IS/ISO 20816 : Part 3 : 2022 Mechanical Vibration - Measurement and Evaluation of Machine Vibration - Part 3 Industrial Machinery with a Power Rating Above 15 kW and Operating Speeds Between 120 r/min and 30 000 r/min

ICS 17.160

MED 28

[Superseding IS 14817 (Part 3) : 2017/ISO 10816-3 : 2009 & IS/ISO 7919-3 : 2009]

NATIONAL FOREWORD

This Indian Standard (Part 3) which is identical to ISO 20816-3 : 2022 'Mechanical vibration -Measurement and evaluation of machine vibration - Part 3: Industrial machinery with a power rating above 15 kW and operating speeds between 120 r/min and 30 000 r/min' issued by the International Organization for Standardization (ISO) was adopted by the Bureau of Indian Standards on recommendation of the Mechanical Vibration and Shock Condition Monitoring Sectional Committee and approval of the Mechanical Engineering Division Council.

This Indian Standard supersedes IS 14817 (Part 3) : 2017/ISO 10816-3 : 2009 'Mechanical vibration - Evaluation of machine vibration by measurements on non-rotating parts: Part 3 Industrial machines with nominal power above 15 kW and nominal speeds between 120 r/min and 15 000 r/min when measured in situ (first revision)' and IS/ISO 7919-3 : 2009 'Mechanical vibration - Evaluation of machine vibration by measurements on rotating shafts: Part 3 Coupled industrial machines'.

Under the general title 'Mechanical vibration - Measurement and evaluation of machine vibration', the standard is in seven parts, other parts are as following:

Part 1 General guidelines

Part 2 Land-based gas turbines, steam turbines and generators in excess of 40 MW, with fluid-film bearings and rated speeds off1 500 r/min, 18 800 r/min, 3 000 r/min and 3 600 r/min.

Part 4 Gas turbines in excess of 3 MW, with fluid-film bearings

Part 5 Machine sets in hydraulic power generating and pump-storage plants

Part 8 Reciprocating compressor systems

Part 9 Gear units

The text of ISO standard has been approved as suitable for publication as an Indian Standard without deviations. Certain terminologies and conventions are, however, not identical to those used in Indian Standard. Attention is particularly drawn to the following:

a) Wherever the words 'International Standard' appear, referring to this standard, they should beread as 'Indian Standard'; and

b) Comma (,) has been used as a decimal marker, while in Indian Standards, the current practiceis to use a point (.) as the decimal marker.