1.

Notifying Member: TRINIDAD AND TOBAGO

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

2.

Agency responsible:

Trinidad and Tobago Bureau of Standards

1-2 Century Drive Trincity Industrial Estate

Macoya, Tunapuna

Tel : 868-662-8827

Fax: 868-663-4335

Email: ttbs@ttbs.org.tt

Website: www.gottbs.com

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): Terracotta building products (ICS code(s): 91.100.25)

5.

Title, number of pages and language(s) of the notified document: Hollow clay blocks - Vertical core - Compulsory requirements; (12 page(s), in English)

6.

Description of content: Scope

This standard applies to vertical core, hollow clay blocks which are manufactured from clay, shale, fire clay or mixtures thereof, for use in Trinidad and Tobago. Vertical core, hollow clay blocks are intended for use in masonry supplying both structural and facing components to a structure. This standard does not apply to hollow clay blocks intended for use as paving bricks or hollow clay blocks with horizontal cores.

This draft standard includes compulsory requirements for surface finish, face shell thickness, web thickness, maximum water absorption, compressive strength, and labelling.

This standard also outlines the mechanism to demonstrate compliance to these requirements and includes measures to be taken in the event of non-compliance.

This standard applies to vertical core, hollow clay blocks which comply with the following characteristics:

·_        Grade MW,

·_        Type HBS or Type HBX, and

·_        Class H40V or Class H60V

NOTE Vertical core, hollow clay blocks are typically used in load bearing applications with the cells oriented vertically.

7.

Objective and rationale, including the nature of urgent problems where applicable: Protection of human health or safety

8.

Relevant documents:

The following are the normative documents:

ASTM International

ASTM C67/C67M, Standard Test Methods for Sampling and Testing Brick and Structural Clay Tile

ASTM C1232, Standard Terminology for Masonry

ASTM C652, Standard Specification for Hollow Brick (Hollow Masonry Units Made From Clay or Shale)

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:

https://members.wto.org/crnattachments/2024/TBT/TTO/24_04889_00_e.pdf