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Endpoint:
explosiveness, other
Remarks:
sensitiveness to impact and friction; effects of heating and ignition under confinement
Type of information:
experimental study
Adequacy of study:
weight of evidence
Study period:
From 26/11/2003 to 10/12/2003
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
UN Manual of Tests and Criteria: Part I: Classification procedures, test methods and criteria relating to explosives of Class 1
Qualifier:
according to guideline
Guideline:
other: AFNOR NF T 70-506
Version / remarks:
UN-MTC, part 1 type 1(b)
Qualifier:
according to guideline
Guideline:
other: AFNOR NF T 70-500
Version / remarks:
UN-MTC, part 1 type 3(a)
Qualifier:
according to guideline
Guideline:
other: AFNOR NF T 70-503
Version / remarks:
UN-MTC, part 1 type 3(b)
GLP compliance:
no
Specific details on test material used for the study:
Reference 26907.The test item has been dried under vacuum at low temperature in order to prevent any thermal decomposition. The final water content was 15% m/m.
Key result
Test series:
UN Test series 1
Method:
UN Test 1 (b): Koenen test
Parameter:
limiting diameter (mm)
Result:
result is considered "-" (negative)
Remarks on result:
other: limiting diameter < 1 mm ; 2 fragments observed
Key result
Test series:
UN Test series 1
Method:
UN Test 3 (a) (ii): BAM Fallhammer
Parameter:
limiting impact energy (J)
Result:
result is considered "-" (negative)
Remarks on result:
limiting impact energy > 40 J
Key result
Test series:
UN Test series 1
Method:
UN Test 3 (b) (i): BAM friction apparatus
Parameter:
limiting load (N)
Result:
result is considered "+" (positive)
Remarks on result:
other: 5 positive tests from 30 to 353 N

- UN-MTC part 1 type 1(b): Limiting diameter < 1 mm; 2 fragments observed

- UN-MTC part 1 type 3(a): No positif test between 30 to 50.1 J.

- UN-MTC part 1 type 3(b): 5 positif tests between 30 to 353 N; Crackling was observed.

Conclusions:
- UN-MTC part 1 type 1(b): Limiting diameter < 1 mm; 2 fragments observed- UN-MTC part 1 type 3(a): No positif test between 30 to 50.1 J.- UN-MTC part 1 type 3(b): 5 positif tests between 30 to 353 N; Crackling was observed.
Executive summary:

The sensitiveness to impact and friction; effects of heating and ignition under confinement of the test item (15% of water content after been dried under vaccuum at low temperature) has been assessed in accordance with the UN-MTC part1. The following results had been obtained:

- UN-MTC part 1 type 1(b): Limiting diameter < 1 mm; 2 fragments observed

- UN-MTC part 1 type 3(a): No positif test between 30 to 50.1 J.

- UN-MTC part 1 type 3(b): 5 positif tests between 30 to 353 N; Crackling was observed.

Considering the positive result form the UN-MTC part 1 type 3(b), the test item (15% of water content) should be considered as unstable explosive.

Endpoint:
explosiveness, other
Remarks:
sensitiveness to impact and friction; effects of heating and ignition under confinement
Type of information:
experimental study
Adequacy of study:
weight of evidence
Study period:
From 26/11/2003 to 10/12/2003
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
UN Manual of Tests and Criteria: Part I: Classification procedures, test methods and criteria relating to explosives of Class 1
Qualifier:
according to guideline
Guideline:
other: AFNOR NF T 70-506
Version / remarks:
UN-MTC, part 1 type 1(b)
Qualifier:
according to guideline
Guideline:
other: AFNOR NF T 70-500
Version / remarks:
UN-MTC, part 1 type 3(a)
Qualifier:
according to guideline
Guideline:
other: AFNOR NF T 70-503
Version / remarks:
UN-MTC, part 1 type 3(b)
GLP compliance:
no
Specific details on test material used for the study:
Reference 115332. The test item has been previously dried 2 hours at 80°C. The final water content was 3.1% m/m.
Key result
Test series:
UN Test series 1
Method:
UN Test 1 (b): Koenen test
Parameter:
limiting diameter (mm)
Value:
1
Result:
result is considered "+" (positive)
Remarks on result:
other: limiting diameter = 1 mm ; 3 fragments observed
Key result
Test series:
UN Test series 1
Method:
UN Test 3 (a) (ii): BAM Fallhammer
Parameter:
limiting impact energy (J)
Value:
36
Result:
negative, not sensitive to detonative shock
Key result
Test series:
UN Test series 1
Method:
UN Test 3 (b) (i): BAM friction apparatus
Parameter:
limiting load (N)
Result:
result is considered "-" (negative)
Remarks on result:
other: 0 positive tests from 30 to 353 N

- UN-MTC part 1 type 1(b): Limiting diameter = 1 mm; 3 fragments observed

- UN-MTC part 1 type 3(a): at 36 J, no reaction observed.

- UN-MTC part 1 type 3(b): No positif tests between 30 to 353 N; No reaction observed.

Conclusions:
- UN-MTC part 1 type 1(b): Limiting diameter = 1 mm; 3 fragments observed- UN-MTC part 1 type 3(a): at 36 J, no reaction observed.- UN-MTC part 1 type 3(b): No positif tests between 30 to 353 N; No reaction observed.
Executive summary:

The sensitiveness to impact and friction; effects of heating and ignition under confinement of the test item (3.1% of water content after been dried 2 hours at 80°C) has been assessed in accordance with the UN-MTC part1. The following results had been obtained:

- UN-MTC part 1 type 1(b): Limiting diameter = 1 mm; 3 fragments observed

- UN-MTC part 1 type 3(a): at 36 J, no reaction observed.

- UN-MTC part 1 type 3(b): No positif tests between 30 to 353 N; No reaction observed.

Considering the positive result form the UN-MTC part 1 type 1(b), the test item (3.1% of water content) should be considered as unstable explosive.

Endpoint:
explosiveness, other
Remarks:
sensitiveness to impact and friction; effects of heating and ignition under confinement
Type of information:
experimental study
Adequacy of study:
weight of evidence
Study period:
From 26/11/2003 to 10/12/2003
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
UN Manual of Tests and Criteria: Part I: Classification procedures, test methods and criteria relating to explosives of Class 1
Qualifier:
according to guideline
Guideline:
other: AFNOR NF T 70-506
Version / remarks:
UN-MTC, part 1 type 1(b)
Qualifier:
according to guideline
Guideline:
other: AFNOR NF T 70-500
Version / remarks:
UN-MTC, part 1 type 3(a)
Qualifier:
according to guideline
Guideline:
other: AFNOR NF T 70-503
Version / remarks:
UN-MTC, part 1 type 3(b)
GLP compliance:
no
Specific details on test material used for the study:
Reference 115332. The test item has a water content was 34.7% m/m.
Key result
Test series:
UN Test series 1
Method:
UN Test 1 (b): Koenen test
Parameter:
limiting diameter (mm)
Result:
result is considered "-" (negative)
Remarks on result:
other: limiting diameter < 1 mm ; intact sleeve
Key result
Test series:
UN Test series 1
Method:
UN Test 3 (a) (ii): BAM Fallhammer
Parameter:
limiting impact energy (J)
Result:
negative, not sensitive to detonative shock
Remarks on result:
other: No positif results between 30 to 50.1 J
Key result
Test series:
UN Test series 1
Method:
UN Test 3 (b) (i): BAM friction apparatus
Parameter:
limiting load (N)
Result:
result is considered "-" (negative)
Remarks on result:
other: 0 positive tests from 30 to 353 N

- UN-MTC part 1 type 1(b): Limiting diameter < 1 mm; Intact sleeve.

- UN-MTC part 1 type 3(a): at 36 J, no reaction observed.

- UN-MTC part 1 type 3(b): No positif tests between 30 to 353 N; No reaction observed.

Conclusions:
- UN-MTC part 1 type 1(b): Limiting diameter < 1 mm; Intact sleeve.- UN-MTC part 1 type 3(a): at 36 J, no reaction observed.- UN-MTC part 1 type 3(b): No positif tests between 30 to 353 N; No reaction observed.
Executive summary:

The sensitiveness to impact and friction; effects of heating and ignition under confinement of the test item (34.7% of water content) has been assessed in accordance with the UN-MTC part1. The following results had been obtained:

- UN-MTC part 1 type 1(b): Limiting diameter < 1 mm; Intact sleeve.

- UN-MTC part 1 type 3(a): at 36 J, no reaction observed.

- UN-MTC part 1 type 3(b): No positif tests between 30 to 353 N; No reaction observed.

Considering the negative results form the UN-MTC part 1 type 1(b), 3(a), 3(b), the test item (34.7% of water content) should be considered as not explosive.

Endpoint:
explosiveness, other
Remarks:
sensitiveness to impact and friction; effects of heating and ignition under confinement
Type of information:
experimental study
Adequacy of study:
weight of evidence
Study period:
From 26/11/2003 to 10/12/2003
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
UN Manual of Tests and Criteria: Part I: Classification procedures, test methods and criteria relating to explosives of Class 1
Qualifier:
according to guideline
Guideline:
other: AFNOR NF T 70-500
Version / remarks:
UN-MTC, part 1 type 3(a)
Qualifier:
according to guideline
Guideline:
other: AFNOR NF T 70-503
Version / remarks:
UN-MTC, part 1 type 3(b)
GLP compliance:
no
Specific details on test material used for the study:
Reference 25875. The test item has a water content was 26.2% m/m.
Key result
Test series:
UN Test series 1
Method:
UN Test 3 (a) (ii): BAM Fallhammer
Parameter:
limiting impact energy (J)
Result:
negative, not sensitive to detonative shock
Remarks on result:
other: No positif results between 30 to 50.1 J
Key result
Test series:
UN Test series 1
Method:
UN Test 3 (b) (i): BAM friction apparatus
Parameter:
limiting load (N)
Result:
result is considered "+" (positive)
Remarks on result:
other: 6 positive tests from 30 to 353 N; Crackling observed.

- UN-MTC part 1 type 3(a): at 36 J, no reaction observed.

- UN-MTC part 1 type 3(b): 6 positif tests between 30 to 353 N; Crackling observed.

Conclusions:
- UN-MTC part 1 type 3(a): at 36 J, no reaction observed.- UN-MTC part 1 type 3(b): 6 positif tests between 30 to 353 N; Crackling observed.
Executive summary:

The sensitiveness to impact and friction; effects of heating and ignition under confinement of the test item (26.2% of water content) has been assessed in accordance with the UN-MTC part1. The following results had been obtained:

- UN-MTC part 1 type 3(a): at 36 J, no reaction observed.

- UN-MTC part 1 type 3(b): 6 positif tests between 30 to 353 N; Crackling observed.

Considering the positive results form the UN-MTC part 1 type 3(b), the test item (26.2% of water content) should be considered as unstable explosive.

Description of key information

Key value for chemical safety assessment

Explosiveness:
explosive

Additional information

Justification for classification or non-classification

Several studies on sensitiveness to impact and friction, effects of heating and ignition under confinement of the test item with different water content have been conducted, in accordance with the UN-MTC part1 method. The following table sum up the positive and negative results of these studies, according to UN-MTC part1 method (c.f.corresponding ESRs for more details).

Water content of the test item

Sensitiveness to ignition under confinement

UN-MTC part1, type 1(b)

Sensitiveness to impact

UN-MTC part1, type 3(a)

Sensitiveness to friction

UN-MTC part1, type 3(b)

3.1%(*)

[+]

[-]

[-]

15%(**)

[-]

[-]

[+] – crepitation

26.2%($)

Not determined

[-]

[+] – crepitation

34.7%($)

[-]

[-]

[-]

(*)– The water content of 3.1% was obtained by drying the test item with 34.7% of water content 2 hours at 80°C.

(**)– The water content of 15% was obtained by drying the test item under vacuum at low temperature in order to prevent any thermal decomposition.

($)– Water content of the test item that can be handle, depending on the stage of the process.

 

These results indicate that the test item is sensitive to impact and friction, heating and ignition under confinement, depending on its water content.

In addition, the thermal stability of the test item has been determined with a not-GLP compliant study, following the standard guideline OECD TG 113 (c.f.IUCLID section 4.19). During the DSC run one exothermic event was observed at 187.71°C. The event was very sharp with a high energy. The energy was with 1339.52 J/g above the threshold of -500 J/g. In accordance with the OECD TG 113, the test item is considered thermally stable, as no decomposition was observed at temperature below 150°C.

Moreover, the flammability of the test substance was assessed by performing a not-GLP compliant study according to the EU method A.10 (c.f. IUCLID section 4.13). After determination of the screening test, the test substance should be considered as highly flammable (for EU regulations) and flammable solid (for UN regulations), respectively, as the time of the screening test was very short . the test substance started to burn immediately after contact with the flame of thetecluburner.

Based on the ECHA guidance on the application of the CLP Criteria, section 2.1.4.5.1, and considering that:

-       The test item (0.3% of water) is thermally stable;

-       The test item (0.3% of water) is highly flammable;

-       The test item is sensitive to friction, depending on its water content (3.1 to 34.7%);

The test item should be considered as an unstable explosive to non explosive depending on its water content.