G/TBT/N/MWI/61  
17 March 2022  
(22-2366) Page: 1/3 
Committee on Technical Barriers to Trade  Original:  English  
 
  
NOTIFICATION  
The following notification is being circulated in accordance with Article 10.6  
 
1. Notifying Member:  MALAWI   
If applicable, name of local government involved (Article 3.2 and 7.2):   
2. Agency responsible:  Malawi Bureau of Standards  
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:   
The Director General  
Malawi Bureau of Standards  
P.O Box 946  
Blantyre  
Malawi  
Tel: +265 887 376 444/445/446/447  
Fax: +265 1 870 756  
Email: mbs@mbsmw.org  
Website: http://www.mbsmw.org/  
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):  This 
document also specifies the test parameters for the test methods referred to in this 
document. In conjunction with the other parts of the DMS 374 series, this document is 
applicable to PE fittings, to joints with components of PE or other materials, intended to 
be used under the following conditions; PLASTICS AND ARTICLES THEREOF (HS 39); 
CIVIL ENGINEERING (ICS 93)  
5. Title, number of pages and language(s) of the notified document:  DMS 374 -
3:2021, Plastics piping systems — Polyethylene (PE) pipes and  fittings for water supply 
— Part 3: Fittings (33 page(s), in English)  
6. Description of content:  This document specifies the fittings made from polyethylene 
(PE) for buried or above ground applications, intended for the conveyance of water for 
human cons umption, raw water prior to treatment, drainage and sewerage under 
pressure, vacuum sewer systems, and water for  other purposes.  
7. Objective and rationale, including the nature of urgent problems where 
applicable:  Consumer information, labelling; Quality  requirements  
8. Relevant documents:   
1. DMS 374 -1, Plastics piping systems for water supply, and for drainage and 
sewerage under pressure — Polyethylene (PE) — Part 1: General;  G/TBT/N/MWI/61  
 
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  2. DMS 374 -2, Plastics piping systems for water supply, and for drainage and 
sewerage under pressure — Polyethylene (PE) — Part 2: Pipes;  
3. DMS 374 -5, Plastics piping systems for water supply, and for drainage and 
sewerage under pressure — Polyethylene (PE) — Part 5: Fitness for purpose of 
the system;  
4. ISO 7 -1, Pipe threads where pres sure-tight joints are made on the threads — 
Part 1: Dimensions, tolerances and designation;  
5. ISO 228 -1, Pipe threads where pressure -tight joints are not made on the 
threads — Part 1: Dimensions, tolerances and designation;  
6. ISO 1133 -1, Plastics — Determinati on of the melt mass -flow rate (MFR) and 
melt volume -flow rate (MVR) of thermoplastics — Part 1: Standard method;  
7. ISO 1167 -1:2006, Thermoplastics pipes, fittings and assemblies for the 
conveyance of fluids — Determination of the resistance to internal press ure — 
Part 1: General method;  
8. ISO 1167 -3, Thermoplastics pipes, fittings and assemblies for the conveyance of 
fluids — Determination of the resistance to internal pressure — Part 3: 
Preparation of components;  
9. ISO 1167 -4, Thermoplastics pipes, fittings and assemblies for the conveyance of 
fluids — Determination of the resistance to internal pressure — Part 4: 
Preparation of assemblies;  
10. ISO 3126, Plastics piping systems — Plastics components — Determination of 
dimensions;  
11. ISO 4433 -1, Thermoplastics pipes — Resistance to liquid chemicals — 
Classification — Part 1: Immersion test method;  
12. ISO 4433 -2, Thermoplastics pipes — Resistance to liquid chemicals — 
Classification — Part 2: Polyolefin pipes;  
13. ISO 9624, Thermoplastics pipes for fluids  under pressure — Mating dimensions 
of flange adapters and loose backing flanges Thermoplastics pipes for fluids 
under pressure — Mating dimensions of flange adapters and loose backing 
flanges;  
14. ISO 11357 -6, Plastics — Differential scanning calorimetry (DSC ) — Part 6: 
Determination of oxidation induction time (isothermal OIT) and oxidation 
induction temperature (dynamic OIT);  
15. ISO 12176 -1, Plastics pipes and fittings — Equipment for fusion jointing 
polyethylene systems — Part 1: Butt fusion;  
16. ISO 13951, Plasti cs piping systems — Test method for the resistance of plastic 
pipe/pipe or pipe/fitting assemblies to tensile loading;  
17. ISO 13953, Polyethylene (PE) pipes and fittings — Determination of the tensile 
strength and failure mode of test pieces from a butt -fused  joint;  
18. ISO 13954, Plastics pipes and fittings — Peel decohesion test for polyethylene 
(PE) electrofusion assemblies of nominal outside diameter greater than or equal 
to 90 mm;  
19. ISO 13955, Plastics pipes and fittings — Crushing decohesion test for 
polyethyl ene (PE) electrofusion assemblies;  
20. ISO 13956, Plastics pipes and fittings — Decohesion test of polyethylene (PE) 
saddle fusion joints — Evaluation of ductility of fusion joint interface by tear 
test; 
21. ISO 13957, Plastics pipes and fittings — Polyethylene (P E) tapping tees — Test 
method for impact resistance;  G/TBT/N/MWI/61  
 
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  22. ISO 17885, Plastics piping systems — Mechanical fittings for pressure piping 
systems — Specifications; and 
23. EN 681 -1:1996, Elastomeric seals — Materials requirements for pipe joint seals 
used in water and  drainage applications — Part 1: Vulcanized rubber.  
9. Proposed date of adoption:  To be determined  
Proposed date of entry into force:  Six months from date of adoption; 6 months from 
adoption  
10. Final date for comments:  60 days from notification  
11. Texts available from:  National enquiry point [X] or address, telephone and fax 
numbers and email and website addresses, if available , of other body:   
Director General  
Malawi Bureau of Standards  
P.O. Box 946  
Blantyre  
 
+(265) 887 376 444/445/446/447  
+(265) 1 870 756 (Fax)  
mbs@mbsmw.org  
https://members.wto.org/crnattachments/2022/TBT/MWI/22_2324_00_e.p df