2011BS EN ISO 9493:2011 Geometrical product specifications (GPS). Dimensional measuring equipment. Dial test indicators (lever type). Design and metrological characteristics
2011BS EN ISO 9493:2010 Geometrical product specifications (GPS). Dimensional measuring equipment. Dial test indicators (lever type). Design and metrological characteristics
2008BS 907:2008 Specification for dial gauges for linear measurement
2008BS EN ISO 463:2006 Geometrical product specifications (GPS) - Dimensional measuring equipment - Design and metrological characteristics of mechanical dial gauges