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Disclaimer: The author is not trying to present himself as an authority on all available CM standards. This blog post is simply an attempt to help those who may be unaware that such guidance exists or of the extent of such standards.

We previously discussed a series of international standards pertaining to condition monitoring of industrial equipment with vibration analysis in, Condition Monitoring & Vibration Classification Standards Awareness: Part 9 ISO 10816-21:2015. This blog is number 10 in a series of blogs describing some international standards as a help to our Ludeca partners. This blog is about the ISO 13373-1 standard that concerns itself with “General Procedures”. i.e., the procedures relied upon in the subsequent series of standards targeting the more specific elements of which vibration condition monitoring and diagnostics are comprised of.

The following two paragraphs are from the ISO introduction to the 13373-1 standard: “The measurement methods described in this part of ISO 13373 reflect current common methods of measurements utilizing seismic and non-contacting vibration transducers. However, it is recognized that other methods of assessing the vibration condition of machines are in development. Although not included at this time, this part of ISO 13373 does not preclude the use of such measurement techniques.

ISO/TC 108 is at present also in the process of developing new International Standards on the subject of Machinery Diagnostics. These International Standards are intended to provide guidance on the overall monitoring of the “health” of machines, including factors such as vibration, tribology, oil purity and thermography.”

This standard is titled:

ISO 13373-1 :2002

Condition monitoring and diagnostics of machines -Vibration condition monitoring

Part 1: General procedures

The scope of this standard is quoted below from the ISO.org preview page (quotation in bold):

Scope:

This part of ISO 13373 provides general guidelines for the measurement and data collection functions of machinery vibration for condition monitoring. It is intended to promote consistency of measurement procedures and practices, which usually concentrate on rotating machines. Because of the diversity of approaches to condition monitoring, recommendations specific to a particular kind of monitoring programme will be addressed in additional parts of ISO 13373.

This part of ISO 13373 is a basic document which presents recommendations of a general nature, encompassing:

1. measurement methods,
2. measurement parameters,
3. transducer selection,
4. transducer location,
5. transducer attachment,
6. data collection,
7. machine operating conditions,
8. vibration monitoring systems,
9. signal conditioning systems,
10. interfaces with data-processing systems,
11. continuous monitoring, and
12. periodic monitoring.

The vibratory conditions of a machine can be monitored by vibration measurements on the bearing or housing structure and/or by vibration measurements of the rotating elements of the machine. In addition, measurements can be continuous or non-continuous. This part of ISO 13373 provides guidance on the types of measurements recommended in both the continuous and the non-continuous modes.

It is emphasized that this part of ISO 13373 addresses only the procedures for vibration condition monitoring of machines. In many cases, the complete condition monitoring and diagnostics of a machine can also include other parameters, such as thermography, oil analysis, ferrography, process variations, temperatures and pressures. These non-vibratory parameters will be included in other International Standards.

This part of ISO 13373 covers rotating machines. However, many of the procedures included can be applied to other types of machines, for example reciprocating machines.

To read the ISO’s preview of this standard, click here.

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