G/TBT/N/MWI/59  
17 March 2022  
(22-2364) 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: 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):  Plastics 
piping systems — Polyethylene (PE) pipes and fittings for water supply; PLASTICS AND 
ARTICLES THEREOF (HS 39); CIVIL ENGINEERING (ICS  93) 
5. Title, number of pages and language(s) of the notified document:  DMS 374 -
1:2021, Plastics piping systems — Polyethylene (PE) pipes and fittings for water supply 
— Part 1: General (14 page(s), in English)  
6. Description of content:  This document s pecifies the general aspects of polyethylene 
(PE) compounds for the manufacture of pressure pipes and fittings (mains and service 
pipes) for buried or above ground applications  
7. Objective and rationale, including the nature of urgent problems where 
applicable:  Consumer information, labelling; Quality requirements  
8. Relevant documents:   
1. ISO 3 , Preferred numbers — Series of preferred numbers;  
2. ISO 472 , Plastics — Vocabulary;  
3. ISO 1043 -1, Plastics — Symbols and abbreviated terms — Part 1: Basic 
polymers and their special characteristics;  
4. ISO 1133 -1, Plastics — Determination of the melt mass -flow rate (MFR) and 
melt volume -flow rate (MVR) of thermoplastics — Part 1: Standard method;  G/TBT/N/MWI/59  
 
- 2 - 
 
  5. ISO 1167 -1:2006 , Thermoplastics pipes, fittings and assemblies fo r the 
conveyance of fluids — Determination of the resistance to internal pressure — 
Part 1: General method;  
6. ISO 1167 -2, Thermoplastics pipes, fittings and assemblies for the conveyance of 
fluids — Determination of the resistance to internal pressure — Part 2: 
Preparation of pipe test pieces;  
7. ISO 1183 -1, Plastics — Methods for determining the density of non -cellular 
plastics — Part 1: Immersion method, liquid pycnometer method and titration 
method;  
8. ISO 1183 -2, Plastics — Methods for determining the density o f non-cellular 
plastics — Part 2: Density gradient column method;  
9. ISO 4427 -2, Plastics piping systems for water supply, and for drainage and 
sewerage under pressure — Polyethylene (PE) — Part2: Pipes;  
10. ISO 4427 -3, Plastics piping systems for water supply, and for drainage and 
sewerage under pressure — Polyethylene (PE) — Part 3: Fittings;  
11. ISO 6259 -1, Thermoplastics pipes — Determination of tensile properties — Part 
1: General test method;  
12. ISO 6259 -3, Thermoplastics pipes — Determination of tensile properties — Part 
3: Polyolefin pipes;  
13. ISO 6964 , Polyolefin pipes and fittings — Determination of carbon black content 
by calcination and pyrolysis — Test method;  
14. ISO 9080 , Plastics piping and ducting systems — Determination of the long -
term hydros tatic strength of thermoplastics materials in pipe form by 
extrapolation;  
15. ISO 11357 -6, Plastics — Differential scanning calorimetry (DSC) — Part 6: 
Determination of oxidation induction time (isothermal OIT) and oxidation 
induction temperature (dynamic OIT) ; 
16. ISO 11413 , Plastics pipes and fittings — Preparation of test piece assemblies 
between a polyethylene (PE) pipe and an electrofusion fitting;  
17. ISO 11414 , Plastics pipes and fittings — Preparation of polyethylene (PE) 
pipe/pipe or pipe/fitting test piece as semblies by butt fusion;  
18. ISO 12162 , Thermoplastics materials for pipes and fittings for pressure 
applications — Classification, designation and design coefficient;  
19. ISO 13477 , Thermoplastics pipes for the conveyance of fluids — Determination 
of resistance t o rapid crack propagation (RCP) — Small -scale steady -state test 
(S4 test);  
20. ISO 13478 , Thermoplastics pipes for the conveyance of fluids — Determination 
of resistance to rapid crack propagation (RCP) — Full-scale test (FST);  
21. ISO 13479 , Polyolefin pipes for the conveyance of fluids — Determination of 
resistance to crack propagation — Test method for slow crack growth on 
notched pipes;  
22. ISO 13953 , Polyethylene (PE) pipes and fittings — Determination of the tensile 
strength and failure mode of test pieces from a  butt-fused joint;  
23. 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;  
24. ISO 15512 , Plastics — Determination of water content;  
25. ISO 16871 , Plastics piping and ducting systems — Plastics pipes and fittings — 
Method for exposure to direct (natural) weathering; and G/TBT/N/MWI/59  
 
- 3 - 
 
  26. EN 12099 , Plastics piping systems — Polyethylene piping materials and 
components — Determination of volatile content.  
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_2307_00_e.pdf