Le materie plastiche: criteri di selezione per l uso in prodotti finiti Ilaria Nicoli Sales Account Executive Roberta Zaffaroni Engineering Team Leader 15 Novembre 2007 Copyright 1995-2007 Underwriters Laboratories Inc. All rights reserved. No portion of this material may be reprinted in any form without the express written permission of Underwriters Laboratories Inc. or as otherwise provided in writing.
Chi è UL Underwriters Laboratories Inc (UL) è un organismo indipendente e not-for-profit che si occupa di certificazione e test di sicurezza elettrica Dal1894, anno di fondazione, UL ha maturato la reputazione di leader globale nello svilluppo di Standard di sicurezza, test e certificazioni 1891 Rayon 1907 Bakelite 1913 Cellophane 1926 PVC 1933 Polyethylene (PE) 1945 Acrylic 1953 Polypropylene (PP) 1958 Polycarbonate (PC) 1964 PPO 1971 PBT Today 2007 1862 Parkesine 1866 Celluloid 1905 Synthetic Rubber 1934 Fiber 66 1941 UL RB #22 1972 UL 94, 1 st Ed. 1973 QMFZ2 p/4
La presenza del marchio UL o UR su un prodotto indica che Underwriters Laboratories ha testato campioni rappresentativi di tale prodotto e li ha giudicati conformi ai requisiti degli Standard applicabili rispetto ai suoi potenziali: Rischi di shock elettrico Rischi d incendio Rischi meccanici p/5
Marchi UL per USA e Canada Listing Mark Si applica a prodotti finiti che possono essere installati senza ulteriori test. Recognized Component Mark Si applica ai componenti (plastiche, motori, sistemi d isolamento ) p/1
Marchi internazionali Nord America Europa EU Notified Body LVD, MD, EMC Programma RSCS Compliance RoHS Directive International Medicali EU Notified Body US FDA Access Qualità ISO9000, ISO14000 ISO13485, ISO/TS16949 OSHAS18001, QS9000 p/7
Settore Consumer HAL: elettrodomestici, illuminazione, HVAC Hi-Tech: Information Technology Equipment, Consumer Electronics, Telecom Medicali Qualità p/8
Settore Industrial CPC: Componenti, Cavi, Plastiche e Materiali Isolanti Power: Industrial Control Equipment, Power Distribution Energie Alternative Gas & Oil Hazardous Locations p/9
Dal componente al prodotto finito Le norme UL per i materiali plastici UL 94 UL 746A UL 746B UL 746D UL 746C p/10
Come scegliere il materiale migliore Quali sono le proprietà importanti in questa specifica applicazione? Quali sono i requisiti minimi accettabili per un materiale, utilizzato in un prodotto finito specifico, con una specifica costruzione? Quali fonti informative possono essere utilizzate per ottenere dati tecnici oggettivi su uno specifico materiale? p/11
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Rating UL e ASTM p/13
Rating IEC e ISO p/14
Flammability (UL 94) HB V-0, V-1, V-2 5VA, 5VB HF-1, HF-2, HBF VTM-0, VTM-1, VTM-2 Radiant Panel p/15
ANSI/UL ASTM CSA IEC ISO 94 HB D635 HB C22.2 No. 0.17 HB * 60695-11-10(A) HB, HB40, HB75 94 V-0, V-1, V-2 D3801 V-0,V-1,V-2 C22.2 No. 0.17 V-0, V-1, V-2 60695-11-20(B) V-0, V-1, V-2 94 5VA, 5VB D5048 5VA, 5VB C22.2 No. 0.17 5VA, 5VB 60695-11-20 5VA, 5VB 94 VTM-0, -1, -2 D4804 VTM-0, -1, -2 C22.2 No. 0.17 VTM-0, -1, -2 9773 VTM-0, -1, -2 94 HBF, HF-1, -2 D4985 HBF, HF-1, -2 C22.2 No. 0.17 HBF, HF-1, -2 9772 HBF,HF-1,-2 p/16
Horizontal Burning Test; HB 30 sec flame application or when 25 mm line is reached. Observe burning rate Specimen 20 mm Flame Blue cone Wire Gauze 98% Technical Grade methane p/17
20 mm Vertical Burning Test; V-0, V-1, V-2 Same flame as HB Vertically oriented sample Cotton indicator @ 300 mm Two - 10 sec. flame applications Observe flame/glow time cotton indicator extent of burn 10-mm Gap Specimen p/18
125 mm Vertical Burning Test; 5VA, 5VB Bar testing 5 flame applications (5 on, 5 off) Observe flame/glow and cotton indicator Bar Sample 20 125-mm Flame 40-mm Inner Cone p/19
125 mm Vertical Burning Test; 5VA, 5VB Plaque testing 5 flame applications (5 on, 5 off) Specimens 150 ± 5 x 150 ± 5 x min thickness Observe hole formation 125-mm Flame 40-mm Inner Cone p/20
Glow Wire Test (UL 746A, IEC 60695-2-10/13) Nickel-chrome wire formed into specific shape Wire is heated to pre-determined temperature Applied to sample with 1.0 N force p/21
GWFT Highest test temperature, during three subsequent tests for a test specimen of a given thickness, at which one of the following conditions are fulfilled: a) Flames or glowing of the test specimen extinguish within 30 s after removal of a glow-wire and there is no ignition of the wrapping tissue placed underneath the test specimen; b) There is no ignition of the test specimen. GWIT Temperature is 25 K (30 K between 900 C and 960 C) higher than the maximum temperature of the tip of the glow wire which does not cause ignition of a test specimen of given thickness during three subsequent tests p/22
Glow Wire (UL 746A) p/23
Contatti UL International Italia S.r.l. Via Archimede, 42 I - 20041 Agrate Brianza (Mi) Tel: +39 039 64 10 101 Fax: +39 039 64 10 600 E-mail: info.it@it.ul.com Ilaria Nicoli Sales Account Executive - Industrial Products Tel: +39 039 64 10 173 - Mobile: +39 348 97 32 876 E-mail: Ilaria.Nicoli@it.ul.com Roberta Zaffaroni Engineering Team Leader Tel: +39 039 64 10 141 E-mail: Roberta.Zaffaroni@it.ul.com Cristina Canni Ferrari Marketing & Communications Tel: +39 039 64 10 129 - Mobile: +39 347 07 40 922 E-mail: Cristina.CanniFerrari@it.ul.com p/24