5.2 Determination of mass of coating5.2.1 GeneralIn the case of wire with a zinc or zinc alloy coating, the mass of the coating shall be determined either by the gravimetric method or the volumetric method. The second offers an acceptable degree of accuracy and has the advantage of being quick. This is why it is the preferred method for routine testing of wire of all dimensions which can easily be fitted into the measuring equipment. In the event of any dispute, the gravimetric method shall be used as the reference test method.NOTEthe test methods in this standard do not necessarily include in detail all the precautions necessary to satisfy hygiene and safety requirements in the workplace, etc. Care should be taken to ensure that all necessary precautions are taken and procedures are implemented only by people who have received suitable training.