Abstract
ISO 19973-2:2015 provides test procedures for assessing the reliability of pneumatic directional control valves by testing and the methods of reporting the results of testing. General test conditions and the calculation method are provided in ISO 19973-1. The methods specified in ISO 19973-1 apply to the first failure, as obtained with the three-points moving average (3PMA) method, without repairs, but excluding outliers.
The lifetime of pneumatic and electro-pneumatic directional control valves is usually given as a number of cycles. Therefore, whenever the term "time" is used in this part of ISO 19973-2:2015, this variable is to be understood as cycles.
ISO 19973-2:2015 also specifies test equipment and threshold levels for tests to assess the reliability of pneumatic directional control valves.
General information
-
Status: PublishedPublication date: 2015-09Stage: Close of review [90.60]
-
Edition: 2Number of pages: 14
-
Technical Committee :ISO/TC 131ICS :23.100.01
- RSS updates
Amendments
Amendments are issued when it is found that new material may need to be added to an existing standardization document. They may also include editorial or technical corrections to be applied to the existing document.
Amendment 1
Edition 2019
Life cycle
-
Previously
WithdrawnISO 19973-2:2007
-
Now
-
00
Preliminary
-
10
Proposal
-
20
Preparatory
-
30
Committee
-
40
Enquiry
-
50
Approval
-
60
Publication
-
90
Review
-
95
Withdrawal
Amendments
Provide additional content; available for purchase; not included in the text of the existing standard.PublishedISO 19973-2:2015/Amd 1:2019
-
00