INTERNATIONAL STANDARD ISO 14253 1.pdf -
INTERNATIONAL STANDARD ISO 14253 1.pdf - ->>->>->> https://tiurll.com/2tth4r
INTERNATIONAL STANDARD ISO 14253 1.pdf -
What is ISO 14253-1 and why is it important for geometrical product specifications
ISO 14253-1 is an international standard that establishes the rules for verifying the conformity or nonconformity with a given tolerance for a characteristic of a workpiece or a measuring equipment, taking measurement uncertainty into account[^1^]. It applies to specifications defined in general GPS standards, i.e. standards prepared by ISO/TC 213, such as ISO 1101, ISO 5459, ISO 8015, etc[^1^].
The purpose of ISO 14253-1 is to provide a consistent and unambiguous way of deciding whether a product or a measuring equipment meets the specified requirements or not[^2^]. It also helps to avoid disputes between suppliers and customers by defining default decision rules that can be applied in a supplier/customer relationship[^1^].
ISO 14253-1 defines two types of decision rules: one for verifying conformity with specifications (usually given as an upper specification limit or a lower specification limit or both) and one for verifying nonconformity with specifications (usually given as maximum permissible errors)[^1^]. The decision rules are based on the concept of conformance probability limit and nonconformance probability limit, which are the minimum probabilities of conformity and nonconformity required for making a decision[^1^]. The default values for these limits are 95 % and 5 % respectively[^1^].
ISO 14253-1 also specifies how to calculate the measurement uncertainty and how to use it in the decision rules[^1^]. The measurement uncertainty is an estimate of the range of values that could reasonably be attributed to the measurand (the quantity intended to be measured)[^1^]. It takes into account various sources of error and variability that affect the measurement process, such as repeatability, reproducibility, calibration, environmental conditions, etc[^1^]. The measurement uncertainty can be evaluated using different methods, such as the GUM method (Guide to the Expression of Uncertainty in Measurement) or the Monte Carlo method[^1^].
ISO 14253-1 is a useful standard for anyone involved in geometrical product specifications and verification, such as designers, manufacturers, inspectors, metrologists, quality managers, etc. It helps to ensure that the products and measuring equipment are fit for their intended purposes and that they comply with the relevant standards and regulations. It also contributes to improve the quality and reliability of the products and measuring equipment and to reduce the costs and risks associated with nonconformity.
References
ISO 14253-1:2017 - Geometrical product specifications (GPS) â Inspection by measurement of workpieces and measuring equipment â Part 1: Decision rules for verifying conformity or nonconformity with specifications
ISO 14253-1:2017(en), Geometrical product specifications (GPS) Inspection by measurement of workpieces and measuring equipment Part 1: Decision rules for verifying conformity or nonconformity with specifications
INTERNATIONAL STANDARD ISO 14253 1.pdf 9160f4acd4
https://www.zimcommunity.org.au/group/zcav-group/discussion/cf839b71-0a07-4362-af51-928cc7f13137