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Administrative data

Endpoint:
density
Remarks:
density
Type of information:
experimental study
Adequacy of study:
key study
Study period:
Experimental Starting Date: 14 April 2014 / Experimental Completion Date: 23 April 2014
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: see 'Remark'
Remarks:
Study conducted in compliance with agreed protocols, with no or minor deviations from standard test guidelines and/or minor methodological deficiencies, which do not affect the quality of the relevant results. The study report was conclusive, done to a valid guideline and the study was conducted under GLP conditions.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2014
Report date:
2014

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
EU Method A.3 (Relative Density)
Deviations:
no
Qualifier:
according to guideline
Guideline:
OECD Guideline 109 (Density of Liquids and Solids)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
pycnometer method

Test material

Constituent 1
Reference substance name:
BRS-661
IUPAC Name:
BRS-661
Test material form:
other: Off-white solid block

Results and discussion

Density
Type:
density
Density:
973 kg/m³
Temp.:
20 °C
Remarks on result:
other: relative density: 0.973

Any other information on results incl. tables

Results

Calibration

The pressure readings and the calculated volume for the reference and sample cells are shown in the following table:

  

Determination

P1

(psi)

P2

(psi)

P3

(psi)

P4

(psi)

Reference

Cell Volume (cm3)

Sample

Cell Volume (cm3)

1

17.278

6.539

17.429

8.627

90.929

149.332

2

17.410

6.590

17.550

8.688

90.952

149.333

3

17.639

6.678

17.153

8.490

91.080

149.495

 

Mean reference cell volume: 90.987 cm3
Mean sample cell volume:
149.387 cm3

As the reference cell volume and sample cell volume were within the defined tolerance (90.953 ± 1.0 cm3and 149.225 ± 1.0 cm3, respectively) the gas comparison pycnometer was therefore considered acceptable for use.

Sample

The pressure readings and volumes obtained for the vessel and the vessel containing test item are shown in the following table:

 

Determination

Test

Vessel

Vessel and Test Item

P1(sample)
(psig)

P2(sample)
(psig)

Volume
(cm3)

P3(sample)
(psig)

P4(sample)
(psig)

Volume
(cm3)

1

A

17.063

6.865

14.225

16.973

7.938

45.826

B

17.454

7.020

14.150

17.412

8.146

45.890

C

17.200

6.920

14.221

17.179

8.038

45.914

2

A

17.643

7.110

14.595

17.804

8.356

46.509

B

17.254

6.950

14.490

17.227

8.083

46.456

C

17.307

6.970

14.447

17.051

8.001

46.470

 

The calculated mean volumes and calculated densities are shown in the following table:

 

Determination

Mean Volume
of Vessel
(cm3)

Mean Volume
of Vessel and
Test Item (cm3)

Volume of
Test Item
(cm3)

Density

(kg/m3)

1

14.199

45.877

31.678

971

2

14.511

46.478

31.968

974

 

Mean density: 973 kg/m3

Relative density: 0.973

Temperature: 20.0 ± 0.5 ºC

 

Applicant's summary and conclusion

Conclusions:
Please see conclusion within the Executive summary below.
Executive summary:

The determination was carried out by gas comparison pycnometer, using a procedure designed to be compatible with Method A3 Relative Density of Commission Regulation (EC) No 440/2008 of 30 May 2008 and Method 109 of the OECD Guidelines for Testing of Chemicals, 02 October 2012.

Instrument: Gas comparison pycnometer (Multi-Pycnometer, Quantachrome, Syosset, N.Y., USA).

Calibration sphere: A stainless steel sphere with a calibrated known total volume (Vcal= 56.559 cm3).

Gas: Helium.

Test conditions: Determinations performed at 20.0°C ± 0.5 °C.

Conclusion

The density of the test item has been determined to be 973 kg/m3at 20.0 ± 0.5 ºC. The corresponding relative density has been calculated to be 0.973.