1、April 2008DEUTSCHE NORM English price group 11No part of this standard 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 65.040.10!$Mj“1427198www
2、.din.deDDIN ISO 20966Automatic milking installations Requirements and testing (ISO 20966:2007)English version of DIN ISO 20966:2008-04Automatische Melksysteme Anforderungen und Prfung (ISO 20966:2007)Englische Fassung DIN ISO 20966:2008-04www.beuth.deDocument comprises 17 pagesDIN ISO 20966:2008-04
3、2 Contents Page National foreword .3 National Annex NA (informative) Bibliography 3 1 Scope 4 2 Normative references 4 3 Terms and definitions .5 4 Safety and hygiene requirements 5 5 Functional requirements.5 5.1 General5 5.2 Preparation before milking .6 5.3 Milking.6 5.4 Post-milking teat applica
4、tions6 5.5 Milk transport .7 5.6 Milk cooling and storage.7 6 Cleaning7 7 Instructions for use .8 8 Management.8 8.1 Alarms and notifications.8 8.2 Retrieval of information 8 9 Monitoring 8 9.1 Animals .8 9.2 Disinfection 9 9.3 Stored milk .9 Annex A (normative) Safety requirements with respect to h
5、umans and animals. 10 Annex B (informative) Example of a method of evaluating cleaning of teats and udders . 13 Annex C (informative) Example of methods of evaluating detection systems for milk deemed as abnormal due to the presence of blood or to changes in homogeneity. 14 Bibliography. 17 DIN ISO
6、20966:2008-04 3National foreword This standard has been prepared by Technical Committee ISO/TC 23 “Tractors and machinery for agriculture and forestry” (Secretariat: AFNOR, France) in collaboration with the International Dairy Federation (IDF). The responsible German bodies involved in its preparati
7、on were the Normenausschuss Lebensmittel und landwirtschaftliche Produkte (Food and Agricultural Products Standards Committee), Technical Committee Lebensmittelhygiene, Working Group Automatische Melkverfahren and Normenausschuss Maschinenbau (Mechanical Engineering Standards Committee), Section Lan
8、dmaschinen und Traktoren. The text of ISO 20966:2007 has been adopted in this standard without any modification. The DIN Standards corresponding to the International Standards referred to in this document are as follows: ISO 3918 DIN ISO 3918 ISO 5707 DIN ISO 5707 ISO 6690 DIN ISO 6690 ISO 14159 DIN
9、 EN ISO 14159 Before publication of DIN ISO 20966, IEC 60825:2001 had been replaced by IEC 60825:2007. National Annex NA (informative) Bibliography DIN EN ISO 14159, Safety of machinery Hygiene requirements for the design of machinery DIN ISO 5707, Milking machine installations Construction and perf
10、ormance DIN ISO 3918, Agricultural machinery Milking machine installations Vocabulary DIN ISO 6690, Agricultural machinery Milking machine installations Mechanical tests DIN ISO 20966:2008-04 4 Automatic milking installations Requirements and testing WARNING Some of the tests specified in this Inter
11、national Standard involve procedures which could lead to a hazardous situation. The attention of any person performing tests in accordance with this International Standard is drawn to the need to be appropriately trained in the type of work to be carried out. It is left to the responsibility of the
12、user to check all national regulatory conditions and health and safety requirements applicable for the relevant country. 1 Scope This International Standard specifies requirements for the construction of automatic milking installations (AMI), including specific safety and hygiene aspects and minimum
13、 performance requirements and testing, in addition to those described in ISO 5707 and ISO 6690. It does not contain requirements for the design of the building in which the milking installation is installed. 2 Normative references The following referenced documents are indispensable for the applicat
14、ion 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 3600, Tractors, machinery for agriculture and forestry, powered lawn and garden equipment Operators manuals Conten
15、t and presentation ISO 3918, Milking machine installations Vocabulary ISO 4413, Hydraulic fluid power General rules relating to systems ISO 4414, Pneumatic fluid power General rules relating to systems ISO 5707, Milking machine installations Construction and performance ISO/TR 11688-1, Acoustics Rec
16、ommended practice for the design of low-noise machinery and equipment Part 1: Planning ISO/TR 11688-2, Acoustics Recommended practice for the design of low-noise machinery and equipment Part 2: Introduction to the physics of low-noise design ISO 12100-1:2003, Safety of machinery Basic concepts, gene
17、ral principles for design Part 1: Basic terminology, methodology ISO 12100-2:2003, Safety of machinery Basic concepts, general principles for design Part 2: Technical principles ISO 13852:1996, Safety of machinery Safety distances to prevent danger zones being reached by the upper limbs ISO 14159, S
18、afety of machinery Hygiene requirements for the design of machinery DIN ISO 20966:2008-04 5 IEC 60204-1:2005, Safety of machinery Electrical equipment of machines Part 1: General requirements IEC 60227-1, Polyvinyl chloride insulated cables of rated voltages up to and including 450/750 V Part 1: Gen
19、eral requirements IEC 60245-1, Rubber insulated cables Rated voltages up to and including 450/750 V Part 1: General requirements IEC 60529:2001, Degrees of protection provided by enclosures (IP code) IEC 60825-1:2001, Safety of laser products Part 1: Equipment classification, requirements and users
20、guide IEC 60947-4-1, Low-voltage switchgear and control gear Part 4-1: Contactors and motor starters Electromechanical contactors and motor starters IEC 60947-5-1, Low-voltage switchgear and control gear Part 5-1: Control circuit devices and switching elements Electromechanical control circuit devic
21、es IEC 61800-1, Adjustable speed electrical power drive systems Part 1: General requirements Rating specifications for low-voltage adjustable speed d. c. power drive systems EN 1088, Safety of machinery Interlocking devices associated with guards Principles for design and selection EN 13732, Food pr
22、ocessing machinery Bulk milk coolers on farms Requirements for construction, performance, suitability for use, safety and hygiene 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 3918 and the following apply. 3.1 control system assembly of hardware an
23、d software components to start, operate and stop the AMI 4 Safety and hygiene requirements The safety requirements given in Annex A apply. The hygiene requirements given in ISO 14159 apply. 5 Functional requirements 5.1 General The milking machine shall fulfil the requirements specified in ISO 5707.
24、 It shall be possible to operate the AMI both for milking and testing purposes. DIN ISO 20966:2008-04 6 5.2 Preparation before milking 5.2.1 Cleaning of teats There shall be provision to clean the teats and the parts of the udder in contact with the liners without injuring the animal. The result of
25、the cleaning operation is checked by inspection of the teat and udder areas after operation. NOTE Annex B presents an example of a method of evaluating the inspection of cleaning of teats and udders, although the ultimate result of cleaning is the milk quality in the bulk milk tank. 5.2.2 Foremilkin
26、g There shall be provisions for separation of the foremilk from the milk intended for human consumption. Information shall be provided about the procedures regarding separation of foremilk, and how to inspect the performance. The performance of the foremilk separation shall be verified during operat
27、ion. 5.3 Milking 5.3.1 Accidental teatcup detachment The system shall have provisions to detect accidental teatcup detachment so that the AMI can initiate corrective action to attempt to achieve a successful milking. 5.3.2 Milk yield measurement The milk yield for each milking shall be measured. The
28、 accuracy of milk yield measuring systems shall be stated in the users manual. 5.3.3 Detection of abnormal milk Where an automatic milking unit has provisions to detect abnormal milk from an individual animal and prevent its milk from being mixed with milk intended for human consumption, the abnorma
29、l milk detection method together with recommended limit values shall be described in the users manual. NOTE Annex C presents an example of a method of evaluating detection systems for milk deemed as abnormal due to blood or changes in homogeneity with possible limits of blood levels. 5.3.4 Teatcup r
30、emoval There shall be provisions to limit the total machine-on time. Methods, procedures and limits shall be stated in the users manual. 5.4 Post-milking teat applications It is recommended that there be means to apply disinfectant and/or skin conditioner to the teats after milking. DIN ISO 20966:20
31、08-04 7 5.5 Milk transport 5.5.1 Diversion of milk The AMI shall have provisions to divert milk identified as abnormal, undesirable or withheld milk before it reaches the storage tank. NOTE The decision to divert undesirable and withheld milk is always taken before milking. The decision to divert ab
32、normal milk can be taken at any time during foremilking, milking or after milking of the animal. Diverted milk can be transported to a holding tank or a safe means of disposal. 5.5.2 Delivery lines Milk shall be prevented from entering the bulk milk tank during cleaning of the bulk milk tank. Milk s
33、hall be prevented from entering the bulk milk tank during milk collection if required by local, regional or national regulations. 5.6 Milk cooling and storage 5.6.1 General A bulk milk tank shall have provision to inform the automatic milking machine (AMM) if milk can be received or not. Cleaning so
34、lution shall be prevented from entering the bulk milk tank whilst milk is present in the tank. 5.6.2 Refrigerated bulk milk tank A refrigerated bulk milk tank shall comply, where appropriate, with EN 13732. NOTE 1 EN 13732 was developed for batch milking excluding continuous milking such as with an
35、AMM. The cooling system shall have sufficient capacity to cool milk received in an empty bulk milk tank from high-producing animals milked simultaneously in the available milking units. The cooling system shall be designed so that the milk does not freeze, even at low milk flow from a single animal
36、into an empty tank. NOTE 2 Milk temperatures and cooling times are usually stated by local, regional or national requirements. 5.6.3 Tank for temporary storage If milk is intended to be stored in a temporary tank (buffer tank) longer than 1 h, such as during milk collection and cleaning of the bulk
37、milk tank, the cooling time specified by local, regional or national requirements applies (see 5.6.2, Note 2). 6 Cleaning There shall be provisions to initiate automatic cleaning, rinsing or sanitizing of milk contact surfaces for: a) teatcups, between milking of each animal, including surfaces that
38、 can come in contact with the animal teat; b) all surfaces that have come into contact with milk detected as abnormal, undesirable or withheld milk, before milking an animal for milk intended for human consumption; DIN ISO 20966:2008-04 8 c) surfaces that have been in contact with unrefrigerated mil
39、k after a specified time without milking; d) system cleaning after a specified interval. NOTE Cleaning intervals are specified by international, national or local regulations. 7 Instructions for use In addition to the instructions for milking machines, at least the following shall be emphasized in t
40、he users manual: a) procedures to be followed in the event of alarms raised; b) use of system check functions; c) entering animal details, events and action points into the AMI management and monitoring system; d) use of the AMI management system, and any sensors, to produce alarms and action lists
41、required by the user as a basis for management of the animals. 8 Management 8.1 Alarms and notifications When the safety of a human or animal is at risk, an alarm shall be transmitted immediately to the human supervisor. When the system detects an error but the safety of humans and animals is not at
42、 risk, a notification shall be directed to the human supervisor at an appropriate time. 8.2 Retrieval of information The user shall have provision to access at least the following time-stamped information for a specified number of days: a) data for each milking, including animal identity, duration,
43、yield, whether milking was successful or not on all teats, unintended detachment, re-attachment of teatcups during milking, reason for diversion of milk; b) data for each non-milking visit to the milking machine, including animal identity; c) data for each system cleaning, including duration and act
44、ion done, such as rinsing or sanitation; d) data and reason for each alarm; e) identification of each bottle or vial used during automatic milk sampling. NOTE 1 If any of the above information is intended for export to other parties, a suitable format for data transfer can be that specified in ISO 1
45、17872, ISO 11788-13and ISO 11788-24. NOTE 2 Other information of interest can be: milk quality parameters such as conductivity, somatic cell count, fat content, protein content, urea content; system cleaning parameters such as detergent type and dosage, temperature of the cleaning fluid; milk coolin
46、g parameters such as a log of milk tank temperatures. DIN ISO 20966:2008-04 9 9 Monitoring 9.1 Animals The system shall maintain a current record of the following: a) time since last milking for each animal; NOTE For practical reasons the time can be measured from when the animal leaves the milking
47、place. b) animals due for milking; c) animals that are overdue for milking (a preset time has elapsed since permission to be milked was granted); d) animals with unsuccessful milking; e) animal identity where the system has detected abnormal milk; f) animal identity and time of each milking where th
48、e milk has been diverted. 9.2 Disinfection Means shall be provided to monitor the cleaning solution temperature and to ensure that intended cleaning and disinfecting has been carried out. 9.3 Stored milk Means shall be provided to monitor the temperature of the milk in the bulk milk tank and to ensu
49、re that intended cleaning and disinfecting of milk storage vessels has been carried out. DIN ISO 20966:2008-04 10 Annex A (normative) Safety requirements with respect to humans and animals A.1 Scope This annex defines safety requirements for AMI falling within the scope of this International Standard. It also stipulates requirements on the electrical equipment of the installations. A.2 Safety requirements and measurements A.2.1 General A.2.1.1 All known, relevant and significant hazards rel
