SCDOT is soliciting for glass beads used in traffic paint. All materials shall meet the requirements and specifications below. Section 3.4 of AASHTO M 247 will be amended to include the following: The glass beads must not contain more than 200 ppm (total) arsenic, 200 ppm (total) antimony, or 200 ppm (total) lead, when tested according to EPA Methods 3052 and 6010B. Section 5 of AASHTO M 247 will be amended to include the following: The manufacturer shall provide to the SCDOT’s Office of Materials and Research a certification of compliance with these specifications for each batch or lot of material produced. This certification will minimally include the results of testing for gradations, roundness, and moisture resistance. A manufacturer’s statement of compliance with the requirements of AASHTO M 247 Section 3.4 should also be included in the certification. The certification will also indicate the location(s) to which the batch was shipped. SCDOT reserves the right to obtain samples either at the point of manufacture or after shipment for whatever further testing is deemed necessary. Certifications should be mailed to: SCDOT Office of Materials and Research, Attn: Caleb Gunter, 1406 Shop Road, Columbia, South Carolina 29201
