Legal Inspection of Exhaust P ipes for Gas Water Heater s 
 
By the Bureau of Standards, Metrology and Inspection (BSMI), Ministry of Economic Affairs  
 
Background:  
In order to enhance the protection for consumers, the BSMI regulate s the inspection requirements for 
exhaust pipes for gas water heaters . The conformity assessment procedure for all such products will 
be the Registration of Product Certification or the Type Approved Batch Inspection . 
 
Date of implementation:  
1 July 2018 
 
Products (HS/CCCN codes) covered and their applicable inspection standard s: 
Description of Goods  Inspection Standards  Conformity Assessment 
Procedures  C.C.C. Code (the first 6 
digits being the same as 
HS Code)  (for 
Reference)  
Exhaust pipes for gas 
water heaters (i nspection 
scope: pipes made of 
stainless steel subject to 
CNS 15790)  CNS 15790(2015.02)  Registration of Product 
Certification (Module II 
and Module III) or Type 
Approved Batch 
Inspection  7306.40.00.00 -9 
7307.21.00.00 -1 
8307.10.00.00 -2 
The conformity assessment procedure s for the inspection scheme are as follows:  
1. Registration of Product Certification (RPC) Scheme(Module II+ III)  
Under this procedure, manufacturers must have their products type -tested by the BSMI or designated 
testing laboratori es recognized by the BSMI (Module II) before applying for registration of their 
products. Manufacturers or importers will also be required to ensure by declaration (Module III) that all 
products made at their manufacturing facilities are in conformity with  the prototypes submitted for type 
testing in Module II.  
Products will be allowed to use the Commodity Inspection Mark, the letter “R” and the identification 
number given by the BSMI, after they are certified and registered with the BSMI. These products ca n 
then pass through customs directly without any further inspection. The application fee and annual fee for 
RPC are both NT$5,000 for each type of product, and a RPC certificate is valid for 3 years.  
2. Procedures for Type Approved Batch Inspection (TABI)  
Under this procedure, manufacturer s or importer s shall have their products type -tested by the BSMI , and  
file an application for Type  Approval to the BSMI or its branches . 
After ma nufacturers or importers  have obtain ed type approval certificates, they are still required to file 
an application for batch inspection to the BSMI  each time before their products arrive at the port of entry. 
The BSMI will then perform inspection with simplified procedures. Additional samples may be required 
for further testing  as it is deemed necessary . The application  fee for a Type Approval is NT$3,500, and a 
Type Approva l Certificate is valid for 3 years.  
The fees for type -testing vary by products and depend on the fee schedule of the testing laborator y.  
Further information about the scheme is also available on the BSMI web site at  
http://www.bsmi.gov.tw/wSite /ct?xItem=8673&ctNode=811&mp=2  
Locatio ns to apply for Type Testing:  1. The BSMI  or his branch offices.  
2. BSMI -designated testing laboratories.  
 
Locations to apply for Registration of Product Certification and Type -approved Batch Inspection:  
The BSMI or his branch offices.  
 
Time required for Registration of Product Certification and Type -approved Batch Inspe ction:  
Fourteen working days. (This period does not include the time for corrective actions by the applicant due to 
deficiencies in the documents or samples; another 14 working days, upon the arrival of samples, may be 
required if additional tests are requ ired)  
Related  requirements for the inspection procedures:  
1. Either imported or domestic manufactured commodities subject to this proposal shall conform to 
inspection requirements when this proposal enters into force on  1 July 2018. The applicable conformity 
assessment schemes are the Registration of Product Certification (RPC) or the Type -approved Batch 
Inspection (TABI) Scheme.  
2. Upon the data of publication of this proposal, the BSMI will accept applications for registration of 
product or type approval. Afte r the applications have been reviewed and approved by the BSMI, When 
the BSMI completes the review procedure  and approves the application, the product registration 
certificate(s) or type approval certificate(s)  will be issued and valid for 3 years starting  from the issue 
date.  
3. “C02” is the import regulation code of the commodities subjected to this proposal.  
4. The terms used herein are defined as follow s: 
a. Same type:  Refers to commodities with the same  exhaust way, steel category, connecting manner 
of pipes.  
b. Main type:  Refers to one  nominal diameter  of assembly exhaust pipe  selected as the main  type 
among products from the same type at will.  
c. Series type:  Besides the main type, other commodities of the same type are deemed as series type.  
i. Besides the main type , assembly exhaust pipe s with other  different nominal diameter are 
deemed as series type . 
ii. The individual pipes (including straight pipes, bend s, T branches or top hood) from the main 
type and series type are deem ed as series type.  
5. Test items  are as follows:  
a. All inspection items : Structure, Material, S hape and scale , Connecting strength between pipes, 
Connecting strength between top hood and pipe, Tensile strength (for products with pulling 
resistance design), Gas tightness , Air resistance  through top hood, Inf low of rain, and 
Marking of CNS 15790.  
b. Major  inspection items: Shape and scale , Connecting  strength between pipes, Connecting 
strength between top hood and pipe, and Marking of CNS 15790.  
6. The relevant regulations for type -test: 
a. All inspection items shall b e conducted on the main type.  b. Assembly exhaust pipes of series type shall conduct all inspection items. But, assembly exhaust 
pipes whose  nominal diameter  is different from any one in the main type and series type shall 
conduct major inspection items.  
c. The assembly exhaust pipes of main type and series type pass the test, and their individual pipes  
shall not conduct any inspection item.  
7. The applicant shall submit the following technical documents and  samples according to different main 
types  and series type s to the  BSMI, his branch offices, and BSMI -designated testing laboratories.  
a. 4 x 6 inch or larger color photographs of the product or the original color  catalog.  
b. Type category list.  
c. The structure charts and tables of product and his p riority parts (includin g specification  and steel 
category number ). 
d. Declaration of  the c onformity  of material for exhaust pipes  for gas water heaters . (for the same  
manufacturing factory  and steel category pipes)  
e. Location of specimen of commodity inspection mark.  
f. Specimen of Chin ese label  and instruction manual.  
8. The inspection standards shall be the latest version of standards as of the date this public notice to be 
adopted. When the applicable standard is revised or amended, the date of applying the revised or amended 
standard sh all be decided and announced by the BSMI.  
9. The C.C.C. Codes listed in the table are used for reference only. The commodities whose  product  name 
listed in the table but not belong to the C.C.C. Codes for reference after being recognized by the Customs 
Admini stration, Ministry of Finance, or Bureau of Foreign  Trade, Ministry of Economic Affairs shall still 
complete the inspection procedure s before entering  into the market .