Description

BS 3145 – Specification for laboratory pH meters

Covers instruments having moving index, digital, binary coded decimal and recorded outputs. Specifies the scale, maximum permitted overall error and errors arising from 12 sources, electrode input sockets, temperature compensating devices, adjustment controls, and information to be provided by the manufacturer. Test methods for assessing electrical performance.

Cross References:
BS 1647
BS 2586
BS 3693:Part 2
BS 4410
BS 4743
BS 4889
CP 1003