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Physical & Chemical properties

Density

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Reference
Endpoint:
relative density
Type of information:
experimental study
Adequacy of study:
key study
Study period:
28th June 2010 to 2nd July 2010
Reliability:
1 (reliable without restriction)
Qualifier:
according to guideline
Guideline:
other: In house methodology
Principles of method if other than guideline:
Wash fibre products to remove shot.
Send washed fiber to Aveka for pycnometry density measurement. Analysis of density was performed using a Quantachrome Helium Pycnometer
GLP compliance:
no
Type of method:
pycnometer method
Type:
relative density
Density:
> 2.3 - < 2.5 g/cm³
Temp.:
20 °C

Table 1 - overall average

File Name

Sample Name

Material

Average

 Density(g/cc)

Standard

Deviation(g/cc)

C10-065a

DB 2600 AZS

Fibers

2.335

0.007

C10-065b

DB HP

Fibers

2.488

0.003

Table 2- Test results Pycnometry

 

DBHP 4363

AZDB 4363

Run

Volume (CC)

Density (g/cc)

Volume (CC)

Density (g/cc)

1

0.5233

2.3427

0.6165

2.4932

2

0.5248

2.3360

0.6185

2.4850

3

0.5244

2.3381

0.6189

2.4835

4

0.5282

2.3312

0.6175

2.4891

5

0.5241

2.3391

0.6180

2.4872

Conclusions:
The density measured on this substance falls within the srtandard range given on company published literature

Description of key information

Typical density of this substance is between 2.3-2.5g /cm3

Key value for chemical safety assessment

Relative density at 20C:
2.4

Additional information

Variation of the density range can occur due to differences in the manufacturing methods and production controls