AS 2763-1988

1 - AS 2763-1988 VIBRATION AND SHOCK-HAND-TRANSMITTED VIBRATION-GUIDELINES FOR MEASUREMENT AND ASSESSMENT OF HUMAN EXPOSURE
4 - PREFACE
4 - CONTENTS
5 - FOREWORD
6 - SECTION 1. SCOPE AND GENERAL
6 - 1.1 SCOPE.
6 - 1.2 APPLICATION.
6 - 1.3 REFERENCED DOCUMENTS.
7 - SECTION 2. CHARACTERIZATION OF HAND-TRANSMITTED VIBRATION
7 - 2.1 GENERAL CONSIDERATIONS.
7 - 2.1.1 Influences.
7 - 2.1.2 Likely influences.
7 - 2.1.3 Factors affecting circulation changes.
7 - 2.1.4 Reporting of vibration exposure.
7 - 2.2 DIRECTION OF VIBRATION.
8 - 2.3 MAGNITUDE OF VIBRATION.
8 - 2.4 MEASUREMENTOF HAND-TRANSMITTED VIBRATION.
8 - 2.4.1 Measuring equipment.
8 - 2.4.2 Measurement of r.m.s. value.
9 - 2.4.3 Frequency range and transducer accuracy.
9 - 2.4.4 Location and mounting of vibration transducers.
9 - 2.4.5 Quantities to be measured.
9 - 2.4.6 Coupling of the hand to the vibration source.
9 - 2.4.7 Exposure conditions and exposure time.
10 - SECTION 3. CHARACTERIZATION OF HAND-TRANSMITTED VIBRATION EXPOSURE
10 - 3.1 DAILY EXPOSURE.
10 - 3.2 MULTI-AXIS VIBRATION.
10 - 3.3 CONVERSION OF ONE-THIRD AND OCTAVE BAND DATA TO WEIGHTED ACCELERATION.
11 - 3.4 VIBRATION ACCELERATION LEVEL.
12 - BIBLIOGRAPHY
13 - APPENDIX A - GUIDELINES FOR THE EVALUATION OF HAND- TRANSMITTED VIBRATION EXPOSURE
15 - APPENDIX B - MEDICAL SCREENING AND ADVICE
15 - B1 MEDICAL EXAMINATION FOR SEGMENTAL VIBRATION.
15 - B2 TECHNICAL PREVENTIVE MEASURES AIMED AT REDUCING THE VIBRATION INTENSITY DIRECTED INTO THE HANDS.
15 - B3 ADMINISTRATIVE PREVENTIVE MEASURES AIMED AT REDUCING THE VIBRATION DIRECTED INTO THE HAND.
15 - B4 ADVICE TO PERSONS WHO USE VIBRATING HAND TOOLS.
16 - SEGMENTAL VIBRATION WORKER: SAMPLE EXAMINATION FORM
19 - SAMPLE REPORT FORM

Specifies methods for measuring and reporting hand-transmitted vibration exposure in three orthogonal axes for one-third octave and octave bands and provides guidance for the evaluation of hand-transmitted vibration specified in terms of a frequency-weighted vibration acceleration and daily exposure time. It does not define the limits of safe exposure.

This Standard sets out general methods for measuring and reporting hand-transmitted vibration exposure in three orthogonal axes for the one-third octave bands having centre frequencies from 6.3 Hz to 1250 Hz, for octave bands having centre frequencies from 8 Hz to 1000 Hz, and for a frequency-weighted measure covering the frequency range from 5.6 Hz to 1400 Hz. This Standard provides guidance for the evaluation of hand-transmitted vibration specified in terms of a frequency-weighted vibration acceleration and daily exposure time. It does not define the limits of safe exposure. This guidance is derived from a consensus of opinion based upon data available from both practical experience and laboratory experimentation concerning human response to hand-transmitted vibration. It cannot be taken to define completely safe exposure ranges in which vibration diseases cannot occur.This Standard does not specify the risk factor of health impairment for different operational processes, tools, and machines.NOTE: Reference should be made to AS 2973 for information related to vibration-measuring instrumentation.