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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
explosive properties of explosives
Type of information:
experimental study
Adequacy of study:
key study
Study period:
March - May, 2017
Reliability:
1 (reliable without restriction)
Qualifier:
according to
Guideline:
UN Manual of Tests and Criteria: Part I: Classification procedures, test methods and criteria relating to explosives of Class 1
Deviations:
not specified
GLP compliance:
yes (incl. certificate)
Specific details on test material used for the study:
- Test substance name: 2,4-Dinitroanisole
- CAS number: 119-27-7
- Batch number: 55503625
- Molecular formula: C7H6N2O5
- Molecular weight: 198.14 g/mol
- Description: Pale yellow crystalline powder
- Expiry date: 01 January 2021
Key result
Test series:
UN Test series 2
Method:
UN Test 2 (b): Koenen test
Parameter:
limiting diameter (mm)
Value:
1
Result:
result is considered "-" (negative)
Key result
Test series:
UN Test series 2
Method:
UN Test 2 (c) (i): Time/pressure test
Parameter:
other: Time
Value:
0
Result:
result is considered "-" (negative)
Key result
Test series:
UN Test series 3
Method:
UN Test 2 (a): UN gap test
Parameter:
fragmented length (cm)
Value:
0
Result:
result is considered "-" (negative)

Sample mass (g)

Orifice diameter (mm)

Time to first ignition (s)  

Total test time (min)

Fragmentation type

Result

 23.9 3 108  5  O

No explosion

 23.7  1  107  5  A

No explosion

 24.0  1  96  2.3  G

Explosion

 23.9  1.5  102  5  O

No explosion

 23.6  1.5  104  5  O

No explosion

 24.1  1.5  110  5  O

No explosion

Interpretation of results:
other: Exempt from classification as an explosive substance of UN Class 1
Conclusions:
The substance is exempted from classification as an explosive substance of UN Class 1.
Executive summary:

UN Gap test – UN Test 2 (a) (non-GLP test)         Negative

Koenen tube test – UN Test 2 (b)                           Negative

Time-pressure test – UN Test 2 (c)(i)                     Negative

All three tests gave negative results and the sample is therefore exempt from classification as an explosive substance of UN Class 1.

Description of key information

The substance is exempted from classification as an explosive substance of UN 1.

Key value for chemical safety assessment

Explosiveness:
non explosive

Additional information

Explosive properties of DNAN were investigated (Chilworth Technology Ltd, GLP3016001299R1V1/2017, 2017). The test was conducted according to the method described in the UN Recommendations on the Transport of Dangerous Goods, Manual of Tests and Criteria, Test 2 (b).

The sample has been shown to have a limiting diameter of 1 mm. The test result is therefore considered negative (-) (according to the UN Transport of Dangerous Goods Recommendations) and the substance is exempted from classification as an explosive substance of UN 1.

Justification for classification or non-classification

The substance is exempted from classification as an explosive substance of UN 1 Class according to testing conducted according to UN test method 2(b).