1、I l I O A.E.C.M .A. STANDARD NORME A.E.C.M.A. A.E.C.M.A. NORM prEN 2744 Edition 1 October 1990 EDITE PAR LASSOCIATION EUROPEENNE DES CONSTRUCTEURS DE MATERIEL AEROSPATIAL 88, boulevard Malesherbes, 75008 PARIS -TEL. 45-63-82-85 UDC : 620.22 : 620.1 -97 : 629.7 Key words : Aircraft industry, non meta
2、llic sections, preferred test temperatures. ENGLISH VERSION Aerospace series Non-metallic materials Preferred fest temperatures Srie arospatiale Matriaux non mtalliques Tempratures prfrentielles dessais Luft- und Raumfahrt Nichtmetallische Werkstoffe Vorzugcprftemperaturen This derospace series* sta
3、ndard has been drawn up under the responsibility of AECMA (Association Europenne des Constructeurs de Matriel Arospatial). It is published on yellow paper in three equivalent versions (English, French, German). It will be submitted as a draft European Standard to CEN (European Committee for Standard
4、ization) for final vote. I I The equivalent versions in French and German languages can be supplied by B.N.A.E. 8, rue Moreau-Vauthier I 92100 BOULOGNE-BILLANCOURT - FRANCE Approved by COMITE DE NORMALISATION of A.E.C.M.A. 1999-10-31 CEN PREN*2?4LI - 90 340YC89 - 000bBlO O prN 2744 Page 3 e 1 1 I t
5、I. I ! t O O 1 This standard specifies the preferred test temperatures for non-metallic materials. Scope and field of application 2 References EN 2743 Aerospace series - Reinforced plastics - Standard atmospheres for conditioning and testing 1) 3 Temperatures and tolerances See table. 1) In preparat
6、ion at the date of publication of the present: standard Previous page is blank CEN PRENx27Li4 90 W 3LiO4589 000680L 2 W prEN 2744 Page 4 Table Table (continued) Temperatures in OC - 249 - 196 - 161 - 70 - 65 1) - 62 1) - 55 - 54 1) - 50 1) - 40 - 35 1) - 25 - 20 1) - 18 1) - 15 1) - 10 O 2 1) 5 10 1
7、) 15 1) 23 2) 25 30 1) 37 1) 38 1) 40 45 1) 50 1) 55 60 70 80 82 85 90 100 105 110 110 125 130 1) 135 140 1) 150 155 1) 160 175 180 190 1) 200 Tolerances in K 3) +3 - Temperatures in OC 220 1) 225 230 1) 2 60 375 300 315 1) 320 1) 350 400 450 , 500 600 630 1) 700 750 1) 800 900 950 1) 1000 Tolerance
8、s in K 4- 10 - $. 15 - Notes : 1) Temperatures for particular fields. 2) For the temperatures of the standard atmospheres for conditioning and/or testing, EN 2743 specifies an ordinary tolerance of 2 2 K and a reduced tolerance of 2 1 K. 3) Below - 75“C, the tolerances essentially depend on the equipment used.
