Specifies dial gauges and dial test indicators used for linear measurement, reading to 0.01 mm and 0.002 mm, and gives requirements for materials, properties, basic design details, accuracy and finish. Appendices describe methods of test for the more important features of the instruments, and give notes on their care and use. Information is also given for calibration requirements for long travel dial gauges. For dial gauges, the Standard is in technical agreement with ISO/R463, but the accuracy and performance requirements have been amplified to show repeatability and discrimination as two separate metrological properties. For dial test indicators the technical requirements are in complete agreement with current ISO/TC3 work.