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Density

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Reference
Endpoint:
relative density
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2016
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 109 (Density of Liquids and Solids)
Version / remarks:
referencing to ISO 758 for Hydrostatic balance method for liquid substances
Qualifier:
according to guideline
Guideline:
other: ISO 758-1976, Liquid chemical products, determination of density at 20°C
Deviations:
no
GLP compliance:
no
Other quality assurance:
ISO/IEC 17025 (General requirements for the competence of testing and calibration laboratories)
Remarks:
Merieux NutriSciences operates according to GLP Certification of Good Laboratory Practice
Type of method:
pycnometer method
Specific details on test material used for the study:
Lot No.: 50000067900
Dynamic viscosity of test material:
The dynamic viscosity of the test material at 20°C is 0.13037 Pa*s. As such, according to OECD 109, the pycnometer method is applicable (dynamic viscosity < 500 Pa*s).
Key result
Type:
relative density
Density:
0.978 g/cm³
Temp.:
20 °C

Details on measurements and calculations:

Measurements performed:

m_1-Test 1 = 24.0976 g

m_1-Test 2 = 24.0874 g

m_1-Test 3 = 24.0729 g

m_2-Water = 24.5960 g

Density of the sample at 20°C:

Test 1: 0.978 g/cm^3

Test 2: 0.978 g/cm^3

Test 3: 0.977 g/cm^3

average value: 0.978 g/cm^3

Density of water at 4°C: 0.9999 g/cm^3

Relative density of the sample:

ρ rel = ρ sample (g/cm^3)/ ρ water (g/cm^3) = 0.978/ 0.9999 = 0.978

Conclusions:
Relative density (ISO 758-1976): 0.978
Executive summary:

The relative density was determined according to ISO 758-1976 (referenced to for pycnometric method for liquids within OECD 109) and OECD 109. Three replicate measurements were performed, resulting in a mean density of 0.978 g/cm^3 (Test 1: 0.978 g/cm^3; Test 2: 0.978 g/cm^3; Test 3: 0.977 g/cm^3). This equals the relative density D420 (dimensionless) of 0.978.

Description of key information

Relative density D420 (ISO 758-1976)): 0.978 g/cm^3 

Key value for chemical safety assessment

Relative density at 20C:
0.978

Additional information

The relative density was determined according to ISO 758-1976 (referenced to for pycnometric method for liquids within OECD 109) and OECD 109. Three replicate measurements were performed, resulting in a mean density of 0.978 g/cm^3 (Test 1: 0.978 g/cm^3; Test 2: 0.978 g/cm^3; Test 3: 0.977 g/cm^3).This equals the relative density D420(dimensionless) of 0.978.