ISO 7268 AMD 1-1984 Amendment 1-1984《管道元件 公称压力的定义 修改1》.pdf

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1、NORME INTERNATIONALE ISO 7268=1983/AMENDEMENT 1 Publi 1984-07-15 INTERNATIONAL ORGANIZATION FOR STANDARDIZATION.MEX)(nYHAPOHAR OPrAHM3ALJMfl fl0 CTAHAPTM3AL&lMRGANISATION INTERNATIONALE DE NORMALISATION Tuyauterie - Dfinition de la pression nominale AMENDEMENT 1 Pipe components - Definition of nomin

2、al pressure Amendment 7 LAmendement 1 la Norme internationale BO 72684983 a t labor par le comit technique ISO/TC 5, Tuyauteries en mtaux ferreux et raccords mta/iques. II a t soumis directement au Conseil de IISO, conformment au paragraphe 6.11.2, partie 1 des Directives pour les travaux techniques

3、 de NSO. Page 1 Chapitre 2 Dfinition Remplacer le texte par le suivant : I pression nominale (PN) : Dsignation numrique exprime par un nombre arrondi utilis des fins de rfrences. Tous les quipements de mme diamtre nominal (DN) dsigns par le mme numro de PN doivent avoir des dimensions de raccor- dem

4、ent compatibles. NOTES 1 La pression maximale admissible dpend des matriaux, de la conception de llment et des tempratures en service, elle devrait tre choisie dans les tableaux de relations pressionhemprature figurant dans les normes appropries. 2 Elle est dsigne par PN suivi par le numro de rfrence appropri. CDU 621 X43.4 : 532.11 Rf. no : ISO 7268/DAM l-1983/Al-1984 (F) Descripteurs : tuyauterie, tube mtallique, bride de tuyauterie, pression, dfinition, caractristique nominale. . 0 Organisation internationale de normalisation, 1984 l Imprim en Suisse Groupe de prix A Page blanche

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