Resinoid of Canarium luzonicum (Burseraceae) obtained from the exudate by cyclohexane extraction

Density

Link to relevant study record(s)

Reference

Endpoint:

relative density

Type of information:

experimental study

Adequacy of study:

key study

Study period:

28-30 November 2017

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Justification for type of information:

The study was conducted according to an internationally recognised method. Test substance is adequately characterised. Therefore full validation applies.

Reason / purpose for cross-reference:

reference to same study

Reason / purpose for cross-reference:

reference to other study

Qualifier:

according to guideline

Guideline:

OECD Guideline 109 (Density of Liquids and Solids)

Version / remarks:

2012

Deviations:

no

Qualifier:

according to guideline

Guideline:

EU Method A.3 (Relative Density)

Version / remarks:

2008

Deviations:

no

Principles of method if other than guideline:

Not applicable

GLP compliance:

yes (incl. QA statement)

Remarks:

Inspected on 13 and 14 October 2014/ Signed on 8 April 2015

Type of method:

buoyancy method - hydrostatic balance

Key result

Type:

relative density

Density:

1.023 other: no dimension

Temp.:

20 °C

Density of the replacement liquid:

All measured values are given in the following table:

First Determination
Weighing #	m1	m2	m3
Item	Pycn. empty	Pycn.+ H2O	Pycn. + repl.liq.
Mass in g	36.7395	61.6018	61.6002
Temperature in °C	20.0	19.6	20.0
Second Determination
Weighing #	m1	m2	m3
Item	Pycn. empty	Pycn.+ H2O	Pycn. + repl.liq.
Mass in g	36.7394	61.6023	61.6005
Temperature in °C	20.2	19.8	20.0

Density of the test item:

All measured values are given in the following table:

First Determination	Weight A	Weight B
Weighing #	m1 (in air)	m2 ( in replacement liquid)
Mass in g	4.5999	0.1073
Temperature in °C	19.7	19.7
Second Determination	Weight A	Weight B
Weighing #	m1 (in air)	m2 ( in replacement liquid)
Mass in g	6.6089	0.1647
Temperature in °C	19.7	19.7

Results - Mean values:

Parameter	Value	Unit	Standard Deviation	Relative Standard Deviation
Volume of Pycnometer	24.91	cm^3	0.0022	0.01%
Density of Replacement liquid	0.9982	g/cm^3	0.0001	0.01%

First Determination
Density of test item	1.0220	g/cm^3
Second Determination
Density of test item	1.0237	g/cm^3
Value of the mean	1.0228	g/cm^3
Standard Deviation	0.0012	g/cm^3
Relative Standard Deviation	0.12	%

Conclusions:

The density of the test item was calculated as 1.0228 ± 0.0012 g/cm3 at 20 ± 0.3 °C, which is the mean of two values ± the standard deviation.

Executive summary:

The study was performed in order to determine the density of test item according to OECD 109, resp. EU A.3 guideline, using a hydrostatic balance.

The density of test item was determined to be 1.0228 ± 0.0012 g/cm3 at 20 ± 0.3 °C.

Description of key information

The density of test item was determined to be 1.0228 ± 0.0012 g/cm³ at 20±0.3 °C.

This value is the mean of two independent determinations.

Key value for chemical safety assessment

Relative density at 20C:

1.023

Additional information

A fully reliable experimental study, conducted according to OECD 109 /EU A3 guideline, using pycnometer, is available. It is considered as a key study, and the result is retained as key data.