ASTM-D2896 2005
$40.63
D2896-05 Standard Test Method for Base Number of Petroleum Products by Potentiometric Perchloric Acid Titration
Published By | Publication Date | Number of Pages |
ASTM | 2005 | 8 |
1.1 This test method covers the determination of basic constituents in petroleum products by titration with perchloric acid in glacial acetic acid.
1.2 Procedures A and B use different titration solvent volumes and sample weights. Note 1-A round robin on a series of new and used oils and additive concentrates has shown that the two procedures give statistically equivalent results.
1.3 provides the use of an alternative solvent system which eliminates the use of chlorobenzene in this test method. The use of the alternative solvent gives statistically equivalent results; however, the precision is worse. Paragraph provides guidance when comparing results using the two different solvents.
1.4 The constituents that may be considered to have basic characteristics include organic and inorganic bases, amino compounds, salts of weak acids (soaps), basic salts of polyacidic bases, and salts of heavy metals. Note 2-This test method is applicable to both fresh oils and used oils as described in Sections , , and and .
1.5 This test method can be used to determine base number >300 mg KOH/g. However, the precision statement in Section has been obtained only on base number 300 mg KOH/g.
1.6 &solely-SI-units;
This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. For specific hazard statements, see Section , Section , and .
PDF Catalog
PDF Pages | PDF Title |
---|---|
1 | Scope Referenced Documents Terminology Summary of Test Method |
2 | Significance and Use Apparatus Reagents and Materials Standardization of Reagents |
3 | Preparation of Sample Preparation of Electrode System |
4 | Procedure A (120 mL) Procedure B (60 mL) |
5 | Quality Control Checks Calculation Report Back Titration, Procedure A (120 mL) |
6 | Back Titration, Procedure B (60 mL) Report of Result for Back Titration Precision and Bias |
7 | Keywords X1. TEST COVERAGE X1.1 X1.2 X2. ALTERNATIVE SOLVENT X2.1 X2.2 Reagents X2.3 Procedure X2.4 Report X2.5 Precision and Bias |