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Reference
Endpoint:
explosive properties of explosives
Type of information:
experimental study
Adequacy of study:
key study
Study period:
From July 29, 2019 to August 02, 2019
Reliability:
1 (reliable without restriction)
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
Version / remarks:
UN test 1(b): Koenen Test
GLP compliance:
yes
Parameter:
thermal sensitivity - Koenen test: diameter of the orifice plate
Remarks:
mm
Value:
20
Number of fragments:
8
Remarks on result:
not thermal sensitive if heated under defined confinement
Parameter:
thermal sensitivity - Koenen test: limiting diameter (mm)
Value:
1
Remarks on result:
not thermal sensitive if heated under defined confinement

Table 1. Preliminary test results

 Sr. No.  Weight of test item (mg)  Time (minutes)  Results
 1  10.24  Non sensitive for Explosion

Table 2. Heating rate of DIBUTYL PHTHALATE - 3.2 LPM

 Sr. No.  Time (sec)  Temperature (°C)
 1  0  30
 2  20  62.7
 3  40  114.4
 4  60  158.3
 5  80  199.0
 6  100  232.0
 7  120  258.0
       After 60 seconds, heating rate = 158.3°C -30°C =128.3°C

Table 3. Heating rate of DIBUTYL PHTHALATE - 4.5 LPM R1

Sr. No.  Time (sec)  Temperature (°C)
 1  0  31.7
 2  20  80.7
 3  40  133.1
 4  60  186.5
 5  80  218.0
 6  100  253.0
 7  120  280.0
       After 60 seconds, heating rate = 186.5°C -31.7°C =154.8°C

Table 4. Heating rate of DIBUTYL PHTHALATE - 4.5 LPM R2

 Sr. No.  Time (sec)  Temperature (°C)
 1  0  29.4
 2  20  99.0
 3  40  142.0
 4  60  177.0
 5  80  210.0
 6  100  247.0
 7  120  276.0
       After 60 seconds, heating rate = 177°C -29.4°C =147.6°C

Table 5. Calibration of Heating rate - Mean value

 Sr. No.  R1  R2
 1  154.8  147.6
        After 60 seconds, mean heating rate was 151.2°C

Based on results obtained at 4.5 LPM, mean heating rate of DIBUTYL PHTHALATE was achieved to be 135°C/min to 285°C/min range.

Table 6. Determination of Explosiveness of test item

 Orifice Plate Size (mm)  Heating time (min) Fragmentation (Yes/No)  Explosion of test item (Yes/No)  Orifice plate diameter reported as Explosion of test item (Yes/No)
 20

5

 No

 No

                         Less than 1.0 mm

12

 No

 No

8.0

 No

 No

5.0

 No

 No

3.0

 No

 No

2.5

 No

 No

2.0

 No

 No

1.5

 No

 No

1.0

 No

No 

Result: Test item showed that no violent effect on heating under confinment condition.

Interpretation of results:
GHS criteria not met
Conclusions:
The explosive properties of CR SR94 was determined and concluded as Non Explosive.
Executive summary:

This study was performed as per UN Test 1(b): Koenen Test guideine. The Explosiveness of the test item was determined using Koenen Tube. There is no violent effect on heating under confinement conditions. The explosive results showed that negative and limiting diameter was recorded and reported as less than 1.0 mm diameter. Therefore, the explosive properties of CR SR94 was determined and concluded as Non Explosive.

Description of key information

The explosive properties of CR SR94 was determined and concluded as Non Explosive.

Key value for chemical safety assessment

Explosiveness:
non explosive

Additional information

This study was performed as per UN Test 1(b): Koenen Test guideine. The Explosiveness of the test item was determined using Koenen Tube. There is no violent effect on heating under confinement conditions. The explosive results showed that negative and limiting diameter was recorded and reported as less than 1.0 mm diameter. Therefore, the explosive properties of CR SR94 was determined and concluded as Non Explosive.

Justification for classification or non-classification

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