Calibration

Alan Browne Gauges is a UKAS calibration accredited laboratory (Lab No 0155) offering a calibration, replacement, measurement, servicing and repair facility. Inaugurated in Leamington Spa in 1962 by the founder Alan Browne, with its permanent on site temperature controlled calibration laboratory, it quickly grew to become one of the most highly regarded laboratories in the world

06Interferometry – the UK's Prime Source to Class A

Class A uncertainties apply to the measurement of length by interferometry of grade K gauge blocks to BS EN ISO:3650 and BS4311:2007, when they are measured twice, wrung to a platen by each of the two measuring faces in turn, and the mean of these two measurements stated on the certificate. Calibration of Grades 00 and K to Class A interferometry

Calibration by Comparison

Calibrate lengthUKAS accredited to Class C & D by comparison Range of calibration services: 014

• Calibrate length and variation

• Minimal lap, calibrate length

• Minimal lap, calibrate length and variation

• All materials steel, tungsten carbide and ceramic

Comparison

UKAS 001

Class B: uncertainties apply to the measurement of length by interferometry of grade K standards of Length to BS 4311:2007 and UKAS 001BS EN ISO 3650 when they are measured once, wrung to a platen by, if not otherwise specified, the left hand (unmarked) measuring face.

Class C: uncertainties apply to the measurement of length of gauge blocks, by comparison with grade K standards of length of a similar material, of grades 0,1, and 2 to BS EN ISO 3650 and BS 4311:2007.

Class D: uncertainties are the maximum applicable to the measurement of length of grade 3 and grade 4 gauges respectively to BS 4311:2007, by comparison with grade K standards of length of a similar material.

Class D: uncertainties also apply to the measurement of length of tungsten carbide gauge blocks up to a length of 25mm/1 inch, by comparison with grade K steel standards.