Section 20. (1) The Chemical Examiner shall, on payment of the prescribed fee (if any), compare with the said mo

20. (1) The Chemical Examiner shall, on payment of the prescribed fee (if any), compare with the said model test-apparatus and verify every apparatus for testing petroleum which is submitted to him for the purpose. (2) If any apparatus for testing petroleum, when compared and verified as provided by sub-section (1), is 106 Petroleum. [ACT VIII (Miscellaneous.—Sections 21-22.) is found correct, or correct subject to certain corrections to be applied to the results of the tests, the Chemical Examiner shall stamp the same with a special number and with the date of the verification, and shall further give a certificate in writing under his hand, in the prescribed form, to the effect that on the date aforesaid the apparatus was compared and verified by him and found to be correct, or correct subject to certain specified corrections to be applied to the results of the tests. (3) A certificate granted under this section shall, until the contrary is proved, be proof of the matters stated therein. (4) The Chemical Examiner shall keep a register, in the prescribed form, of all certificates granted under this section. (5) Subject to the payment of the prescribed fees (if any), the said model test-apparatus shall be at all reasonable times open to inspection by any person desiring to inspect it. Miscellaneous.