ESBD_467863_1762786529858_02. Specification No. TxDOT 175-60-68812.pdf

TEXAS DEPARTMENT OF TRANSPORTATION

SPECIFICATION NO.

TxDOT 175-60-68812

DATED: NOVEMBER 2025

1-3

IGNITION OVEN FOR ASPHALT TESTING

PUBLICATION

This specification is a product of the Texas Department of Transportation (TxDOT). This specification may not be sold for profit or monetary gain. If this document is altered in any way, the header, and all references to TxDOT must be removed. TxDOT does not assume nor accept any liability when this specification is used in the procurement process by any other entity.

1. SCOPE: This specification is for the purchase of two ignition ovens for determining asphalt content of bituminous mixtures by the ignition method for use by the Texas Department of Transportation (TxDOT).

2. DELIVERY LOCATION: The units must be delivered to the following TxDOT location:

2.1. 1701 S. Padre Island Drive, Corpus Christi, TX 78416 – Attn: Jacob Longoria

3. DEFINITIONS OF TERMS AND ACRONYMS

3.1. AASHTO – American Association of Highway and Transportation Officials

3.2. ASTM – American Society for Testing and Materials

3.3. ANSI – American National Standards Institute

3.4. CSV – Comma Separated Values

3.5. RS – 232 – Recommended Standard 232

4. EQUIPMENT

4.1. Equipment furnished must be the latest model in current production, as offered to commercial trade, and of quality workmanship and material. The vendor represents that all equipment offered will be new. Used, shopworn, demonstrator, prototype, re-manufactured, or discontinued models are not acceptable.

4.2. All parts not specifically mentioned which are necessary for the unit to be complete and ready for operation or which are normally furnished as standard equipment must be furnished by the vendor. All parts must conform in strength, quality, and workmanship to the accepted standard of the industry.

4.3. The equipment must meet all applicable federal and State of Texas safety, health, lighting, and noise standards that are in effect at the time of manufacture.

4.4. Equipment must be new, current-production, and meet AASHTO T 308 and ASTM D6307 standards.

4.5. Chamber temperature range must reach at least 1,200 °F (650 °C) with automatic temperature control and over-temperature protection.

4.6. System must include an integrated balance with a minimum 10,000 g capacity and 0.1 g resolution, and heat-resistant sample baskets with a minimum 4,500 g capacity.

TxDOT 175-60-68812

DATED: NOVEMBER 2025

2-3

4.7. Unit must include an exhaust and filtration system suitable for removal of asphalt combustion fumes.

4.8. Operation must be stand-alone; no network connectivity to TxDOT systems is required.

4.9. Unit must provide RS-232 or USB interface for optional data export.

4.10. Power requirement: 220–240 V, single phase.

4.11. All accessories required for safe and complete operation must be included.

4.12. Unit must include a power cord and a circuit-breaker power switch.

4.13. Unit must include an internal printer, LCD display, and keypad for test control and data entry.

4.14. Unit must include an RS-232 serial port and have onboard memory capable of storing a minimum of 20 projects, 20 aggregate correction factors, and 200 sample records.

4.15. One (1) sample basket assembly must be provided.

4.16. One (1) aluminum compressed exhaust duct, 4 in. diameter × 15 ft.

length, must be provided.

4.17. One (1) duct adapter, 3 in. to 4 in., must be provided for connection to standard lab exhaust systems.

5. DATA

5.1. System must automatically calculate asphalt content from mass loss and allow entry of correction factors.

5.2. Data must be exportable in a standard format (e.g., CSV or ASCII).

6. SAFETY PLAQUES OR DECALS

6.1. Unit must include a door interlock system that prevents operation when the chamber door is open.

6.2. Unit must include automatic over-temperature shutoff protection.

6.3. Safety markings must meet the requirements of ANSI Z535.4 (latest revision) for type, size, color, and placement.

6.4. All warning labels must be permanent and resistant to heat, chemical exposure, and abrasion.

7. EXAMPLE MAKE/MODELS

The makes and models listed below are provided for reference only. Equivalent products that meet or exceed the specifications will be considered.

7.1. Troxler – Model 4740 ICO NCAT Ignition Oven

7.2. Humboldt – H-1550 Ignition Oven

Note: or in accordance with paragraph 2.01 Specification of the TxDOT Terms and Conditions.

TxDOT 175-60-68812

DATED: NOVEMBER 2025

3-3

7. VENDOR DELIVERABLES

10.1. Ignition oven system, complete with all required accessories.

10.2. Calibration documentation and certificate of compliance.

10.3. Operator’s manual and safety instructions in English (printed or digital).

11. WARRANTY REQUIREMENTS

11.1. MATERIAL WARRANTY: Materials provided under the contract must be in current production, as offered to commercial trade, and be of quality material. Used, shopworn, demonstrator, prototype, reconditioned, or discontinued materials are not acceptable. Materials must be warranted against material defects and defects in workmanship for a period of not less than 12 months and cover 100% parts and labor. The warranty period must commence upon date of acceptance by TxDOT. If the manufacturer’s standard warranty period exceeds 12 months, then the standard warranty period must be in effect. The vendor must be responsible for the warranty.

The vendor must provide the designated TxDOT representative with all manufacturers’ warranty documents upon completion of service prior to leaving the job site.

12. VENDOR PERFORMANCE: Vendor performance will be monitored on a regular basis by TxDOT.

12.1. An unsatisfactory performance determination includes, but is not limited to:

12.1.1. Failure to deliver any portion of the equipment.

12.1.2. Any requirement not met as outlined in the equipment requirements determined by TxDOT.

NOTE: Unsatisfactory performance may result in a negative vendor performance report, or cancellation of the contract or both, in addition to any other rights, liquidated damages and remedies provided by the contract or allowed by law.

12.2. An exceptional performance determination includes, but is not limited to:

12.2.1. Deliverables made early upon TxDOT personnel request.

12.2.2. Product upgrade substitution suggested and accepted at no additional cost to TxDOT.

12.2.3. Vendor commended for exceptional customer service; exceptional service provided.

12.2.4. Provided technical assistance when not required.