C-15, r. 4 - Code of ethics of chemists

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33. Unless he has just and reasonable grounds to the contrary, the chemist shall not cease to act for the account of a client. The following shall, in particular, constitute just and reasonable grounds:
(1)  loss of the client’s confidence;
(2)  the fact that the chemist is placed in a situation of conflict of interest or in a context whereby his professional independence could be called in question;
(3)  inducement by the client to perform illegal, unfair, immoral or fraudulent acts;
(4)  the fact that he has been deceived by the client or his failure to co-operate;
(5)  the client has refused to pay the chemist’s fees;
(6)  it is impossible for the chemist to communicate with the client or to obtain from him the elements considered necessary to carry out the mandate.
O.C. 27-2001, s. 33.