334. Disqualification for interest.

Where a certifier has a sufficient interest in the outcome of his decision to create a likelihood of bias he will be disqualified from exercising the jurisdiction1. Where objection to a certificate under a contract is taken on the ground of interest, it must be shown that the interest was not known to the complaining party at the time the contract was made2. A contractor will be presumed to have known: (1) that the certifier is an agent, and in some cases an employee, of the employer3; (2) that the certifier may have given the employer estimates in respect