[3aR-(3aα,5aβ,9aα,9bβ)]-dodecahydro-3a,6,6,9a-tetramethylnaphtho[2,1-b]furan

Density

Link to relevant study record(s)

Reference

Endpoint:

relative density

Type of information:

experimental study

Adequacy of study:

key study

Study period:

From 2013-03-12 to 2013-03-18

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Remarks:

The study was conducted according to an internationally recognised method, and under GLP. No deviation affected the quality of the study. The substance is considered to be adequately characterised with its purity. Therefore full validation applies.

Qualifier:

according to guideline

Guideline:

OECD Guideline 109 (Density of Liquids and Solids)

Qualifier:

according to guideline

Guideline:

EU Method A.3 (Relative Density)

GLP compliance:

yes (incl. QA statement)

Remarks:

Inspected on 10 July 2012 / Signed on 30 November 2012

Type of method:

air comparison pycnometer (for solids)

Type:

density

Density:

1 052 kg/m³

Temp.:

20 °C

Key result

Type:

relative density

Density:

1.052 other: relative density is unitless

Temp.:

20 °C

Remarks on result:

other: D(20/4)

Calibration

Determination	p1 [psig]	p2 [psig]	p3 [psig]	p4 [psig]	Reference Cell Volume [cm3]	Sample Cell Volume [cm3]
1	17.065	6.456	17.069	8.453	90.640	148.947
2	17.046	6.453	17.024	8.436	90.706	148.899
3	17.033	6.448	17.043	8.445	90.715	148.918

Sample

Determination	Sample weight [g]	Test	p1(sample) [psi]	p2(sample) [psi]	Volume [cm3]	Density [kg/m3]	Mean density [kg/m3]
1	32.7560	A	17.020	7.403	31.113	1053	1054
		B	17.152	7.460	31.101	1053
		C	17.131	7.447	30.993	1057
2	32.4221	A	17.068	7.418	30.947	1048	1049
		B	17.111	7.435	30.900	1049
		C	17.035	7.400	30.844	1051
Mean:						1052

The results from the duplicate determinations showed reproducibility of less than ± 20 kg/m3; therefore, the results were considered acceptable.

Executive summary:

The density of the test substance was measured under GLP according OECD 109 / EU A3 guideline, gas comparison pycnometer method. After triplicate calibration, two independant samples were measured in triplicate, and the mean density at 20°C was calculated to be 1052 kg/m3. This results was then converted to relative density towards water at 4°C.

The density of the test substance at 20°C is 1052 kg/m3, and its relative density D(20/4) is 1.052.

Description of key information

The density of the test substance at 20°C is 1052 kg/m3, and its relative density D(20/4) is 1.052.

Key value for chemical safety assessment

Relative density at 20C:

1.052

Additional information

A fully reliable study, conducted according to a recognized OECD/EU method and under GLP, is available. It is considered as a key study. The result is retained as key data for purpose of CSA.