Inconsistent raw material composition can derail an entire production batch. Whether a cement plant receives limestone with variable calcium carbonate content or a polymer compounder needs to verify filler loading, undetected compositional variation translates directly into rejected product and lost revenue.
A thermogravimetric analyzer in Mexico gives laboratories the tool to catch these problems before they reach the production floor. Qualitest supplies TGA systems configured for moisture, ash, volatile matter, and loss on ignition (LOI) analysis across the materials that drive Mexico's industrial economy.
How Thermogravimetric Analysis Works
A TGA measures mass change as temperature increases under a controlled atmosphere. The instrument places a specimen on a precision balance inside a programmable furnace. As the furnace follows a defined heating rate, the balance records weight loss or gain at each stage.
Different components decompose at different temperatures. Moisture evaporates first, followed by volatile organic matter. Fixed carbon then burns off in an oxidizing atmosphere. The residual mass represents ash or inorganic filler content. This stepwise decomposition profile reveals a material's exact composition in a single automated run.
Industries Driving TGA Demand Across Mexico
1. Cement and Construction Materials
Mexico's cement market reached approximately 47 million metric tonnes in 2025, supported by residential construction, nearshoring-driven industrial park development, and ongoing infrastructure programs. Producers like CEMEX and GCC operate plants that rely on thermogravimetric analysis to monitor calcium carbonate decomposition in raw meal, measure LOI in clinker, and confirm calcite content in Portland cement.
Every kiln feed adjustment depends on accurate compositional data. A TGA thermogravimetric analyzer running ASTM D7582 or equivalent proximate analysis methods delivers that data with the throughput a high-volume cement operation requires.
2. Mining and Mineral Processing
Mexico hosts close to 1,200 active mining projects spanning silver, copper, gold, zinc, and lithium. Major operators including Grupo México and Fresnillo plc depend on thermal analysis to characterize ore samples, evaluate gangue mineral content, and assess the thermal behavior of flotation reagents and catalysts.
Laboratories in mining corridors from Sonora to Zacatecas use TGA to determine moisture and volatile content in coal and coke used for smelting operations. Accurate proximate analysis ensures furnace efficiency and emission compliance across these energy-intensive processes.
3. Automotive and Polymer Manufacturing
Mexico produced approximately 4 million vehicles in 2024, and the automotive sector accounts for over 31% of the country's total exports. Nearshoring investments continue to expand polymer consumption as Tier 1 suppliers manufacture bumpers, interior panels, dashboards, and under-hood components.
Thermogravimetric analysis verifies filler content in compounded resins, measures thermal stability of engineering plastics, and confirms that formulations meet OEM specifications. Some of TGA handles compositional analysis per ASTM E1131, providing the decomposition data that polymer processors need for incoming material verification and process control.
4. Pharmaceutical Quality Control
Mexico ranks as Latin America's second-largest pharmaceutical market. COFEPRIS, the national health regulatory agency, enforces Good Manufacturing Practices under NOM-059-SSA1, requiring documented evidence of raw material identity and purity.
TGA supports pharmaceutical quality programs by measuring moisture content, identifying hydrate forms, and evaluating thermal stability of active ingredients and excipients. These measurements feed directly into stability studies required for product registration.
Standards and Compliance in the Mexican Market
Mexican laboratories operate under a dual framework of international and national standards. The table below maps key TGA-related standards to their primary applications:
| Standard | Application |
|---|
| ASTM E1131 | Compositional analysis by thermogravimetry |
| ASTM D7582 | Proximate analysis of coal and coke by macro TGA |
| ISO 11358 | Thermogravimetry of polymers |
| ASTM E1868 | Loss on drying by thermogravimetry |
| NOM / NMX | Mexican national standards for material characterization |
Laboratories pursuing ISO/IEC 17025 accreditation through EMA (Entidad Mexicana de Acreditación) need instruments with documented calibration traceability and validated measurement uncertainty. Qualitest TGA systems ship with calibration documentation to support these accreditation requirements.
Selecting the Right TGA Configuration
Choosing a thermogravimetric analyzer depends on your sample types, testing volume, and analytical depth. Key decision factors include:
- Temperature range: standard models reach 1,000°C for most polymer and cement applications, while high-temperature configurations extend to 1,200°C for ceramic and mineral analysis
- Sample capacity: macro TGA units handle samples up to 5 g and analyze up to 19 specimens simultaneously, reducing turnaround time in high-volume labs
- Atmosphere control: switchable inert and oxidizing gas flows enable both pyrolysis and combustion analysis in a single instrument
- Automation level: fully automated carousel loading, weighing, and reporting minimize operator intervention and improve repeatability
Explore the full QualiTGA range to compare configurations across Qualitest's TGA portfolio.
Equip Your Mexican Laboratory With Reliable Thermal Analysis
From cement plants along the Gulf Coast to polymer testing labs in the Bajío automotive corridor, Mexican industries need compositional data they can trust. The right TGA configuration turns raw material uncertainty into documented, standards-compliant results.
Contact us to discuss your sample matrix, throughput requirements, and compliance targets. Our team will recommend a thermogravimetric analyzer matched to your laboratory's specific testing program and accreditation goals.
