GB/T 1800.1-2020
Geometrical product specifications (GPS)—ISO code system for tolerances on linear sizes—Part 1: Basis of tolerances, deviations and fits (English Version)

Standard No.

GB/T 1800.1-2020

Language

Chinese, Available in English version

Release Date

2020

Published By

国家市场监督管理总局、中国国家标准化管理委员会

Latest

GB/T 1800.1-2020

Replace

GB/T 1800.1-2009 GB/T 1801-2009

Scope

This part of GB/T 1800 establishes the ISO code system for linear dimensional tolerances, which applies to the following types of dimensional elements: a) cylindrical surface; b) two opposite parallel surfaces. This section defines the basic concepts and related terms of the ISO code system for linear dimensional tolerances, and provides a standardized method for selecting common tolerance zone codes from a variety of options. In addition, this section defines the basic terms of the two-dimensional elements that are not constrained by direction and position, and explains the principles of "reference hole" and "reference axis".

GB/T 1800.1-2020 Referenced Document

• GB/T 1800.2-2020 Geometrical product specifications (GPS)—ISO code system for tolerances on linear sizes—Part 2: Tables of standard tolerance classes and limit deviations for holes and shafts
• GB/T 38762.1 Geometrical product specifications (GPS)—Dimensional tolerancing—Part 1: Linear sizes

GB/T 1800.1-2020 history

• 2020 GB/T 1800.1-2020 Geometrical product specifications (GPS)—ISO code system for tolerances on linear sizes—Part 1: Basis of tolerances, deviations and fits
• 2009 GB/T 1800.1-2009 Gemetrical Product Specifications(GPS).Limits and fits.Part 1:Bases of tolerances,deviations and fits
• 1999 GB/T 1801-1999 Limits and fits Selection of tolerance zones and fits
• 1997 GB/T 1800.1-1997 Limits and fits--Based--Part 1: Terminology
• 1980 GB/T 1800-1979 General Tolerance and Fit Standard Tolerance and Basic Deviation

GB/T 1800.1-2020 Geometrical product specifications (GPS)—ISO code system for tolerances on linear sizes—Part 1: Basis of tolerances, deviations and fits has been changed from GB/T 1801-2009 Gemetrical Product Specifications(GPS).Limits and fits.Selection of tolerance zones and fits.

GB/T 1800.1-2020 -All Parts