1、AECMA STANDARD NORME AECMA AECMA NORM prEN 4415 Edition P 1 February 2005 PUBLISHED BY THE EUROPEAN ASSOCIATION OF AEROSPACE INDUSTRIES - STANDARDIZATION b Gulledelle 94 - 8-1200 Brussels -Tel. 32 2 775 81 10 - Fax. 32 2 775 811 1 - www.aecma-stan.org ICs: Descriptors: ENGLISH VERSION Srie arospatia
2、le Matriaux non-mtalliques Textiles Tissus troits Spcification technique Aerospace se ries Non-metallic materials Textiles Narrow woven fabrics Technical specification Luft- und Raumfahrt Nichtmetallische Werkstoffe Textilien Gewebebnder Technische Lieferbedingungen This “Aerospace Series“ Prestanda
3、rd has been drawn up under the responsibility of AECMA-STAN (The European Association of Aerospace Industries - Standardization). It is published for the needs of the European Aerospace Industry. It has been technically approved by the experts of the concerned Domain following member comments. Subse
4、quent to the publication of this Prestandard, the technical content shall not be changed to an extent that interchangeability is afiected, physically or functionally, without re-identification of the standard. After examination and review by users and formal agreement of AECMA-STAN, it will be submi
5、tted as a draft European Standard (prEN) to CEN (European Committee for Standardization) for formal vote and transformation to full European Standard (EN). The CEN national members have then to implement the EN at national level by giving the EN the status of a national standard and by withdrawing a
6、ny national standards conflicting with the EN. Edition approved for publication 28 February 2005 Comments should be sent within six months after the date of publication to AECMA-STAN Non-metallic Material Domain Copyright 2005 O by AECMA-STA! Page 2 prEN 441 52005 Foreword This standard was reviewed
7、 by the Domain Technical Coordinator of AECMA-STANS Non-metallic Material Domain. After inquiries and votes carried out in accordance with the rules of AECMA-STAN defined in AECMA- STANS General Process Manual, this standard has received approval for Publication. Contents Page O Introduction . 1 Sco
8、pe 2 Normative references . 3 Definitions and abbreviations 4 Requirements 5 Qualification 6 Release testing 7 Preparation for delivery . 8 Declaration of conformity Annex A (normative) Table of testing requirements Annex B (normative) Defects Annex C (informative) Dyed textiles . . . 3 3 3 4 5 9 9
9、11 12 13 14 16 Page 3 prEN 441 5:2005 O Introduction This standard is part of the series of EN non-metallic material standards for aerospace applications. The general organisation of this series is described in EN 4385. This standard is a level 2 document as defined in EN 4385. This standard has bee
10、n prepared in accordance with EN 4387. 1 Scope This standard defines the requirements for manufacture, inspection and testing of narrow woven fabrics for aerospace applications. 2 Normative references This European Standard incorporates by dated and undated references, provisions from other publicat
11、ions. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of the publications apply to this European standard only when incorporated in it by amendment or revision. Fo
12、r undated references the latest edition of the publication referred to applies. IS0 105-BO2 IS0 105-E01 IS0 105-XI2 IS0 2060 IS0 2061 IS0 2062 IS0 3801 IS0 5084 IS0 8498 IS0 13934-1 Textiles - Tests for colour fastness - Part B02: Colour fastness to artificial light: Xenon arc fading lamp test Texti
13、les - Tests for colour fastness - Part 01: Colour fastness to water Textiles - Tests for colour fastness - Part X12: Colour fastness to rubbing Textiles - Yarn from packages - Determination of linear density (mass per unit length) by the skein method Textiles - Determination of twist in yarns - Dire
14、ct counting method Textiles - Yarns from packages - Determination of single-end breaking force and elongation at break Textiles - Woven fabrics - Determination of mass per unit length and mass per unit area Textiles - Determination of thickness of textiles and textile products Woven fabrics - Descri
15、ption of defects - Vocabulary Textiles - Tensile properties of fabrics - Part 1: Determination of maximum force and elongation at maximum force using the strip method ISO/IEC Guide 22 General criteria for suppliers declaration of conformity EN 1049-2 Textiles - Woven fabrics - Construction - Methods
16、 of analysis - Part 2: Determination of number of threads per unit length EN 1773 Textiles - Fabrics - Determination of width and length EN 2000 Aerospace series - Quality assurance - EN aerospace products - Approval of the qualify system of manufacturers EN 3042 Aerospace series - Quality assurance
17、 - EN aerospace products - Qualification procedure Page 4 prEN 441 5:2005 EN 4385 EN 4387 EN 4426 EN 4429 EN 4503 EN 4504 EN 4505 EN 4507 EN 12562 EN 20139 TR 7000-1 Aerospace series - Non-metallic materials - General organisation of standardisation - Links between types of standards 1) Aerospace se
18、ries - Non-metallic materials - Rules for drafting and presentation of technical specifications 1) Aerospace series - Non-metallic materials - Textiles - Test method - Determination of conductivity and pH of aqueous extracts 1) Aerospace series - Textiles - Testing of narrow woven fabrics - Determin
19、ation of warp bow 2) Aerospace series - Non-metallic materials - Textiles - Test method - Determination of water soluble chloride and sulfate of aqueous extracts 1) Aerospace series - Non-metallic materials - Textiles - Test method - Determination of flexibility of narrow fabrics 1) Aerospace series
20、 - Textiles - Test method - Determination of dimensional stability 1) Aerospace series - Non-metallic materials - Textiles - Test method - Determination of water extractable matter 1) Textiles - Para-aramid multifilament yarns - Test methods Textiles - Standard atmospheres for conditioning and testi
21、ng Aerospace series - Non-metallic materials - Rules for the drafting and presentation of material standards - Part 1: General rules 3) 3 Definitions and abbreviations 3.1 Definitions For the purpose of this standard the definitions in EN 2000 and EN 3042 apply. In addition the following definitions
22、 are applicable. 3.1.1 Batch 3.1 .I .I loomstate fabric for loomstate fabric, both a Production Batch and an Inspection Batch are the quantity of fabric produced from one weavers beam or one continuously woven length not exceeding 20 O00 metres, provided that weft yarn of consistent and proven quali
23、ty has been used If a fresh delivery of weft yarn of unproven quality is introduced during weaving the warp, a fresh NOTE batch has been created. 3.1.1.2 piece treated fabric a Finishers Batch is that which comprises one or more loomstate Production Batches, possibly comprising more than one type of
24、 fabric, subject to piece treatment under the same conditions, within the same operation. An Inspection Batch is the quantity of fabric of the same type, from one loomstate Production Batch. If several loomstate Production Batches are brought together during the finishing process to form one NOTE la
25、rge Finishers Batch, due note should be taken of the need to maintain identification of each individual batch. 1) Published as AECMA Prestandard at the date of publication of this standard 2) In preparation at the date of publication of this standard 3) Published as AECMA Technical Report at the dat
26、e of publication of this standard Page 5 prEN 4415:2005 3.1.2 defect a fault that would reduce the expected performance of the fabric or, if it appeared in a prominent position in an article made from the fabric, would readily be seen and rejected by a prospective purchaser. For definitions of speci
27、fic defects refer to IS0 8498. 3.1.3 fabric a manufactured assembly of fibres and / or yarns that has substantial surface area in relation to its thickness and sufficient mechanical strength to give the assembly inherent cohesion 3.1.4 manufacturer the firm making the material into the form (yam, lo
28、omstate fabric, finished fabric, etc.) in which it is consigned to the purchaser 3.1.5 narrow woven fabric a fabric woven at 450 mm width or less between selvedges and not obtained by slitting wide fabric 3.1.6 product in this document the word product refers to all forms of narrow woven fabric 3.1.
29、7 purchaser the body which purchases the product from a manufacturer or a stockist in accordance with the requirements of the user NOTE The purchaser may also be the user. 3.1.8 supplier the firm consigning the material to the purchaser NOTE The supplier may be either the manufacturer or the stockis
30、t. 3.1.9 textile any fabric (however constructed), sewing thread or cordage made from natural or man made fibres and / or yarns, and blends of these 3.2 Abbreviations Not applicable 3.3 Conventions Not applicable 4 Req u remen ts 4.1 4.1 .I Manufacturing schedule The product shall be manufactured to
31、 fulfil the requirements of the relevant material standard and this technical specification. The manufacturer shall define the raw material, processes and inspection requirements in a manufacturing schedule. Ge ne ral req u i remen ts Page 6 prEN 441 5:2005 Nominal width mm Less than 12 12 to less t
32、han 55 55 and over 4.1.2 Traceability All products shall be traceable to the raw material batches at all stages of manufacture and delivery. Similarly, each raw material batch shall be traceable to all products at all stages of manufacture and delivery. Tolerance mm I l,o I1,5 14%a 4.1.3 Freedom fro
33、m defects All products shall be free from defects not complying with the requirements of the material standard or order and this technical specification, or which may be prejudicial to the subsequent manufacture and/or use of the products. The requirements for freedom from defects are given in Annex
34、 B of this specification. 4.1.4 Health and safety It is the responsibility of the supplier to establish satisfactory health and safety information to ensure conformity with any European, National or local lawdregulations. 4.1.5 Dimensions 4.1.5.1 General Dimensions and tolerances shall conform to th
35、e requirements of the order or drawing and unless otherwise specified in the individual material standard, with subclauses 4.1 5.2 to 4.1 5.4. If loomstate fabric is subsequently to be processed, e.g. scoured, dyed or coated, allowance should NOTE be made for the consequent shrinkage. 4.1.5.2 Width
36、When measured in accordance with the test method listed in Annex A, the width of the fabric shall be as specified in the individual material standard, with the tolerances given in Table 1. 4.1.5.3 Length The length of each roll of the product shall be: - not less than 100 m for fabric weighing 50 g/
37、m or less; - not less than 50 m for fabric weighing more than 50 g/m NOTE Length measurement by means of a roller counter has been found suitable. In each roll there shall be not more than four cuts per 100 m which shall not be joined by pins, metal fasteners or other means. No individual part shall
38、 be less than 10 m long. The total number of cuts in a consignment shall not exceed four times the number of rolls for fabrics of 50 g/m or less, or twice the number of rolls for fabrics exceeding 50 g/m. 4.1.5.4 Warp bow When measured in accordance with the test method listed in Annex A, the warp b
39、ow shall not exceed 10 mm/m length. Page 7 prEN 4415:2005 4.1.6 Manufacture 4.1.6.1 The narrow woven fabric shall be uniformly manufactured. 4.1.6.2 The edges shall be straight and even. 4.1.6.3 thicker than the body of the fabric. If the edge structure is not specified in the material standard, the
40、 edges shall not be substantially NOTE Certain weaving processes generate selvedges that may be slightly thicker than the body of the fabric. Any difference in thickness should be kept to a minimum so as not to hinder the subsequent manufacturing process. 4.1.6.4 approved for aerospace use: a) Conve
41、ntional (.e. woven on a shuttle loom) b) Shuttleless with the weft locked by a thread inserted from a “bobbin”, the locking thread engaging with the weft within the body of the webbing at not less than 8 warp ends from the selvedge. c) Shuttleless with the weft knitted at one selvedge with a locking
42、 thread. d) Shuttleless with the weft secured at one selvedge by two knitted locking threads. The weaving process shall be as specified in the material standard and shall be one of the following NOTE is the responsibility of the equipment design authority. The suitability of a weaving process for a
43、narrow woven fabric for a particular equipment application 4.1.6.5 spaced in the width of the fabric. In fabric of multi-ply construction containing binder warp threads, the binders shall be uniformly 4.1.7 Dyed textiles 4.1.7.1 Dyestuffs Sulfur dyes and dyes known to accelerate actinic damage shall
44、 not be used (see Annex C). 4.1 -7.2 Colour fastness Unless otherwise stated in the material standard, the following minimum colour fastness ratings shall apply when tested in accordance with the test methods listed in Annex A, of this specification; a) Cellulosic Fastness to light Fastness to water
45、 Fastness to rubbing 5 3 (change of colour) 3 (staining adjacent fabric) 4 (dry staining) 3 (wet staining) b) Wholly or partly synthetic Fastness to light 4 Fastness to water Fastness to rubbing 4 (change of colour) 4 (staining adjacent fabric) 4 (dry staining) 3 (wet staining) The test for fastness
46、 of colour to light shall be a Type Test (see Clause 5). Page 8 prEN 441 5:2005 4.1.8 Freedom from corrosive impurities 4.1.8.1 method listed in Annex A, of this specification, the result shall not exceed 15 mS/m. When tested to determine the conductivity of an aqueous extract in accordance with the
47、 test 4.1.8.2 If the conductivity of the aqueous extract exceeds 15 mS/m e.g. owing to the presence of adventitious conducting, but not specially corrosive material, then the following shall apply, when tested in accordance with the test methods listed in Annex A,: a) the pH value of the aqueous ext
48、ract shall be not less than 5,O nor more than 8,0, b) the percentage of water soluble chloride expressed as sodium chloride, shall not exceed 0,lO %, c) the percentage of water soluble sulfate expressed as anhydrous sodium sulfate, shall not exceed 0,25 %. 4.1.9 Yarn 4.1.9.1 The yarn(s) used in the
49、manufacture of the product shall be as specified in the material standard. 4.1.9.2 Unless otherwise stated in the material standard the properties of the yarn(s) shall be determined in accordance with the test methods listed in Annex A of this specification. The results of the tests shall conform to the requirements specified in the material standard. 4.1.9.3 The yarn tests shall be Type Tests (see Clause 5). 4.1 .IO Construction 4.1.10.1 The product shall be constructed as specified in the material standard. 4.1.10.2 Unless otherwise stated in the material standard the
