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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:
07 Apr - 05 May 2020
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
EPA OPPTS 830.7300 (Density / Relative Density / Bulk Density)
Deviations:
no
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)
Version / remarks:
2012
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
air comparison pycnometer (for solids)
Key result
Type:
relative density
Density:
1.508 other: dimensionless
Temp.:
20 °C
Conclusions:
According to OECD Test Guideline 109 (2012), Regulation (EC) No 440/2008 Method A.3. and EPA OCSPP Test Guideline 830.7300 (2002), the Relative Density D4,20 of the test item N,N’-di-L-alanyl-L-cystine / (L-Ala-L-Cys)2 at 20 °C ± 0.01 °C (compared to water at 4 °C) is determined to be:
D4,20 = 1.508

Description of key information

Relative Density D4,20 at 20 °C ± 0.01 °C (compared to water at 4 °C) = 1.508 (OECD 109, GLP)

Key value for chemical safety assessment

Relative density at 20C:
1.508

Additional information

According to OECD Test Guideline 109 (2012), Regulation (EC) No 440/2008 Method A.3. and EPA OCSPP Test Guideline 830.7300 (2002), the Relative Density D4,20 of the test item N,N’-di-L-alanyl-L-cystine / (L-Ala-L-Cys)2 at 20 °C ± 0.01 °C (compared to water at 4 °C) is determined to be:

D4,20 = 1.508

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