1.

Notifying Member: UGANDA

If applicable, name of local government involved (Article 3.2 and 7.2):

2.

Agency responsible:

Uganda National Bureau of Standards

Plot 2-12 ByPass Link, Bweyogerere Industrial and Business Park

P.O. Box 6329

Kampala, Uganda

Tel: +(256) 4 1733 3250/1/2

Fax: +(256) 4 1428 6123

E-mail: info@unbs.go.ug

Website: https://www.unbs.go.ug

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 [X], 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): Flexible tubes, pipes and hoses, of plastics, burst pressure >= 27,6 MPa (HS code(s): 391731); Plastics pipes (ICS code(s): 23.040.20)

5.

Title, number of pages and language(s) of the notified document: DUS 945-2, pre-insulated flexible pipe systems — Part 2: Non bonded system with plastic service pipes, requirements and methods of test, Second Edition; (14 page(s), in English)

6.

Description of content: This Draft Uganda Standard specifies the requirements and methods of test for flexible, pre-insulated, direct buried district heating pipes with plastic s`1ervice pipes and no bonding between the layers of the pipes. This standard is valid for maximum operating temperatures of 95 °C and maximum operating pressures up to 10 bars for a design lifetime of at least 30 years. This draft standard does not cover surveillance systems. NOTE For higher temperatures or for the transport of other fluids, for example potable water, additional requirements and testing may be needed. Such requirements are not specified in this standard.

7.

Objective and rationale, including the nature of urgent problems where applicable: Prevention of deceptive practices and consumer protection; Protection of human health or safety; Protection of the environment; Quality requirements; Harmonization; Reducing trade barriers and facilitating trade

8.

Relevant documents:

1._    ISO 9080, Plastics piping and ducting systems — Determination of the long-term hydrostatic strength of thermoplastics materials in pipe form by extrapolation

2._    ISO 10147, Pipes and fittings made of crosslinked polyethylene (PE-X) — Estimation of the degree of crosslinking by determination of the gel content

3._    ISO 10508; Plastics piping systems for hot and cold water installations — Guidance for classification and design

4._    ISO 13760, Plastics pipes for the conveyance of fluids under pressure — Miner's rule — Calculation method for cumulative damage

5._    ISO 15875-1, Plastics piping systems for hot and cold water installations — Crosslinked polyethylene (PEX) — Part 1: General

6._    ISO 15875-2, Plastics piping systems for hot and cold water installations — Crosslinked polyethylene (PE-X) — Part 2: Pipes

7._    ISO 15875-3, Plastics piping systems for hot and cold water installations — Crosslinked polyethylene (PEX) — Part 3: Fittings

8._    ISO 15875-5, Plastics piping systems for hot and cold water installations — Crosslinked polyethylene (PE-X) — Part 5: Fitness for purpose of the system

9._    ISO 15876-1, Plastics piping systems for hot and cold water installations — Polybutylene (PB) — Part 1: General

10._  ISO 15876-2, Plastics piping systems for hot and cold water installations — Polybutylene (PB) — Part 2: Pipes

11._  ISO 15876-3, Plastics piping systems for hot and cold water installations — Polybutylene (PB) — Part 3: Fittings

12._  ISO 15876-5, Plastics piping systems for hot and cold water installations — Polybutylene (PB) — Part 5: Fitness for purpose of the system

13._  ISO 17455, Plastics piping systems — Multilayer pipes — Determination of the oxygen permeability of the barrier pipe

14._  ISO 21003:1: Multilayer piping systems for hot and cold-water installations inside buildings — Part 1: General

15._  ISO 21003-2, Multilayer piping systems for hot and cold-water installations inside buildings — Part 2: Pipes

Referenced Notification(s):

·_        G/TBT/N/UGA/295

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:

Uganda National Bureau of Standards

Plot 2-12 ByPass Link, Bweyogerere Industrial and Business Park

P.O. Box 6329

Kampala, Uganda

Tel: +(256) 4 1733 3250/1/2

Fax: +(256) 4 1428 6123

E-mail: info@unbs.go.ug

Website: https://www.unbs.go.ug