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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
Study period:
From 08 November 2010 to 21 December 2010
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
sieving
Type of particle tested:
primary particle
Type of distribution:
volumetric distribution
Specific details on test material used for the study:
- Name of test material (as cited in study report): TARTRATE DE CALCIUM
- Physical state: beige powder
- Analytical purity: 93.44%
- Lot/batch No.: CAMP 09-10
- Expiration date of the lot/batch: December 2011
- Storage conditions of test material: at room temperature, protected from light and humidity.
Remarks on result:
other: can not be determined with this method; not useful (migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.)
No.:
#1
Size:
710 µm
Distribution:
98.2 %
No.:
#2
Size:
500 µm
Distribution:
95.1 %
No.:
#3
Size:
355 µm
Distribution:
88.9 %
No.:
#4
Size:
250 µm
Distribution:
76.5 %
No.:
#5
Size:
180 µm
Distribution:
52.6 %
No.:
#6
Size:
125 µm
Distribution:
26.1 %

Preliminary dry sieving:

 

Ambient humidity

About 26%

Temperature

 

About

Mass of test item used

100.007 g

Table 1

Test sieve

25 mm

4 mm

1 mm

0.1 mm

Collecting pan

Percentage of residue (%)

/

/

3.3

69.4

27.3

Time of mechanical sieving (mn)

/

/

30

55

/

Time of manual sieving (mn)

/

/

1

14

/

Remark: The particles size was visibly lower than 25 and. So, the sieves of 25 andwere not used.

The majority of the particleswere smallerthan.So,the principal sieving was made below.

Conclusions:
After the preliminary test, the size of the majority of the particles was between 100 μm and 1 mm. After the main test, the majority of the test item particles were between 125 and 250 μm.
Executive summary:

Particle size Distribution of Calcium tartrate was determined according to OECD Guideline 110. After the preliminary test, the size of the majority of the particles was between 100 μm and 1 mm. After the main test, the majority of the test item particles were between 125 and 250 μm.

Description of key information

Particle size Distribution of Calcium tartrate was determined according to OECD Guideline 110. After the preliminary test, the size of the majority of the particles was between 100 μm and 1 mm. After the main test, the majority of the test item particles were between 125 and 250 μm.

Additional information