Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Administrative data

Link to relevant study record(s)

Reference
Endpoint:
oxidising gases
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: European Standard EN ISO 10156:2010
Qualifier:
according to guideline
Guideline:
ISO 10156 (Gases and gas mixtures - Determination of fire potential and oxidizing ability for the selection of cylinder valve outlets)
Deviations:
not specified
Principles of method if other than guideline:
A mixture is considered to be more oxidizing than air if the following condition is satisfied: Σ(i) xi Ci >23,5 %.
The Ci coefficient is specific to each oxidizing gas. By definition, the Ci of oxygen is 1,0.
For untested gases, such as ozone, Ci was given a conservative value of 40.
GLP compliance:
not specified
Parameter:
coefficient of oxygen equivalency (Ci)
Result:
40
Remarks on result:
not measured/tested

For ozone, Ci was given a conservative value of 40, hence ozone is more oxidising than air.

Interpretation of results:
Category 1 (oxidising gases) based on GHS criteria
Conclusions:
Ozone is considered more oxidizing than air because the following condition is satisfied: Σ(i) xi Ci > 23.5 %. The Ci coefficient is specific to each oxidizing gas. By definition, the Ci of oxygen is 1.0.
For untested gases, such as ozone, Ci was given a conservative value of 40.
Executive summary:

Ozone is considered more oxidizing than air because the following condition is satisfied: Σ(i) xi Ci > 23.5 %. The Ci coefficient is specific to each oxidizing gas. By definition, the Ci of oxygen is 1.0.

For untested gases, such as ozone, Ci was given a conservative value of 40.

Classification of ozone as category 1 oxidizing gas is based on CLP regulation Annex I section 2.4.2: "Any gas which may, generally by providing oxygen, cause or contribute to the combustion of other material more than air does".

Description of key information

Ozone is considered more oxidizing than air because the following condition is satisfied: Σ(i) xi Ci > 23.5 %. The Ci coefficient is specific to each oxidizing gas. By definition, the Ci of oxygen is 1.0.

For untested gases, such as ozone, Ci was given a conservative value of 40.

Classification of ozone as category 1 oxidizing gas is based on CLP regulation Annex I section 2.4.2: "Any gas which may, generally by providing oxygen, cause or contribute to the combustion of other material more than air does".

Key value for chemical safety assessment

Oxidising properties:
oxidising

Additional information

Justification for classification or non-classification