UNDERSTANDING - 6 - ISO STANDARDS_ISO Terminology Survey

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* 1. Enter your first and last name

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* 2. Select the correct match for each term with its corresponding definition (all that apply)

Air vent: calibrated aperture which allows admission of air

Ancillary equipment: equipment powered by the same vacuum source as for the extraction of milk, but not directly used for milk extraction from an animal

Upstream: Direction opposite to the flow

Downstream: Direction of the flow

Vacuum: any pressure below atmospheric pressure, specified as the reduction below ambient atmospheric pressure

Nominal vacuum: Vacuum specified as the intended vacuum at the stated site of the milking machine

Average vacuum: arithmetic average of all values of vacuum registered by automatic data acquisition at a selected measuring point

Working vacuum: average vacuum measured over a period of 5 s for specified test conditions

Vacuum drop: difference in average vacuum between a downstream and an upstream point in a system, or at any one point in a system before and after an increase in airflow into the system other than through the vacuum regulator

Transient vacuum drop: momentary difference in vacuum between a downstream and an upstream point in a system, or at any one point in a system during a sudden increase in air flow into the system other than through the vacuum regulator

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* 3. Select all that apply. Definitions:

Vacuum regulator: automatic device designed to control vacuum in milk and vacuum systems

Vacuum gauge: instrument to indicate the vacuum in the milking machine, relative to atmospheric pressure

Main air line: air line(s) between the vacuum pump(s) and the sanitary trap(s)

Interceptor: vessel in the main air line, to prevent liquid or solid matter from gaining access to the pump

Distribution tank: air vessel or chamber, acting as a manifold for pipelines, upstream of the vacuum pump(s) or interceptor(s)

Sanitary trap : vessel between the milk system and the vacuum system to limit movement of liquids and other contaminants between the two systems

Milking vacuum line: line between a sanitary trap and the milking units in recorder milking machines or independent air and milk transport machines

Vacuum tube: connecting tube between a bucket or transport can and the air line

Vacuum tap: valve to permit connection of milking units, or other vacuum operated devices, to the vacuum system

Stall tap: valve used to permit routine connection and disconnection of a pulsator to the pulsator air line

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* 4. Select all the definitions that are correct:

Touch point pressure difference (TPPD): pressure difference between the pulsation chamber and the inside of the liner barrel at which the opposing walls of the liner start to touch each other when it is mounted in its shell

Initial delay time: delay at the start of milking to avoid automatic teatcup or cluster detachment or other pre-set change in milking vacuum or pulsation characteristics

Mid-level milking system: milking system in which the milk inlet valve or milk inlet to the bucket (or transport can), milkline or recorder jar is situated between 0 m and 1.25 m above the animal standing level

Low-level milking system: milking system in which the milk inlet valve or milk inlet to the milkline or recorder jar is below the animal standing level

Pulsator: device that cyclically switches a connected vessel, usually the pulsation chamber, between vacuum and (atmospheric) pressure

Pulsator controller: device which provides signals to operate pulsator(s)

Independent air and milk transport milking machine: milking machine in which air and milk are separated in or near the cluster and then transported separately

Vacuum system: part of the milking machine which is under vacuum and not intended to come in contact with milk

Abnormal milk: milk which is visibly changed in homogeneity or coloured by blood or as defined by local, regional or national legislation

Undesirable milk: Milk which, prior to the milking of the animal, is expected to be unsuitable for dairy processing

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* 5. Select all the correct definitions:

Liner vacuum: vacuum in the barrel below the teat for specified conditions of liquid and air flow or during milking

Mouthpiece vacuum: vacuum measured in the mouthpiece during milking or testing

Milking system: combination of milking machine components, which together provide the dual function of supplying milking vacuum to the cluster and transporting milk away from the cluster

High-level milking system: milking system in which the milk inlet valve or milk inlet to the milkline or recorder jar is more than 1.25 m above the animal standing level

Regulation sensitivity: difference in working vacuum with no milking unit operating, and one with all units connected and operating with the teatcups plugged

Pulsation system: equipment that provides liner movement in the teatcup

Pipeline milking machine: Milking machine in which milk flows from the cluster into a milk-line

Recorder milking machine: milking machine in which milk flows from the cluster into a recorder jar supplied by vacuum from a milking vacuum line and is kept in the recorder jar during milking of each animal

Average milk flow: Milk yield divided by the duration of the milk flow

Peak milk flow: Highest average milk yield during a specified time

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* 6. Select all the correct definitions

Automatic teatcup remover (ATR): device that without human intervention removes a single teatcup after shutting off the milking vacuum

Automatic cluster remover (ACR): device that without human intervention removes all teatcups of the cluster after shutting off the milking vacuum to all teatcups

Milk inlet valve: self-sealing valve to permit routine connection and disconnection of milking units and the milkline

Milk inlet: fixed inlet into a milkline, recorder jar, bucket, can or other equipment to permit connection of the long milk tube

Manual reserve: airflow measured at the same position and conditions as for effective reserve except that the vacuum is not controlled by the vacuum regulator

Regulation loss: difference between manual reserve and effective reserve

Bucket milking machine: milking machine in which milk flows from one or two clusters into a portable milk-receiving bucket, connected to the vacuum system

Direct-to-can milking machine: machine similar to a bucket milking machine, but which may have more than two clusters, and which has a portable transport can or milk tank that allows collection and retention of the milk from several animals

Free air: air at ambient temperature and atmospheric pressure

Expanded air: Air at ambient atmospheric temperature at a given vacuum

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* 7. Select all the correct definitions

Milk flow sensor: device used to signal milk flow or one or more predetermined milk flows from an individual animal or teat

Automatic teatcup attacher: device that without human intervention attaches the teatcups to an animal to be milked

Vacuum undershoot: maximum transient vacuum drop, caused by sudden opening of an air inlet, below the average vacuum with the air inlet open

Vacuum overshoot: maximum increase in momentary vacuum, caused by a sudden closure of an air inlet, above the average vacuum with the air inlet closed

Long milk tube: connecting tube(s) carrying the milk away from the cluster

Milking vacuum tube: tube between the claw or recorder jar and the milking vacuum line that provides vacuum to the claw or the recorder jar but does not transport milk

Vacuum pump capacity: air-moving capacity of the vacuum pump, when it has attained working temperature, at a specified speed and vacuum at the inlet

Automatic milking machine (AMM): Milking machine for unattended milking of identified animals

Automatic milking installation (AMI): automatic milking machine and milk-cooling and -storage system

Receiver air line: line between the sanitary trap and the receiver