ISO 13385-1:2019 pdf download

ISO 13385-1:2019 pdf download.Geometrical product specifications (GPS) — Dimensional measuring equipment
1 Scope
This document provides the most important design and metrological characteristics of callipers
— with analogue indication: vernier scale or circular scale (dial), and
— with digital indication: digital display.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 14253-1, Geometrical product specifications [GPS] — Inspection by measurement of workpieces and measuring equipment — Part 1: Decision rules for verifying conformity or nonconformity with specifications
ISO 14253-5, Geometrical product specifications (GPS’) — Inspection by measurement of workpieces and measuring equipment — Part 5: Uncertainty in verification testing of indicating measuring instruments
ISO/TR 14253-6, Geometrical product specifications (GPS) — Inspection by measurement of workpieces and measuring equipment — Part 6: Generalized decision rules for the acceptance and rejection of instruments and workpieces
ISO 14978:2018, Geometrical product specifications (GPS) — General concepts and requirements for GPS measuring equipment
ISO/IEC Guide 98-3, Uncertainty of measurement — Part 3: Guide to the expression of uncertainty in measurement (GUM:1995)
ISO/IEC Guide 99, International vocabulary of metrology — Basic and general concepts and associated terms (VIM)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 14978 and ISO/IEC Guide 99 and the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/ohp
— IEC Electropedia: available at http://www.electropedia.org/
5.3 Reference point
Callipers with a digital display or a circular scale shall have an adjustable zero point. Callipers with a digital display shall be able to be set to zero in any position within the measuring range; callipers with a circular scale shall be able to be set to zero within the range of the circular scale. For callipers with an adjustable zero point, the metrological characteristics described in this document apply when the measuring faces for external measurements are properly brought into contact for zero setting, and therefore the reference point is considered fixed at this point when evaluating the metrological characteristics. For callipers without an adjustable zero point, there can be an error when the external measuring faces are brought into contact with each other. This error shall be included in the evaluation of the metrological characteristics without applying any correction for it.