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Particle size distribution (Granulometry)

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Reference
Endpoint:
particle size distribution (granulometry)
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
comparable to guideline study with acceptable restrictions
Qualifier:
according to
Guideline:
other: ASTM D1921-01
Deviations:
no
GLP compliance:
no
Remarks:
GLP is not required for the determination of physico-chemical properties
Type of method:
sieving
Type of distribution:
mass based distribution
No.:
#1
Size:
150 µm
Distribution:
88.96 %
No.:
#2
Size:
75 µm
Distribution:
10.33 %
No.:
#3
Size:
45 µm
Distribution:
0.7 %
No.:
#4
Size:
38 µm
Distribution:
0.01 %

Particle Size (Sieve Analysis) Measurement Test Results

Material Tested

Sample Wt.

(g)

Moisture Content (wt %)

Cumulative Total of Actual Weight after Testing (g)

Sieving Time (min)

Antistat (Slip Agent) Added

Percent of Material Retained on Each Sieve

Percent of Material Passed #400 Mesh Sieve

Sieve #100 (150 µm)

Sieve #200 (75 µm)

Sieve #325 (45 µm)

Sieve #400 (38 µm)

-400 mesh (pan)

BPA-DA (bulk)

100

0.2 (as rec’d)

100.72

10

1% of sample weight

88.96

10.33

0.7

0.01

None

BPA-DA (bulk)

100

0.2 (as rec’d)

100.93

30

1% of sample weight

88.67

8.96

2.26

0.11

None

Conclusions:
The particle size distribution of BPA DA was determined according to ASTM D1921-01. The resulting distribution is reported below:
Percent material retained on sieve sizes (µm) 150, 75, 45, 38: 88.96, 10.33, 0.7, 0.01 (10 min sieving)/88.67, 8.96, 2.26, 0.11 (30 min sieving).
Percent material that passed the sieve size 38 µm: none (10 and 30 min sieving).
Executive summary:

The particle size distribution of the test material was determined following a sieving method in accordance with ASTM D1921-01 (Safety Consulting Engineers, 2006).

The percent material retained on sieves of sizes 150, 75, 45 and 38 (µm), were: 88.96, 10.33, 0.7 and 0.01, respectively after 10 minutes of sieving and 88.67, 8.96, 2.26, 0.11 respectively after 30 min sieving.

Under the conditions of this study, 89 % of the particles were determined to be > 150 µm; no particles were < 38 µm.

Description of key information

Under the conditions of this study, 89 % of the particles were determined to be > 150 µm; no particles were < 38 µm.

Additional information

The particle size distribution of the test material was determined following a sieving method in accordance with ASTM D1921-01 (Safety Consulting Engineers, 2006). The study was awarded a reliability score of 2 in accordance with the criteria set forth by Klimisch et al. (1997).

The percent material retained on sieves of sizes 150, 75, 45 and 38 (µm), were: 88.96, 10.33, 0.7 and 0.01, respectively after 10 minutes of sieving and 88.67, 8.96, 2.26, 0.11 respectively after 30 min sieving.

Under the conditions of this study, 89 % of the particles were determined to be > 150 µm; no particles were < 38 µm.