History
Document Details
Name of Department/Committee : TED 02
Document Number : TED 02 ( 24508)
Document Title [English] : INTERNAL COMBUSTION ENGINES PISTON RINGS PART 5: QUALITY REQUIREMENTS
Document Title [Hindi] : आंतरिक दहन इंजन — पिस्टन रिंग — भाग 5: गुणता आवश्यकताएँ
Document Type : New
Language : English
Priority : 3
ICS Code : 43.060.10
Date of Project Approval : 27-12-2023
Standards to be Superseded :

Classification Details
Group : Transport and Related Products
Sub Group : Automobiles and their components
Sub Sub Group : IC Engine Components
Aspects : Others
Risk : None
Certification : None
Short Commom Man's Title :
ITCHS Code :
Ministry :
  • Ministry of Road Transport and Highways
Sustainable development Goals :
  • INDUSTRY, INNOVATION AND INFRASTRUCTURE
Degree of Equivalence : Identical under dual numbering
Identical/Equivalent Standards : ISO 6621-5:2020
Organization Type: ISO
Sl.No. Synosis Points
1 This document specifies quality aspects that can be defined but that are not normally found on a drawing specification. It covers the following: a) Single‑piece piston rings of grey cast iron or steel; b) Multi‑piece piston rings (oil control rings) consisting of cast iron parts and spring components; and c) Single‑piece and multi‑piece oil control rings of steel, i.e. oil control rings in the form of strip steel components or steel segments (rails) with spring expander components. In addition to specifying some of the limits of acceptance relating to inspection measuring principles (covered by ISO 6621-2), this document also covers those features for which no recognized quantitative measurement procedures exist and which are only checked visually with normal eyesight (glasses if worn normally) and without magnification. Such features (superficial defects) are additional to the standard tolerances of ring width, radial wall thickness and closed gap. This document does not establish
2 The common features and dimensional tables presented in this document constitute a broad range of variables, and the designer, in selecting a particular ring type, should bear in mind the conditions under which it will be required to operate. The designer should also refer to the specifications and requirements of ISO 6621-3 and ISO 6621-4 before completing his selection. The difficulty of trying to define in absolute terms the quality attainable in normal commercial manufacture of piston rings is well known. In this document, the commonly encountered aspects of quality in terms of casting defects and other departures from ideal are quantified. Many minor defects are clearly quite acceptable; other defects because of size or number are inadmissible.
Timeline Details


S.No. P-Draft
Completion Date		 WC-Draft
Completion Date		 Final-Draft
Completion Date		 Project
Completion Date(Gazette)		 Entered By Entered On
1 27-12-2023 27-05-2024 11-08-2024 26-12-2024 Mr. GAURAV JAYASWAL 27-12-2023
Stages
Sl.
No.		 Stage Date of Occurence Remarks Circulated to Files
1 Generation of Document Number 27-12-2023 -------
2 P-Draft Waived 27-12-2023 -------
3 WC Draft 29-12-2023 Duration : 60 Days
Submitted for HOD approval 		-------
4 WC Draft 29-12-2023 WC approved by HOD
 TEDC   -------