1 Scope
This part of GB/T 3452 lays down the quality acceptance criteria of O-rings used in fluid systems, the dimensions of which are standardized in GB/T 3452.1, ISO 16031-1 and ISO 16031-2.
This part of GB/T 3452 also defines and classifies surface imperfections on O-rings and specifies maximum acceptable limits for these imperfections.
This part of GB/T 3452 is also applicable to O-rings to be used in aerospace construction.
2 Normative references
The following normative documents contain provisions which, through reference in this text, constitute provisions of this part of GB/T 3452. For dated references, subsequent amendments (excluding corrections), or revisions, of any of these publications do not apply to this part of GB/T 3452. However parties to agreements based on this part of GB/T 3452 are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies.
GB/T 3452.1 Fluid power systems - O-rings - Part 1: Inside diameters, cross-sections, tolerances and size identification code (GB/T 3452.1-2005; ISO 3601-1: 2002, MOD)
GB/T 17446 Fluid power systems and components - Vocabulary (GB/T 17446-1998; idt ISO 5598: 1985)
ISO 16031-1 Aerospace fluid systems - O-rings, inch series: Inside diameters and cross sections, tolerances and size-identification codes - Part 1: Close tolerances for hydraulic systems
ISO 16031-2 Aerospace fluid systems - O-rings, inch series: Inside diameters and cross sections, tolerances and size-identification codes - Part 2: Standard tolerances for non-hydraulic systems
3 Terms, definitions and symbols
For the purposes of this part, the terms and definitions given in GB/T 17446 and the following apply.
Foreword i
Introduction iii
1 Scope
2 Normative references
3 Terms, definitions and symbols
4 Grades
5 Surface condition
6 Identification statement (reference to this part)
