Forwarding to testing 14.13 The specifi c unit to which the sample is sent for testing is determined by the person responsible The examination of a sample should not be started before the relevant test request has been received The sample should be properly stored until all relevant documentation has been received A request for analysis maybe accepted verbally only in emergencies. All details should immediately be placed on record pending the receipt of written con rmation. 14.17 Unless a computerized system is used, copies or duplicates of all documentation should accompany each numbered sample when sent to the specifi c unit Testing should be performed as described under Part three, section 17. 15.