XCEPT AS PERMITTED BY COPYRIGHT LAWBS EN 3748:2001 This British Standard, having been prepared under the direction of the Engineering Sector Policy an
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1、XCEPT AS PERMITTED BY COPYRIGHT LAWBS EN 3748:2001 This British Standard, having been prepared under the direction of the Engineering Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 14 December 2001 BSI 14 December 2001 ISBN 0 580 38773 9 National foreword This British Standard is the official English language version of EN 3748:2001. The UK participation in its preparation was entrusted to Technical Committee ACE/1。
2、BS EN 3748:2001 Amd. No. National foreword Date Comments This British Standard, having been prepared under the direction of the Engineering Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 14 December 2001 This British Standard is the official English language version ofEN 3748:2001. The UKparticipation in its preparation was entrusted to Technical Committee ACE/l2/l, Aerospace Fasteners, Fastening Systems, Details and Part。
3、ansmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SAE. TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada) Tel: +1 724-776-4970 (outside USA) Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.org ISSUED 1999-08REAFFIRMED 2012-11THIRD ANGLE PROJECTION CUSTODIAN: E-25 FEDERAL SUPPLY CLASS 5330 AS9770SHEET 1 OF 12PROCUREMENT SPECIFICATION: NONESAE Technical St。
4、s British Standard is the UK implementation of ISO 23748:2016.The UK participation in its preparation was entrusted to TechnicalCommittee ACE/69, Aerospace hydraulic systems, fluids andcomponents.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2016. Published by BSI Standa。
5、rt is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising therefrom, is the sole responsibility of the user.” SAE reviews each technical report at least every five years at which time it may be revised, reaffirmed, stabilized, or cancelled. SAE invites your written comments and suggestions. Copyright 2013 SAE Interna。
6、ith the SAE five-year review policy. 1. SCOPE This standard provides the following: a. The required surface finish criteria for the designed function of the parts b. The definition of surface imperfections and defects that affect surface quality c. The categories by location for each geometry for the permissible type, size and quantity of defects It also establishes the quantitative levels of acceptance by providing defined limits and inspection guidance for the acceptance or rejection of produc。
7、tem or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SAE. TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada) Tel: +1 724-776-4970 (outside USA) Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.org ISSUED 1976-02REAFFIRMED 2013-10THIRD ANGLE PROJECTION CUSTODIAN: E-25 FEDERAL SUPPLY CLASS AS3209SHEET 1 OF 6PROCUREMENT SPECIFICATION: AMS 7276SAE Techn。
8、ansmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SAE. TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada) Tel: +1 724-776-4970 (outside USA) Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.org ISSUED 1974-08REAFFIRMED 2006-07 STABILIZED 2012-06THIRD ANGLE PROJECTION CUSTODIAN: E-25 REV.AAS3085REV. ASAE Technical Standards Board Rules provide that: “Thi。
9、2007-03B55EB1B3E14C22109E918E8EA43EDB30F09CC9B7EF8DD9NormCD - Stand 2007-03B55EB1B3E14C22109E918E8EA43EDB30F09CC9B7EF8DD9NormCD - Stand 2007-03B55EB1B3E14C22109E918E8EA43EDB30F09CC9B7EF8DD9NormCD - Stand 2007-03B55EB1B3E14C22109E918E8EA43EDB30F09CC9B7EF8DD9NormCD - Stand 2007-03B55EB1B3E14C22109E918E8EA43EDB30F09CC9B7EF8DD9NormCD - Stand 2007-03B55EB1B3E14C22109E918E8EA43EDB30F09CC9B7EF8DD9NormCD - Stand 2007-03B55EB1B3E14C22109E918E8EA43EDB30F09CC9B7EF8DD9NormCD - Stand 2007-03B55EB1B3E14C22109。
10、retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SAE. TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada) Tel: +1 724-776-4970 (outside USA) Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.org ISSUED 2013-04THIRD ANGLE PROJECTION CUSTODIAN: A-6/A-6C FEDERAL SUPPLY CLASS 5331 AS6203SHEET 1 OF 3PROCUREMENT SPECIFICATION: NONESAE Techn。
11、 92138 ISSY - LES - MOULINEAUX CEDEX - FRANCE 0 aecrna 201 TR 4271 Edition I 02-00 _ _ PUBLISHED BY THE EUROPEAN ASSOCIATION OF AEROSPACE INDUSTRIES (AECMA) Guliedelle 94 - 8-1200 BRUXELLES - Tel. (+32) 2 775 81 10 - Fax. (+32) 2 775 81 11 ICs: 49.080 Descriptors: Hydraulic fluid power, fluid circuits, hydraulic component, sealing joint, O-ring, dimension, designation ENGLISH VERSION Aerospace series O-rings grooves Design criteria for O-ring grooves Basic calculations Srie a。
12、rt is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising therefrom, is the sole responsibility of the user.” SAE reviews each technical report at least every five years at which time it may be revised, reaffirmed, stabilized, or cancelled. SAE invites your written comments and suggestions. Copyright 2012 SAE Interna。
13、 BS ISO 3601-3:2005 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 1 December 2005 BSI 1 December 2005 ISBN 0 580 47243 4 National foreword This British Standard reproduces verbatim ISO 3601-3:2005 and implements it as the UK national standard. It supersedes BS 6442:1984 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee MCE/11, Fluid seals and their housings, which 。
14、記供參考。
2. 種類： O 型環之種類依材料及用途分類，如表 1 所示。
表 1 3. 成品之物理性質：以標稱代號為 P26 之運動用 O 型環之形狀及尺度製成代表性試樣，並依第 8.1.1 節之規定試驗，其物理性質須符合表 2 之規定。
表 2 材 料 種 類 試 驗 項 目 第 1 種 A 類 第 1 種 B 類 第 2 種 第 3 種 第 4 種 C 類 第 4 種 D 類抗拉強度 MPakgf/cm2 (最小 ) 7.8 80 11.7 120 7.8 80 7.8 80 3.4 35 7.8 80 伸長率 %(最小 ) 200 80 160 120 50 160 拉應力 MPakgf/cm2 (100%伸長時 )(最小 ) 2.7 28 2.7 28 2.7 28 1.9 20 4. 疲勞試驗：依第 8.1.2 節之規定實施疲勞試驗後，其結果不得有裂紋、剝離、磨耗、鬆弛變形及其他缺陷出現。
但本節之規定不適用於第 1 種 B 類，及第 4 種 C 類、 D類之 O 型環。
5. 形狀及尺度：形狀及尺度依表 3、表 4、表。
15、 ( ) ( ) ( ) : (http:/www.standard.go.kr) ： ： 1971 10 20 ： 2002 10 29 : 2007 10 19 2007-0837 ： 。
16、t is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising therefrom, is the sole responsibility of the user.” SAE reviews each technical report at least every five years at which time it may be revised, reaffirmed, stabilized, or cancelled. SAE invites your written comments and suggestions.Copyright 2014 SAE Internati。
