Proposal for updating the legal inspectio n standards of Gas Stoves, Gas Ovens 
and Instantaneous Gas Water Heaters  
 
By the Bureau of Standards, Metrology and Insp ection (BSMI), Ministry of Economic Affairs 
 
 
Background: 
Currently, Gas Stoves, Gas Ovens and Instantaneous  Gas Water Heaters are subject to mandatory 
inspection by the Bureau of Standards, Metrolo gy and Inspection (BSMI). The BSMI will adopt the 
revised standards CNS 13603 ‘Gas burning water heaters for domestic use’ and CNS 13604 ‘Gas 
burning cooking appliances for domestic use’ (pro mulgated on March 25, 201 1), as new testing and 
inspecting standards, instead of the current  CNS 13603 and CNS 13604 (promulgated on September 
9, 2003).  
 
Proposed date of implementation: 
April 1, 2012 
 
Products (HS/CCCN codes) covered and th eir applicable inspection standards: 
C.C.C. Code (the 
first 6 digits are the 
same as HS Code) Description of Goods Revised Inspection 
Standards  Superseded Inspection Standards 
7321.11.00.00.5A  Cooking appliances and 
plate warmers, of iron or 
steel, for gas fuel or for both 
gas and other fuels 
(inspection scope: Gas 
Stoves and Gas Ovens) 
7321.81.00.00.0A Gas ranges, iron or steel 
(inspection scope: Gas 
Stoves and Gas Ovens) CNS 13604 “Gas 
burning cooking 
appliances for domestic 
use”, promulgated on 
March 25, 2011 CNS 13604 “Gas 
burning cooking 
appliances for domestic
use”, promulgated on 
September 9, 2003 
8419.11.00.00.6 Instantaneous gas water 
heater, non-electric CNS 13603 “Gas 
burning water heaters for 
domestic use”, 
promulgated on March 
25, 2011 CNS 13603 “Gas 
burning water heaters 
for domestic use”, 
promulgated on 
September 9, 2003 
 
Conformity Assessment Scheme 
The applicable conformity assessment schemes for th e products listed in the table are Registration of 
Product Certification (RPC) (Modul es II + IV , V or VII) and the Type-approved Batch Inspection 
(TABI). 
 
The procedures for the RPC and the TABI are as follows: 
1. Registration of Product Certificatio n (RPC) (Modules II + IV , V or VII) 
Under this procedure, domestic ma nufacturers or importers must have products type-tested by the 
BSMI or BSMI-recognized designated testing laboratories (Module II) before applying for registration of their products.  
 
For products applied with the Module IV or V procedures, the manufacturing facilities are 
required to have implemented ISO 9000 quality ma nagement system (fu ll quality management 
system (Module IV) or production quality management system (Module V)) certified by the 
BSMI or BSMI-recognized certifica tion bodies. As an alternative, manufacturers may establish a 
quality system that complies with the factory- inspection requirements s tipulated by the BSMI 
(Module VII) and obtain a factory inspection re port issued by the BSMI or BSMI-recognized 
factory inspection bodies. 
 
Products will be allowed to use a RPC certification mark after they are certified and registered 
with the BSMI. These imported products can then  pass through customs of entry directly without 
any further inspection. The RPC certi ficate is valid for three years. 
 
2. Type-approved Batch Inspection 
 
Under this procedure, the domestic manufacturer or importer shall have products type-tested by 
the BSMI or BSMI-designated test ing laboratories, and then file an application for Type Approval 
with the BSMI. 
 
After importers obtain type-approval certificates , they are required to file an application for 
inspection with the BSMI before th eir products arrive at the customs of entry. The BSMI will then 
review the application and accompanying documents  according to the simplified procedures, and 
additional sampling may be required, if necessa ry for further testing. The Type Approval 
certificate is valid for three years. 
 
Other requirements for the inspection procedures: 
1. The superseded inspection standards for the produc ts listed in the table will be not applicable 
from April 1, 2012. 
2. The holders of the RPC certificat es or the Type-approved (TA) cer tificates issued by the BSMI 
according to the superseded inspection standards must apply for replacing the certificates to 
conform to the revised standards before March 31, 2012. 
3. Beginning from April 1, 2012, Gas Stoves and Gas Ovens must comply with the standard CNS 
13604 (promulgated on March 25, 2011), and Instantaneous Gas Water Heaters must be in compliance with the standard CNS 13603(promulgated on March 25, 2011) except the Wet 
Insulation-Resistance and Timer regulate d in Clause 4 of that standard.