Revised Standard from Last Update.

1. SCOPE

1.1 This standard (Part 86) prescribes the method of test for the determination of basic constituents in petroleum products by potentiometric titration with perchloric acid in glacial acetic acid.

1.2 For many materials the results obtained by this method will be similar to those obtained by IS 1448 (Part 1/Sec 2). With certain compounds such as strongly overbased oil additives and nitrogenous polymeric compounds, higher results may be obtained.

1.3 The constituents that may be considered to have basic characteristics include organic and inorganic bases; amino compounds; salts of weak acids, for example, soaps; basic salts of polyacidic bases; and salts of heavy metals.

2. REFERENCES

The standards given below contain provisions which, through reference in this standard, constitute provisions of this standard. At the time of publication, the edition indicated were valid. All standards are subject to revision, and parties to agreement based on this standard are encouraged to investigate the possibility of applying the most recent edition of these standards.

IS 1070 : 2023 Reagent grade water - Specification (fourth revision)

IS 1448 (Part 1/Sec 2) : 2002 Methods of test for petroleum and its products: (Part 1/Sec 2) Determination of base number of petroleum products by potentiometric titration (second revision)