ASTM D2296 Continuity of Quality of Electrical Insulating Polybutene Oil for Capacitors
4. Materials and Manufacture
4.1 No change shall be made in the type of polybutene oil without prior agreement with the purchaser. The polybutene oil shall not contain additives.

5. Detail Requirements and Test Methods
5.1 Electrically insulating polybutene oil shall conform to the requirements prescribed in Table 1 and shall be tested in accordance with the test methods listed therein.

6. Sampling
6.1 Electrically insulating polybutene oil shall be sampled in accordance with Practice D923.

7. Shipping
7.1 All polybutene oil containers, including attendant pipes and pumps, shall be clean and dry. No change shall be made in the approved type of containers without prior agreement with the purchaser.

8. Keywords
8.1 capacitors; dielectric; dielectric fluid; insulating oil; oil; polybutene oil