The Trinidad and Tobago Bureau of Standards (TTBS) is in the process of withdrawing the following two voluntary national standards for Trinidad Lake Asphalt:

• TTS/ASTM D6626:2002, Standard specification for graded Trinidad Lake Modified Asphalt binder
• TTS/ASTM D5710:2012, Standard specification for Trinidad Lake Modified Asphalt

Please contact the Standards Information Centre at TTBS (ttbs@ttbs.org.tt ) to view the aforementioned standards.

Please feel free to submit comments to Ms Beverly Monroe (beverly.monroe@ttbs.org.tt ).

The deadline for comments is 19^th July 2025.