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Diss Factsheets

Physical & Chemical properties

Density

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Administrative data

Endpoint:
relative density
Type of information:
experimental study
Adequacy of study:
key study
Study period:
13.2.2008
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2008
Report date:
2008

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
EU Method A.3 (Relative Density)
Deviations:
no
GLP compliance:
yes
Type of method:
pycnometer method

Test material

Constituent 1
Reference substance name:
Ashes (residues)
EC Number:
268-627-4
EC Name:
Ashes (residues)
Cas Number:
68131-74-8
Test material form:
solid: bulk
Details on test material:
- Name of test material (as cited in study report): Ashes (residues)
- Substance type: technical product
- Physical state: solid
- Main components: SiO2 (42.12%), Al2O3 (32.16%), Fe2O3 (10.88%), TiO2, MnO, MgO, CaO, Na2O, K2O, SO3 - constituents with content less than 10%
- Expiration date of the lot/batch: unlimited
- Appearance: greyish black powder

Results and discussion

Density
Type:
relative density
Density:
1.94
Temp.:
20 °C

Any other information on results incl. tables

Study results

Table No. 1 Results of density measurement

Parameter

1stdetermination

2nddetermination

Average

Weight of empty pycnometer (m0)

19.45684

18.09101

-

Weight of pycnometer with test substance (m1)

26.80524

26.35542

-

Weight of solid test substance (m1– m0)

7.34840

8.26441

-

Weight of pycnometer with sample and n-hexane (m2)

41.31008

40.69086

-

Weight of pycnometer with n-hexane (m3)

36.50045

35.32724

-

Density of n-hexane (rhexane)

0.67424

0.67474

0.67449

Density of solid substance (rTV)

1.9474

1.9259

1.9366

Relative density of solid substance

-

-

1.937

 

Note: Standard deviation of relative density is 0.02 and was calculated from variation range.

Applicant's summary and conclusion

Conclusions:
Relative density of the test substance, Ashes (residues), is 1.937.

Standard uncertainty of determination was estimated to 0.02 (*).
(*) Standard uncertainty is equal to a standard deviation.
Executive summary:

The density of the test substance,Ashes (residues), was measured. The pycnometer method was used.

 

The procedure was performed according to the Method A.3 Relative density, Directive 92/69/EEC, published in OJ No L 383 A, December1992(Standard ÄŒSN EN ISO 1183-1, part B).

 

Relative density of the test substance, Ashes (residues), is 1.937.

Standard uncertainty is 0.02.