GB/T 18779.4-2020 Active
GB/T 18779.4-2020 Geometrical product specifications (GPS)—Inspection by measurement of workpieces and measuring equipment—Part 4:Background on functional limits and specification limits in decision rules
Abstract
This part of GB/T 18779 specifies the main assumptions under the theoretical ideal judgment rules in GB/T 18779.1. It explains why these rules should be the default rules and the factors that need to be considered before applying different judgment rules.
This part applies to all specifications involved in the GPS general standard (see GB/T 20308), which are compiled by SAC/TC 240, including workpiece specifications (usually given in the form of specification limits) and measurement equipment specifications (usually given in the form of maximum allowable errors).
General Product Information
| Document Type | National standards |
|---|---|
| Standard Status | Active |
| Standard Code | GB/T 18779.4-2020 |
| CCS | Length measurement |
| ICS | Comprehensive measurement of length and angle |
| Implement Date | 2021-07-01 |