G/TBT/N/TZA/956  
4 May 2023  
(23-3152) Page: 1/2 
Committee on Technical Barriers to Trade  Original:  English  
 
  
NOTIFICATION  
The following notification is being circulated in accordance with Article 10.6  
 
1. Notifying Member:  TANZANIA  
If applicable, name of local government involved (Article 3.2 and 7.2):   
2. Agency responsible:   
Tanzania Bureau of Standards (TBS)  
MOROGORO/Sam Nujoma Road, Ubungo  
P O BOX 9524, Dar es Salaam, Tanzania  
Tel: +255 222450206,  
E- mail: nep@tbs.go.tz  
Website: www.tbs.go.tz  
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:   
3. Notified under Article 2.9.2 [X], 2.10.1 [  ], 5.6.2 [  ], 5.7.1 [  ], 3.2 [  ], 7.2 [  ], 
other :  
4. Products covered (HS or CCCN where applicable, otherwise national tariff 
heading. ICS numbers may be provided in addition, where applicable):  Steel wire, 
wire ropes and link chains (ICS code(s): 77.140.65)  
5. Title, number of pages  and language(s) of the notified document:  MEDC 02 (1932) 
DTZS, Gabions and revet mattresses — Specification, First Edition; (19 page(s), in 
English)  
6. Description of content:  This Tanzania Standard specifies materials, dimensions, 
construction and testi ng of gabions and revet mattresses. It also specifies the 
characteristics of metallic -coated steel wire applied in producing gabions and revet 
mattresses. This standard cover gabions and revet mattresses produced from double -
twisted metallic -coated wire me sh, and metallic -coated wire for lacing wire, stiffeners, 
and fasteners used for manufacturing, assembling, and installation of the product. These 
specifications also cover gabions and revet mattresses in which the wire mesh, lacing 
wire, and stiffeners ar e poly (vinyl chloride) (PVC) coated after the metallic coating  
7. Objective and rationale, including the nature of urgent problems where 
applicable:  Quality requirements; Reducing trade barriers and facilitating trade  G/TBT/N/TZA/956  
 
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  8. Relevant documents:   
TZS 4, Rounding off numerical values  
TZS 1795/EAS 135, Steel wire and steel wire products for fencing — Specification  
ISO 37, Rubber, vulcanized or thermoplastic — Determination of tensile stress -strain 
properties ISO 868, Plastics and ebonite — Determina tion of indentation hardness by 
means of a durometer (Shore hardness)  
ISO 974, Plastics — Determination of the brittleness temperature by impact  
ISO 1183 -1, Plastics — Methods for determining the density of non -cellular plastics — 
Part 1: Immersion method, liquid pycnometer method and titration method  
ISO 6892 -1, Metallic materials — Tensile testing — Part 1: Method of test at room 
temperature  
ISO 6931 -1, Stainless steels for springs — Part 1: Wire  
ISO 7989 -1, Steel wire and wire products — Non-ferrous metallic coatings on steel wire 
— Part 1: General principles ISO 7989 -2, Steel wire and wire products — Non-ferrous 
metallic coatings on steel wire — Part 2: Zinc or zinc -alloy coating  
ISO 9227, Corrosion tests in artificial atmospheres — Salt spray tests  
ISO 22034 -1, Steel wire and wire products — Part 1: General test methods  
ISO 22034 -2, Steel wire and wire products — Part 2: Tolerances on wire dimensions  
ISO 22779, Metallic coatings — Physical vapour -deposited coatings of aluminium — 
Specification and test methods  
ASTM A809, Standard specification for aluminum -coated (aluminized) carbon steel wire  
ASTM D1499, Standard practice for filtered open -flame carbon -arc exposures of plastics  
ASTM G152, Standard practice for operating open flame  carbon arc light apparatus for 
exposure of nonmetallic materials  
ASTM D7014, Standard Practice for installation of double -twisted wire mesh gabions and 
revet mattresses  
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  
11. Texts available from:  National enquiry point [X] or address, telephone and fax 
numbers and email and website addresses, if available , of other body:   
Contact person(s):  
Ms. Bahati Samillani (NEP officer) and Mr. Clavery Chausi  
Tanzania Bureau of Standards (TBS)  
Morogoro/Sam Nujoma Road, Ubungo  
P O Box 9524  
Dar Es Salaam  
Tel: +(255) 22 2450206  
Email: nep@tbs.go.tz ; bahati.samillani@tbs.go.tz  
Website: http://www.tbs.go.tz  
https://members.wto.org/crnattachments/2023/TBT/TZA/23_09453_00_e.pdf