inhalation (gases) (ppmV)
  • 0 < Category 1 ≤ 100
  • 100 < Category 2 ≤ 500
  • 500 < Category 3 ≤ 2500
  • 2500 < Category 4 ≤ 20 000
  • 10
  • 100
  • 700
  • 4500
4Inhalation (vapours) (mg/l)
  • 0 < Category 1 ≤ 0.5
  • 0.5 < Category 2 ≤ 2.0
  • 2.0 < Category 3 ≤ 10.0
  • 10.0 < Category 4 ≤ 20.0
  • 0.05
  • 0.5
  • 3
  • 11
5Inhalation (dust/mist) (mg/l)
  • 0 < Category 1 ≤ 0.05
  • 0.05 < Category 2 ≤ 0.5
  • 0.5 < Category 3 ≤ 1.0
  • 1.0 < Category 4 ≤ 5.0
  • 0.005
  • 0.05
  • 0.5
  • 1.5

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