1、ASD STANDARD NORME ASD ASD NORM prEN 3825 Edition P 1 July 2006 PUBLISHED BY THE AEROSPACE AND DEFENCE INDUSTRIES ASSOCIATION OF EUROPE - STANDARDIZATIONGulledelle 94 - B-1200 Brussels - Tel. + 32 2 775 8126 - Fax. + 32 2 763 3565 - www.asd-stan.orgICS: Descriptors: ENGLISH VERSION Aerospace series
2、Fluorosilicone rubber (FVMQ) Hardness 60 IRHD Srie arospatiale lastomre fluorosilicone (FVMQ) Duret 60 DIDC Luft- und Raumfahrt Fluorsilikon Elastomer (FVMQ) Hrte 60 IRHD This “Aerospace Series“ Prestandard has been drawn up under the responsibility of ASD-STAN (The AeroSpace and Defence Industries
3、Association of Europe - 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. Subsequent to the publication of this Prestandard, the technical content shall not be changed
4、 to an extent that interchangeability is affected, physically or functionally, without re-identification of the standard. After examination and review by users and formal agreement of ASD-STAN, it will be submitted as a draft European Standard (prEN) to CEN (European Committee for Standardization) f
5、or 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 any national standards conflicting with the EN. Edition approved for publication 31 July 20
6、06 Comments should be sent within six months after the date of publication to ASD-STAN Non-metallic Material Domain Copyright 2006 by ASD-STAN prEN 3825:2006 2 Contents Page Foreword2 1 Scope 3 2 Normative references 3 3 Application of the material3 3.1 General3 3.2 Typical use .3 3.3 Temperature ra
7、nge 3 4 Properties .3 5 Designation 5 6 Technical specification .5 Foreword This standard was reviewed by the Domain Technical Coordinator of ASD-STANs Non-metallic Material Domain. After inquiries and votes carried out in accordance with the rules of ASD-STAN defined in ASD-STANs General Process Ma
8、nual, this standard has received approval for Publication. prEN 3825:2006 3 1 Scope This standard specifies the properties of fluorosilicone rubber (FVMQ) 1), hardness 60 IRHD, for aerospace applications. 2 Normative references The following referenced documents are indispensable for the application
9、 of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 1629, Rubber and latices Nomenclature. ISO 1817, Rubber, vulcanized Determination of the effect of liquids. EN 3207,
10、Aerospace series Rubber compounds Technical specification. 3 Application of the material 3.1 General The suitability of the material for a specific application shall be determined by complementary tests carried out on the finished product as the properties specified in this standard are obtained fro
11、m standard test specimens. 3.2 Typical use In contact with petroleum based fluids, aviation fuels, hydraulic fluids, lubricants, greases, silicone oil and some ester based fluids (not phosphate esters). 3.3 Temperature range Continuous service: from 55 C to 180 C; Intermittent service: from 55 C to
12、200 C. 4 Properties See Tables 1 and 2. For qualification, all tests shall be performed. For batch acceptance, those identified “ shall be performed. 1) Symbol as per ISO 1629. prEN 3825:2006 4 Table 1 Test methods Column 1 2 3 Line Properties Units Requirements 1 Hardness IRHD 60 45+ 2 3 Density Mg
13、/m3a 4 5 Tensile strength MPa 5 min. 6 7 Elongation at break % 150 min. 8 9 Modulus at % strain MPa 10 11 Tear strength N/mm 12 13 Resistance to low temperatures TR10 C 55 max. 14 Crystallization Point 15 Compression set 15.1 After 70 h to 150 C 25 max. 15.2 After h to C % 16 17 Ozone resistance Ozo
14、ne concentration : ( ) pphm Elongation of test piece : % Time : h Temperature : C 18 19 Corrosion and adhesion on metals Time : h Temperature : C 20 Corrosion and adhesion on metals 20.1 Time : h Temperature : C Humidity : % 20.2 Time : h Temperature : C Humidity : % 30 39 See clause 4. aThe value d
15、etermined for each batch shall not differ from that determined at qualification by more than 0,02 Mg/m3. prEN 3825:2006 5 Table 2 Tests after exposure to test media Column Line 1 2 3 4 5 1 Test media Air Liquid B, see ISO 1817 Fluid 101, see ISO 18172 Conditions of exposure in test media Units 70 h/
16、200 C 70 h/23 C 70 h/150 C 3 Volume % + 25 + 12 4 Mass % 5 Tensile strength % 30 40 6 Elongation at break % 35 30 7 Permitted variation of the properties compared to the initial value Hardness IRHD 510+ 120See clause 4. 5 Designation EXAMPLE Description block RUBBER Identity block EN3825 Number of this standard 6 Technical specification EN 3207.
