G/TBT/N/MEX/476  
16 September  2020 
(20-6207) Page: 1/3 
Committee on Technical Barriers to Trade  Original:  Spanish  
 
  
NOTIFICATION  
The following notification is being circulated in accordance with Article 10.6.  
 
1. Notifying Member : MEXICO  
If applicable, name of local government involved (Articles 3.2 and 7.2):  
2. Agency responsible : Secretaría de Economía (Ministry of the Economy) , Dirección 
General de Normas  (Directorate -General of Standards)  
Name and address (including telephone and fax numbers, email and website 
addresses, if available) of agency or authority designated to handle comments 
regard ing the notification shall be indicated if different from above:  
Calle Pachuca número 189, pisos 7 y 12, Colonia Condesa, Demarcación Territorial 
Cuauhtémoc, Código Postal 06140, Ciudad de México, Mexico  
Tel.: (+52) 5729 9100, Ext. 13217/13264  
Email : César Osvaldo Orozco Arce cesar.orozco@economia.gob.mx  / Tania Daniela 
Fosado Soriano tania.fosado@economia.gob.mx  
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) : Articles of 
gold, silver, platinum and palladium  
5. Title, number of pages and language(s) of the notified document : Proyecto de 
Norma Oficial Mexicana PROY -NOM-033/1 -SCFI-2019, Artículos de oro, plata, platino y 
paladio -Parte 1 -Información comercial y métodos de análisis (cancelará a la N OM-033-
SCFI-1994)  (Draft Mexican Official Standard PROY -NOM-033/1 -SCFI-2019, Articles of 
gold, silver, platinum and palladium - Part 1 - Commercial information and methods of 
analysis (will cancel Mexican Official Standard NOM -033-SCFI-1994)  (35 pages, in 
Spanish)  
6. Description of content : The notified Mexican Official Standard establishes 
specifications, test methods and commercial info rmation for articles partly or entirely 
made of or coated with gold, silver, platinum and palladium that are imported into , 
produced and/or marketed in Mexican territory.  
Watches, pens, lighters, glasses and metallic fittings, components, parts and accesso ries 
for jewellery items are excluded from the scope of the text . 
Any product  that, even where not consistent with the description or names contained in 
the text , alludes to the products in question, whether through information provided to 
consumers in gen eral or through advertising of any sort, regardless of medium, or through 
text, dialogue, sounds, images, marks or other descriptions that lead or may lead 
consumers to believe that such products are articles made of gold, silver, palladium and 
platinum, r egardless of the name used for th e products, will also be covered by the scope 
of the text and thus evaluated in accordance therewith, and may be considered in violation G/TBT/N/MEX/476  
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  of the text's  provisions where not in conformity with the parameters, characteristics,  
controls, processes and requirements provided for in this mandatory technical regulation.  
7. Objective and rationale, including the nature of urgent problems where 
applicable : Consumer information, labelling ; Prevention of deceptive practices and 
consumer protection  
8. Relevant documents:  
• Mexican Standard NMX -EC-17025 -IMNC -2018: Requisitos generales para la 
competencia de los laboratorios de ensayo y calibración (Cancelará a la NMX -
EC-17025 -IMNC -2006) . Notice of entry into force published in the Official 
Journal on 9 August 2 018. 
• ISO 11426 :2014 , Jewellery -- Determination of gold in gold jewellery alloys -- 
Cupellation method (fire assay).  
• ISO 13756 :2015 , Jewellery -- Determination of silver in silver jew ellery alloys -- 
Volumetric (potentiometric) method using sodium chloride or potassium 
chloride.  
• ISO 11427 :2014, Jewellery -- Determination of silver in silver jewellery alloys -- 
Volumetric (potentiometric) method using potassium bromide.  
• ISO 11490 :2015, Jewellery -- Determination of palladium in palladium jewellery 
alloys -- Gravimetric determination with dimethylglyoxime.  
• ISO 11494 :2014 , Jewellery - Determination of platinum in platinum jewellery 
alloys - ICP-OES method using yttrium as internal standard  element.  
• ISO 11495 :2014 , Jewellery - Determination of palladium in palladium jewellery 
alloys - ICP-OES method using yttrium as internal standard element.  
• ISO 11210 :2014 , Jewellery -- Determination of platinum in platinum jewellery 
alloys -- Gravimetric method after precipitation of diammonium 
hexachloroplatinate.  
• ISO 14595 :2014 , Microbeam analysis - Electron probe microanalysis - 
Guidelines for the specification of certified reference  materials (CRMs).  
• ISO 14594 :2014 , Microbeam analysis - Electron probe microanalysis - 
Guidelines for the determination of experimental parameters for wavelength 
dispersive spectroscopy.  
• ISO 3497 :2000 , Metallic coatings - Measurement of coating thickness - X-ray 
spectrometric methods.  
• ISO 3166 -1:2013 , Codes for the representation of names of countries and their 
subdivisions - Part 1 : Country codes.  
• ISO 16700 :2016 , Microbeam analysis - Scanning electron microscopy - 
Guidelines for calibrating image magnification.  
• ISO 15632 :2012 , Microbeam analysis - Selected instrumental performance 
parameters for the specification and checking of energy -dispersive X -ray 
spectrometers for use in electron probe microanalysis.  
• ISO 9220 :1988 , Metallic coatings -Measurement of coating thickness -Scanning 
electron microscope method, First edition  (Sept ember  1988).  
9. Proposed date of adoption : To be determined  
Proposed date of entry into force : To be determined  
10. Final date for comments : 60 days from notification  G/TBT/N/MEX/476  
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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:  
Secretaría de Economía , Dirección General de Normas  
Calle Pachuca número 189, pisos 7 y 12, Colonia Condesa, Demarcación Territorial 
Cuauhtémoc , Código Postal 06140, Ciudad de México, Mexico  
Tel.: (+52) 5729 9100, Ext. 13217/13264  
Email : César Osvaldo Orozco Arce cesar.orozco@economia.gob.mx  / Tania Daniela 
Fosado Soriano tania.fosado@economia.gob.mx  
 
Text available at:  
https://www.dof.gob.mx/nota_detalle.php?codigo=5600257&fecha=11/09/2020  
https://members.wto.org/crnattachments/2020/TBT/MEX/20_5487_00_s.pdf