G/TBT/N/EGY/160  
 
15 August 2016  
(16-4376) Page: 1/2 
Committee on Technical Barriers to Trade  Original : English  
 
  NOTIFICATION  
The following notification is being circulated in accordance with Article 10.6  
 
1. Notifying Member : EGYPT   
If applicable, name of local government involved  (Article 3.2 and 7.2) : 
2. Agency responsible:  
Egyptian Organization for Standardiza tion and Quality  
Address : 16 Tadreeb El -Modarreb een St., Ameriya, Cairo – Egypt  
E-mail: eos@idsc.net.eg /tbteos@eos.org.eg  
Website : http://www .eos.org.eg  
Tel.: + (202) 22845528  
Fax: + (202) 22845504  
Name and address (including telephone and fax numbers , email and website 
addresses, if available) of agency or authority designated to handle comments 
regarding the notification  shall be indicated  if different from above :  
3. Notified under Article 2.9.2 [ X], 2.10.1 [  ], 5.6.2 [  ], 5.7.1 [  ], other : 
4. Products covered (HS or CCCN where applicable, otherwise national tariff heading. 
ICS numbers may be provided in addition, where applicable) : Mechanical vibrations 
and shock (ICS : 27.040; 17.160)  
5. Title, number of pages  and language(s)  of the notified document : Ministerial Decree 
No. 243/2016 (2 pages, in Arabic) mandating the Egyptian Standards ES No. 4603 -4 for 
Mechanical vibration — Evaluation  of machine vibration by measurements on non -rotating 
parts – Part 4 : Gas turbine sets with fluid -film bearings (26 pages, in Arabic)  
6. Description of content : This Ministerial Decree mandates that the producers and 
importers must abide by ES 4603 -4. A t ransitional period of six months is given to abide 
by the Standard.  
This Standard establishes provisions for evaluating the severity of in -situ, broad -band 
vibration measured radial (i.e. transverse) to the shaft axis on all main bearing housings 
or pedes tals and in the axial direction on thrust bearings.  
These are in terms of:  
 vibration under normal steady -state operating conditions;  
 vibration during other (non -steady -state) conditions when transient changes are 
taking place, including run up or run down , initial loading and load changes;  
 changes in vibration which can occur during normal steady -state operation.  
This part of this Standard is applicable to heavy -duty gas turbine sets used in electrical 
and mechanical drive applications, with fluid -film bea rings, outputs greater than 3 MW and 
an operating speed range under load between 3 000 r/min and 30 000 r/min. This includes 
gas turbines coupled to other rotating machinery either directly or through a gearbox. In 
some cases, this part of this standard is  not applicable to the evaluation of the vibration of 
the coupled equipment (see the list of exclusions in this clause).  
Worth mentioning is that this standard complies with ISO:10816 -4:2009.  G/TBT/N/EGY/160  
 
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  7. Objective and rationale , including the nature of urgent prob lems where 
applicable : Human h ealth and consumer protection  
8. Relevant documents : 
 Decree No. 243/2016  
 ISO 10816 -4:2009  
9. Proposed date of adoption : 19 March 2016  
Proposed date of entry into force : 21 April 2016   
10. Final date for comments : 60 days fr om the date of the notification  
11. Texts available from : National enquiry point  [X] or address, telephone and fax 
number s and e mail and website address es, if available , of other body:  
Egyptian Organization for Standardization and Quality  
Address : 16 Tadr eeb El -Modarrebeen St., Ameriya, Cairo – Egypt  
Tel: (+202) 22845528  
Fax: (+202) 22845504  
E-mail: eos@idsc.net.eg /tbteos@eos.org.eg   
Website : http://www.eos.org.eg