1、April 2010 Translation by DIN-Sprachendienst.English price group 21No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS
2、65.040.10!$aAz“1623087www.din.deDDIN ISO 5707Milking machine installations Construction and performance (ISO 5707:2007)English translation of DIN ISO 5707:2010-04Melkanlagen Konstruktion und Leistung (ISO 5707:2007)Englische bersetzung von DIN ISO 5707:2010-04Installations de traite mcanique Constru
3、ction et performances (ISO 5707:2007)Traduction anglaise de DIN ISO 5707:2010-04SupersedesDIN ISO 5707:1998-05See start of validitywww.beuth.deIn case of doubt, the German-language original shall be considered authoritative.Document comprises 54 pages03.10 A comma is used as the decimal marker. Star
4、t of validity This standard takes effect on 1 April 2010. Contents Page National foreword 3 Introduction.4 1 Scope 5 2 Normative references 5 3 Terms and definitions .5 4 General6 4.1 Tests for compliance.6 4.2 Access for measurements6 4.3 Safety and hygiene 7 4.4 Materials .7 4.5 Users manual 8 5 V
5、acuum system9 5.1 General9 5.2 Vacuum regulation 9 5.3 Vacuum pumps . 10 5.4 Vacuum regulator . 11 5.5 Vacuum gauge 12 5.6 Air lines 12 5.7 Interceptor . 13 5.8 Sanitary trap 13 5.9 Leakage into the vacuum system . 13 5.10 Vacuum taps for bucket milking units 13 6 Pulsation system 14 6.1 Design data
6、 14 6.2 Pulsator air line. 14 6.3 Pulsation rate, pulsator ratio and pulsation chamber vacuum phases 14 7 Milk system 15 7.1 General. 15 7.2 Design of milklines . 15 7.3 Air leakage. 15 7.4 Drainage. 15 7.5 Milk inlets. 15 7.6 Diversion of milk. 15 7.7 Receiver . 15 7.8 Releaser. 16 7.9 Delivery lin
7、e. 16 2 DIN ISO 5707:2010-04 8 Milking unit.16 8.1 General .16 8.2 Teatcup.16 8.3 Teatcup attachment 17 8.4 Teatcup removal17 8.5 Vacuum shut-off 17 8.6 Air vent and leakage17 8.7 Vacuum in the milking unit.17 8.8 Milk recording equipment.18 8.9 Attachments to the milking unit.18 8.10 Long milk tube
8、s.19 8.11 Bucket milking units .19 9 Cleaning .19 Annex A (normative) Vacuum pump capacity Effective reserve plus allowances for cows and water buffaloes.20 Annex B (informative) Determination of the minimum internal diameter of air lines 26 Annex C (informative) Determination of the minimum interna
9、l diameter of milklines for cows and water buffaloes.33 Annex D (informative) Small ruminants41 National foreword This standard has been prepared by Technical Committee ISO/TC 23 “Tractors and machinery for agriculture and forestry” (Secretariat: AFNOR, France). The responsible German body involved
10、in its preparation was the Normenausschuss Maschinenbau (Mechanical Engineering Standards Committee), Section Landtechnik. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. DIN shall not be held responsible for identifying any or al
11、l such patent rights. For the International Standards referred to in clause 2 of this standard, which have not been published as DIN EN or DIN ISO Standards with the same number, there are no national standards available. Subclause 4.3 of this standard contains safety requirements. Since ISO 5707 ha
12、s been completely revised, a transitional period for the use of DIN ISO 5707:1998-05 has not been specified. Amendments This standard differs from DIN ISO 5707:1998-05 as follows: a) The standard has been completely revised. Previous editions DIN ISO 5707: 1984-08, 1985-09, 1998-05 3 DIN ISO 5707:20
13、10-04 Introduction This International Standard has been developed in response to worldwide demand for minimum specifications for milking machine installations. The basic requirements for the construction and performance of milking machines for animals are determined by the physiology of the animal a
14、nd the need for a standard of high hygiene and milk quality. Milking machine installations Construction and performance 4 DIN ISO 5707:2010-04 1 Scope This International Standard specifies the minimum performance and information requirements and certain dimensional requirements for satisfactory func
15、tioning of milking machines for milking and cleaning. It also specifies minimum requirements for materials, design, manufacture and installation. This International Standard is applicable to milking machines for milking cows, water buffaloes, sheep and goats where animals are milked with pulsation c
16、reated by vacuum, and where milk is, at least partly, transported with the help of airflow. Some clauses are not applicable to all types of milking machines. The qualitative requirements also apply to installations for milking other mammals used for milk production. 2 Normative references The follow
17、ing referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 3918:2007, Milking machine installations Vocabulary ISO
18、 4288, Geometrical Product Specifications (GPS) Surface texture: Profile method Rules and procedures for the assessment of surface texture ISO 6690:2007, Milking machine installations Mechanical tests ISO 12100-1, Safety of machinery Basic concepts, general principles for design Part 1: Basic termin
19、ology, methodology ISO 12100-2, Safety of machinery Basic concepts, general principles for design Part 2: Technical principles ISO 14159, Safety of machinery Hygiene requirements for the design of machinery IEC 60335-2-70, Household and similar electrical appliances Safety Part 2-70: Particular requ
20、irements for milking machines 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 3918 apply. 5 DIN ISO 5707:2010-04 4 General 4.1 Tests for compliance The methods for performance testing referred to in this document are specified in ISO 6690. These test
21、ing methods may not be sufficient to test the performance of an installation incorporating special design features. In order to avoid limitation of development, other systems than those described in this International Standard can be used if the same result can be achieved. Such systems and other sp
22、ecial performance characteristics that are not covered by the requirements in this International Standard should also be described and specified in the users manual. 4.2 Access for measurements 4.2.1 General The connection points specified in 4.2.2 and 4.2.3 shall be provided to test the function of
23、 the installation. Dismantling parts of the milking machine is acceptable to access these connection points. All connection points and their location shall be described in the users manual. 4.2.2 Airflow measuring connections The following connection points shall be provided for an airflow meter: A1
24、: to enable measurement of effective reserve, manual reserve and regulator leakage: in bucket or direct-to-can milking machines, between the regulator sensing point and the first vacuum tap; in pipeline milking machines, at or near the receiver(s), upstream of the sanitary trap(s); in recorder milki
25、ng machines, at every sanitary trap, or near the sanitary trap(s) on the milking vacuum line(s); A2: to enable measurement of leakage into the vacuum and milk systems, between the vacuum pump(s) and the sanitary trap(s) or the first vacuum tap. See connection points A1 and A2 in Figures 1, 2 and 3 o
26、f ISO 3918:2007. NOTE In bucket and direct-to-can milking machines, the connection point A2 is the same as A1. When closed, e.g. not in use, these connection points shall not form any trap for liquids. The connection point shall have the same internal diameter as the air line or (48,5 2) mm, whichev
27、er is smaller. 4.2.3 Vacuum measuring connections The following connection points shall be provided for a vacuum meter: Vm at or upstream of the measuring point A1; Vr near each regulator sensing point; Vp near each vacuum pump inlet. To enable measurement of exhaust backpressure, a suitable connect
28、ion point Pe shall be provided to measure exhaust backpressure on each exhaust line at the vacuum pump outlet. 6 DIN ISO 5707:2010-04 See measuring connections Vm, Vr, Vp and Pe in Figures 1, 2 and 3 of ISO 3918:2007. NOTE In a pipeline milking machine, Vm can be any point in the milking system in,
29、or upstream of, the receiver. In a recorder milking machine, Vm can be in the milking vacuum line or in the nearest convenient recorder jar. In a bucket milking machine, Vm = Vr and can be combined with the nearest convenient vacuum tap. These connection points should be located at least five pipe d
30、iameters from any elbows, air inlet points or other fittings creating air turbulence. If the regulator sensing point is on a branch, there shall be two measuring points Vr, one to measure the vacuum drop in the air line upstream of this branch and the other one to determine the regulator leakage nea
31、r the regulator sensing point. 4.2.4 Other necessary measures Means shall be provided to isolate the vacuum pump from the installation to make it possible to measure the vacuum pump capacity. To enable measurement of leakage into the vacuum system and of the air used to produce pulsation, it is nece
32、ssary that the pulsators can be stopped or disconnected in all types of installation. 4.3 Safety and hygiene Installations shall comply with the relevant safety requirements given in ISO 12100-1 and ISO 12100-2. The electrical components shall comply with the relevant safety requirements given in IE
33、C 60335-2-70. NOTE The significant hazards which require action to reduce risk are: crushing, shearing and slipping, tripping and falling hazards; electrostatic phenomena and external influences on electrical equipment, noise; unhealthy postures, inadequate local lighting and hazards caused by failu
34、re of the energy supply or disorder of the control system. The hygiene requirements given in ISO 14159 apply. The equipment has to be effective, easy and safe to use and test. Since most milking machines depend on a public electricity supply that fails occasionally, alternate means for operating the
35、 machine in such emergencies should be installed. It is important to design and install the equipment so that noise levels in the cowshed or parlour and in the vicinity are as low as practicable and comply with requirements in national legislation. Milking equipment and connection to milk storage fa
36、cilities on the farm should be designed and maintained to minimize turbulence, frothing, foaming or agitation of the milk, thereby reducing physical damage to the milk fat and the development of free fatty acids. Further safety and hygiene requirements will be covered by legislation that will be the
37、 subject of other International Standards. 4.4 Materials All components that are subjected to a vacuum shall be designed and constructed to withstand a minimum vacuum of 90 kPa without permanent distortion. Materials that may involve danger if damaged, such as glass, shall be designed using a safety
38、 factor of 5 against external pressure (i.e. 5 90 kPa). Materials in contact with milk shall meet requirements for food contact surfaces. All materials in contact with milk or cleaning solutions, whether used for rigid components (e.g. buckets, pipelines or recorder jars) or flexible components (e.g
39、. joint rings, teatcup liners), shall be constructed to withstand the maximum temperature used in the plant as specified in the users manual. In addition, such materials, when used in accordance with the recommendations in the users manual, shall not impart taint to the milk. 7 DIN ISO 5707:2010-04
40、All milk contact surfaces shall be free from engraving or embossing. All metal milk contact surfaces, except for welded seams, shall have a surface roughness, Ra, less than or equal to 2,5 m when tested in accordance with ISO 4288. Surface roughness, Ra, on welded seams shall not exceed 16 m. Copper
41、 or copper alloys shall not be used in any part of the installation that may come into contact with milk or cleaning and disinfecting fluids other than water. Materials that come into contact with cleaning and disinfecting fluids at concentrations of normal use shall be suitable for such contact. Ma
42、terials that also come into contact with milk shall be resistant to both milk fat and cleaning and disinfecting solutions. 4.5 Users manual 4.5.1 General The users manual shall specify a system of measures that ensure that the function, safety and hygiene of the milking machine are maintained during
43、 its intended lifetime. This includes instructions for routine servicing and replacement of individual parts. An indication shall be given as to whether particular actions should be performed by the user or if other suitably qualified personnel are needed. If it is intended that the user shall make
44、adjustments, instructions for such adjustments shall be included. If special tools are required, these shall be supplied with the installation. The users manual shall be written in at least one of the countrys official languages that is relevant for the user. Besides the instructions stated in this
45、clause, data given in other clauses in this document shall also be specified in the users manual. 4.5.2 Installation details At least the following details shall be provided: mounting dimensions, space requirements and critical building dimensions; recommended ambient conditions for the different pa
46、rts of the milking machine; minimum electrical power supply and earthing requirements; minimum water supply and drainage requirements; nominal working pressure and capacity of a compressed air system; amount of airflow and vacuum for cleaning; the minimum required airflow use of vacuum-driven ancill
47、ary equipment. 4.5.3 Instructions for use At least the following instructions shall be provided: start up, operating and shut down procedures; the effective reserve, as calculated and as measured; recommended cleaning and disinfecting procedures, including temperatures and chemicals, and components
48、requiring manual cleaning; 8 DIN ISO 5707:2010-04 the maximum temperature at which the installation can be cleaned and disinfected; definition of any manual intervention, such as manual actuation of valves or replacement of single use items such as filters, along with the appropriate time interval;
49、procedures necessary to avoid contamination of the milk from cleaning solutions, withheld, abnormal and undesirable milk; the maximum number of units or maximum milk flow per slope of the milkline; procedures for introducing animals new to the milking installation. 5 Vacuum system 5.1 General The ultimate goal of vacuum regulation is to maintain vacuum conditions at the teat end within the intended range. In order to meet this requirement the machine shall be capable of adequate vacuum control an
