G/TBT/N/ECU/436/Rev.2  
29 October  2020 
(20-7563) Page: 1/3 
Committee on Technical Barriers to Trade  Original:  Spanish  
 
  
NOTIFICATION  
Revision  
The following notification is being circulated in accordance with Article 10.6.  
 
1. Notifying Member : ECUADOR  
If applicable, name of local government involved (Articles 3.2 and 7.2):  
2. Agency responsible:  
Servicio Ecuatoriano de Normalización , INEN (Ecuadorian Standardization Service)  
Calle Baquerizo Moreno E8 -29 y Diego de Almagro  
Tel.: (+593 -2) 3825960 to 90  
Website: www.normalizacion.gob.ec  
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:  
Subsecretaría de Calidad (Under -Secretariat for Quality)  
Ministerio de Producción, Comercio Exterior, Inversiones y Pesca , MPCEIP (Ministry of 
Production, Foreign Trade, Investment and Fisheries)  
Av. Amazonas entre Unión Nacional de Periodistas y Alfonso Pereira, Piso 8, Bloque 
amarillo  
Tel.: (+593 2) 3948760, Ext. 2254 - 2272 
Email: Puntocontacto -OTCECU@produccion.gob.ec ; PuntocontactoOTCECU@gmail.com ; 
jmarino@produccion.gob.ec ; cyepez@produccion.gob.ec ; jsanchezc@produccion.gob.ec  
Website: www.produccion.gob.ec  
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) : Safety or 
relief valves (HS 848140) ; Taps, cocks, valves and similar appliances for pipes (excluding 
pressure -reducing valves, valves for oleohydraulic or pneumatic transm issions, check 
(nonreturn) valves and safety or relief valves) (HS 848180)  
5. Title, number of pages and language(s) of the notified document : Proyecto de 
Primera Revisión del Reglamento Técnico Ecuatoriano RTE I NEN 235  (1R) "Válvulas de 
seguridad"  (Draft  first revision (1R) of Ecuadorian Technical Regulation RTE INEN No. 235 
"Safety valves") (10 pages, in Spanish)  
6. Description of content : The notified Ecuadorian Technical Regulation establishes the 
requirements to be met by safety valves, prior to the marketing of domestic and imported 
products, with the aim of protecting human safety and preventing deceptive practices.  
It applies to the following products:  
• Safety valves, whether or not pilot operated;  G/TBT/N/ECU/436/Rev.2  
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  • Safety valves, regardless of the fluid for which they have been designed;  
• Safety valves with a fluid flow diameter of 6 mm or more that are used for set 
pressures of 0.01 MPa (0.1 manometric bar) and above . There is no temperature 
limit. 
It does not apply to : Deaerating and pressure -regulating valves used with liquid 
petroleum gas (LPG) and other inflammable compressed gases.  
7. Objective and rationale, including the nature of urgent problems where 
applicable : Consumer information, labelling ; Prevention of deceptive practices and 
consumer protection ; Protection of human health or safety  
8. Relevant documents:  
Normative references:  
1. ISO 2859 -1:1999/ AMD 1 :2011, Sampling procedures for inspection by attributes 
- Part 1 : Sampling schemes indexed by acceptance quality limit (AQL) for lot -by-
lot inspection.  
2. ISO 4126 -1:2013/ AMD 1 :2016, Safety devices for protection against excessive 
pressure - Part 1 : Safety valves.  
3. ISO 4126 -4:2013, Safety devices for protection against excessive pressure - Part 
4: Pilot operated safety valves.  
4. ISO/IEC 17025 :2017, General requirements for the competence of testing and 
calibration laboratories.  
5. ISO/IEC 17050 -1:2004, Conformity assessment - Supplier's declaration of 
conformity - Part 1 : General requirements.  
6. ISO/IEC 17067 :2013, Conformity assessment - Fundamentals of product 
certification and guidelines for product certification schemes.  
7. ISO 21013 -1:2008, Cryogenic vessels - Pressure -relief accessories for cryogenic 
service - Part 1 : Reclosable pressure -relief valves.  
8. EN 13648-1:2008, Cryogenic vessels - Safety devices for protection against 
excessive pressure . Part 1: Safety valves for cryogenic service.  
9. API 526 :2017/Errata 1:2018, Flanged Steel Pressure -relief Valves.  
10. ASME B16.34 - 2017, Valves - Flanged, Threaded, and We lding End.  
11. ASME Boiler and Pressure Vessel Code, Section VIII : Rules for construction of 
pressure vessels, Division I : 2013. 
Notification history:  
G/TBT/N/ECU/436  
G/TBT/N/ECU/436/Rev.1/Add.1  
9. Proposed date of adoption : 30 days  
Proposed date of entry into force : Six months from the date of adoption  
10. Final date for comments : 30 days from notification  G/TBT/N/ECU/436/Rev.2  
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  11. Texts available from : National enquiry point [X] or address, telephone and fax 
numbers and email and website addresses, if available, of other body:  
Contact and/or national enquiry point:  
Subsecretaría de Calidad (Under -Secretariat for Quality)  
Ministerio de Producción, Comercio Exterior, Inversiones y Pesca , MPCEIP (Ministry of 
Production, Foreign Trade, Investment and Fisheries)  
Av. Amazonas entre Unión Nacional de Periodistas y Alfonso Pereira, Piso 8, Bloque 
amarillo  
Tel.: (+593 2) 3948760, Ext. 2254 - 2272 
Email: Puntocontacto -OTCECU@produccion.gob.ec ; PuntocontactoOTCECU@gmail.com ; 
jmarino@produccion.gob.ec ; cyepez@produccion.gob.ec ; jsanchezc@produccion.gob.ec  
www.normalizacion.gob.ec  
https://members.wto.org/crnattachments/2020/TBT/ECU/20_6535_00_s.pdf