BS 8422:2003

Committees responsible
Foreword
1 Scope
2 Normative references
3 Terms, definitions and symbols
4 General
5 Apparatus
6 Preparation
7 Standard calibration
8 Supplementary calibration A - Repeatability
9 Supplementary calibration B - Hysteresis
10 Supplementary calibrations C - Creep and D - Creep recovery
11 Supplementary calibration E - Overload effect
12 Supplementary calibration F - Temperature sensitivity at zero
   force
13 Supplementary calibration G - Temperature sensitivity at maximum
   calibration force
14 Supplementary calibration H - Concentric inclined application of
   force
15 Supplementary calibration J - Eccentric inclined application of
   force
16 Supplementary calibration K - Eccentric force effects
17 Supplementary calibration L - Base-loading effects
18 Supplementary calibration M - Zero force output stability
19 Supplementary calibration N - Output stability at maximum calibration
   force
20 Supplementary calibration P - Damp heat
21 Supplementary calibration Q - Sealing
22 Supplementary calibration R - Excitation voltage effects
23 Calibration certificate
Annex A (informative) Example of content of a calibration certificate
Annex B (informative) Uncertainty budget
Bibliography

Specifies a method of calibration for strain gauge load cell systems for use in various industrial weighing and force measurement applications.

This British standard describes a method of calibration for strain gauge load cell systems for use in various industrial weighing and force measurement applications.

NOTE The technical procedures covered in this British standard are split into one “standard calibration?? (Clause 7), which determines the basic response of the system in terms of non-linearity and reproducibility, and a number of “supplementary calibrations?? (Clause 8 to Clause 22), each of which determines the response of the system to one specific input factor. It is envisaged that load cell systems calibrated in accordance with this standard will normally undergo the standard calibration, possibly together with a number of supplementary calibrations, but a system may also be calibrated solely in accordance with one or more of the supplementary calibrations.