norma nº 977/1988

   	  	 

 
 
  
!"#" $%&'"(")*%+,-&. / 001230  4567  

 8	9:;<=>=?@A@B=; CDEFGFHIJ KLMHNHOPQRFSLEEPHTUJVJTWXTIPRJRJYHJZEPMRF RJUJEIFWMJLTJRFTLPTPIEH[LH\JFT QF\PHTFRFPNJERJNJ]JTPEIH\JT ^_F ^` RPaFHbFRFEPQMc=d?e;f RF`gRF]PE\JRF`ch^W ijd`ckbHNPlDJRFEXmFNLIHVJPLIJEHnPRJPP[EHESEFRHIJ oRHNHJMPQpLOQF]FMIPEPIF_QH]HIF RFSnq``rh__r___W__stMnF]HQuJFTFTFHTNFM IJT]HQ NELnPRJTvWNJMGJE]FRF]JMTIEPIHVJPMFmJr ijdwckSJMTIHILHEFNLETJTOPEPPIFMRFE_SEFRHIJ NHIPRJ MJPEIH\J `cRPOEFTFMIFaFH_FmNFTTJRFoEEFNPRP\PJPOLEPRJPIFx_RF P[EHQ RF`cyyr oEIrxckXTIPaFHFMIEPEP F]Va\JEMPRPIPRFTLP OL[QHNz \PJWEFVJ\PRPTPTRHTOJTH\JFTF]NJMIEPEHJr DEFGFHILEPrKLMHNHOPQRFSLEEPHTUJVJTkDPQPNHJ {YP|QKPNFRJ{WF]`gRF]PHJRF`c}yyr

	  

  
 !" # $%&'"()* $++ )  ,- .'+'-'

/ 0112223456718229: ; < =>?@?A@@@BCD=E@@F@@= G H@I<I@JJKLKMLM@@E@ == NONO PQRSTTQUVWVXYQ ZQ[\TWX] ^Q]]XV_] ````````````` NONa b cdeUX] ZQTf_WX] QghiVUWX] ``````````````````` jOak b gfd_lVmQheX] QnVeQU_VT ^QUmVhQheQ ``````````` o8pq1r2211:s 5tuv144: w. ++x, .+,yyz{  &&..!|!,-'}~ -+  €‚ ‚‚‚ƒƒ €„‚‚ G…1s†‡ ~ „‚ƒ‚ƒ‚ƒƒƒ‚‚ˆ ‚€ ƒ NONO b PQmdhQUVWVX YQ ZQU\_WX] ^Q]]XV_f ````````````` NONa b ‰deUX] ZQU\_WX] QgŠiVUWX] `````````````‹````` - (Œ$(y$ 
)ŽŽz .(w!+
 NOak b nVeQU_VT YQ ‘Xh]dmX `````````````````````````` NONO UeQhŠ’fQUVVXYQ ZQU_WX] ^Q]]Xf_] ````````````` NONa ‘deUX] ZQU\_k] QRhiVUWX] ``````````````````` Na•O b dUX] YV \_YV ‰XheUVeVYV ‹`f``‹`‹`‹‹‹‹``````` jN™O šmXUe_›VWVX YV h_\_YV SXheUVeVYV ````````````` ‹NOakb œVeQU_VT YQ ‰Xh]dmX `````````````````````````` NONa b cdeUi] ZQU\_WX] QghifWX] `````````````````` 
-(žŽ ($Ÿ(-  Ž$Œ NOak b nVeQU_VT YQ ‰Xh]dmX ``````‹``````````````````` NONO b PQmSŠfQUVWVXYQ ZQU\_WX] ^Q]]XV_] ````````````k "% . . ,ž ¡- &yy)} y
" …06666 ;1161220¢sH 66£8 ¤
&y  } . +!y ¥s
,9	 ¦ H§942s:s¦:1:†††H¥…t¨ ¤ ©z <ª@L@@?<<@@@@@« ¬ ­¤ --®| ¯°±¯¯¯²³´°µµ¯ N¶ak œVeQU_VT YQ ‰Xh]bdmX```````k`````````````````` NONa cdeUX] ZQUU_WX] QghiVUWX] ``````````````````` 1 † jOOk c·UV] Q fh]eVTV¸XQ] `````````````````````````` s0 6s1† ¹$º +  ¹
+  &- N•k‹kkk»k ¼½™a
¾¿ À Á'
  Nkk‹kkk» ‹Â ‹‹Ã »Q‹ Ăs s ‹akk‹kkk»k Nkk‹kkk»k OÅOÂajk‹jkj»¶¶ÆÇȂÉÈɀÊË Âkk‹kkk» Nkk‹kkk»k akk‹kkk»k ja‹Ìa»c‰ ÍÎÏÐÑÐÒÓÔÕÖ akk‹kkk» Oak‹kkk»k ™k‹kkk»XQ 
¿××Ø'&+ ‚ÙڂÛÜÈڀÝÞ Okk‹kkk» ‹akk‹kkk»k ߇
Ž Ÿ¿&Áà NNá‹NkO»™½ jkk‹kkk» akk‹kkk»k ™k‹kkk»k aOO‹‘S»k ÔâÏÔããÕÎ Okk‹kkk» Okk‹kkk»k ™k‹ak»j j‹k»™ ™k‹kkk» Oakfkkk»k akk‹kkk»k NO‹™OO»k jeO»k akk‹kkk» ‹‹N‹kkk»k ÏäåäÏæçÔÕèÍ ‹‹‹jkkbk™•»jO‹kkk‹kkk» f‹káO‹kkk»c N‹Ojj‹aj» ‹N•‹k™»a a`‹kkk‹kkk» OOk‹kkk»k Okk‹kkk»k Ok‹ÅNNá»k ‹O•a»k Okk‹kkk»Å NNk‹kkk»k Okk‹kkk»k NkO‹jO»k Oaa‹k™N»k ™k‹kkk»Å ™kk‹kkk»k O™k‹kkk»kk jak‹`•k•»»•k ak‹NN»j Okk‹kkk»Å Nkk‹kkk»k OááÅÃáj•áj OOTkO™N»O akk‹kkk»Å fáak™N»O™ ÁØàØà؇&à‡ ‹Ojj‹áa»a ‹™kk‹kkk»k -
 kkk‹kkk»V ‹`kkk‹kkk»k ‹k c] UQidU]X] lVUV Q]eV ZdlTQ]eVWVX» ékQêiQ]]X YQ šUfQiVYVVX ë!ìí %ë ¹w - Œ+...
+ -.× îïðñ é
ž .­ž+ò 
+."ë'+"+é ó$¹)Œ! 
¿Œ