Comparison of ISO standards of milk milking machinesfor 1983, 1996 and 2007

This research has examined the renewal and changes of international test standards related to milking machines and facilities in comparison with years. If automatic milking is excluded, there are 3 standards that have been revised 3 times until now. The standards for the first time in 1983 were revised twice in 1996 and 2007. These standards are: ISO 3918 Milking Machines - Terminology, ISO 5707 Milking Machines - Construction and Performance, and ISO 6690 Milking Machines - Mechanical Tests. These standards are bucket or direct-to-can milking machine, pipeline milking machine and milking parlours. New tests have been added to the international milking machine testing standards in each revision. Acceptable tolerances are reduced in milking machines and plants for milking success, breast health, milk yield and quality increase. Minimum requirements, facilities and capacities are specified in more detail in 2007 standards. With the latest revision of international standards, vacuum pump capacities have been increased according to machine specifications. It has been determined that the regulator selection is very important in order to keep the vacuum value at which the vacuum regulator is adjusted to allowable tolerances and low regular and irregular vacuum fluctuations. It has been seen that the selection and installation of milking claws, connection points, etc. materials are effective in increasing milk line leaks. In addition to the leakage of airline leakages, air consumption of pulse devices is prominent As a result, for the proper establishment and operation of milking facilities; periodic tests should be repeated regularly to perform regular adjustment, maintenance and repair. In order to achieve high milking performance, the last revised ISO 2007 international standards should be used when performing periodic tests. All relevant tests shown in these standards must be fully performed. State-sponsored and unsupported milking facilities should be periodically and fully tested in accordance with the latest revised directive of the relevant ISO standards.