The most stress-tested service

Comprehensive Stress-Tested Service – Accredited ISO/IEC 17025 Extreme Condition Performance Assessment for the Colombian Market

In the demanding industrial landscape of Colombia, where equipment and components face harsh environmental conditions, heavy mechanical loads, thermal extremes, and corrosive atmospheres, ensuring product reliability is paramount. Our comprehensive stress-tested service is designed to evaluate the performance, durability, and safety of materials and components under the most severe operating conditions. This service integrates multiple standardized test methods to simulate the combined effects of mechanical stress (tension, compression, bending, impact, fatigue), thermal stress (high and low temperatures, thermal shock, thermal cycling), environmental stress (humidity, salt spray, UV radiation, ozone), and chemical stress (corrosion, chemical exposure). All tests are performed under our ISO/IEC 17025 (CNAS) accreditation, and the resulting reports are fully accepted by Colombian authorities, including the Superintendencia de Industria y Comercio (SIC), the Ministerio de Minas y Energía (MinMinas), the Agencia Nacional de Hidrocarburos (ANH), and the Dirección de Impuestos y Aduanas Nacionales (DIAN), making them indispensable for product certification, supplier qualification, and market access in Colombia.

Materials, Components, and Systems We Regularly Stress-Test

Our laboratory receives a wide variety of materials and components for comprehensive stress testing. Typical samples include:

• Metals and alloys – carbon steels, stainless steels, aluminum alloys, titanium alloys, nickel-based superalloys, and copper alloys for structural, automotive, aerospace, and oil and gas applications.
• Polymers and plastics – thermoplastics, thermosets, elastomers, and composites for automotive, construction, and consumer goods.
• Composite materials – fiber-reinforced plastics, sandwich panels, and laminates for aerospace, marine, and construction.
• Ceramics and refractories – for high-temperature and wear-resistant applications.
• Automotive and transportation components – suspension systems, brake components, engine parts, and structural elements.
• Oil and gas equipment – pipelines, valves, pressure vessels, and downhole tools.
• Mining and heavy machinery components – crusher parts, conveyor components, and structural frames.
• Prototype and new product designs – submitted by manufacturers for validation of stress resistance before series production.
• Components retrieved from field service – for failure analysis and remaining life assessment.

Mechanical Stress Testing – Evaluating Strength and Fatigue Resistance

Mechanical stress testing is the foundation of our stress-tested service. It evaluates the ability of materials and components to withstand static and dynamic loads without failure. Our comprehensive mechanical test suite includes tensile, compression, bending, impact, fatigue, and creep testing.

• Tensile and compression testing (ASTM E8 / ISO 6892 / NTC 2150 – for metals; ASTM D638 / ISO 527 / NTC 3853 – for plastics) – we measure the yield strength, ultimate tensile strength, elongation, and modulus of elasticity under static loading. Compression testing evaluates the compressive strength and modulus of materials used in structural applications. We report the stress-strain curves and the key mechanical properties.
• Bending and flexural testing (ASTM E290 / ISO 7438 / NTC 2152 – for metals; ASTM D790 / ISO 178 / NTC 3854 – for plastics) – we measure the flexural strength, flexural modulus, and deformation behavior of beams, plates, and structural components. We report the flexural properties and the load-deflection curves.
• Impact testing (ASTM E23 / ISO 148-1 / NTC 3804 – Charpy; ASTM D256 / ISO 180 / NTC 3856 – Izod for plastics) – we measure the energy absorbed by a specimen during fracture under impact loading, which is a measure of its toughness. We report the impact energy (in Joules) and the fracture appearance (ductile or brittle).
• Fatigue testing (ASTM E466 / ISO 1099 / NTC 3870 – for metals; ASTM D7791 / NTC 3871 – for plastics) – we apply cyclic loading to the specimen to determine its fatigue life and its fatigue limit. The test is performed under tension-tension, tension-compression, or bending modes. We report the S‑N curve, the fatigue limit, and the number of cycles to failure.
• Creep and stress relaxation testing (ASTM E139 / NTC 3872 – for metals; ASTM D2990 / NTC 3873 – for plastics) – we apply a constant load or strain to the specimen at a specified temperature (e.g., 200 °C, 400 °C) for an extended period, and we measure the time-dependent deformation (creep) or the stress decay (relaxation). We report the creep strain vs. time curve, the steady-state creep rate, and the stress relaxation curve.

Thermal Stress Testing – Evaluating Performance under Extreme Temperatures

Thermal stress testing evaluates the ability of materials and components to withstand extreme temperatures, temperature gradients, and thermal cycling. Our comprehensive thermal stress suite includes high-temperature exposure, low-temperature exposure, thermal shock, and thermal cycling tests.

• High-temperature exposure test (ASTM D573 / ISO 188 / NTC 4210 – for polymers; ASTM E21 / NTC 2153 – for metals) – we expose the specimen to a specified elevated temperature (e.g., 100 °C, 200 °C, 500 °C) for a defined period (e.g., 7, 14, or 28 days). After the exposure, we measure the changes in mechanical properties (tensile strength, hardness, elongation) and dimensions. We report the property retention and the visual condition.
• Low-temperature exposure test (ASTM E23 – variant / NTC 4211 – for impact at low temperatures) – we condition the specimen at a specified low temperature (e.g., -20 °C, -40 °C, -60 °C) and then perform mechanical tests (impact, tensile) to evaluate the embrittlement and the loss of ductility. We report the mechanical properties at low temperatures and the ductile-to-brittle transition temperature (DBTT).
• Thermal shock test (IEC 60068-2-14 / NTC 4212 – for electronic and mechanical components) – we subject the specimen to rapid temperature changes (e.g., from -40 °C to +85 °C) with a transfer time of less than 10 seconds, for a specified number of cycles (e.g., 50 or 100 cycles). We inspect the specimen for cracks, delamination, and loss of function. We report the number of cycles and the condition of the specimen.
• Thermal cycling test (ASTM D3045 / NTC 4213 – for materials) – we subject the specimen to repeated temperature cycles (e.g., from -20 °C to +80 °C) at a controlled rate (e.g., 2 °C/min), for a specified number of cycles (e.g., 10, 50, or 100 cycles). We measure the changes in mechanical properties, dimensions, and appearance. We report the property retention and the dimensional stability.
• Thermal stability analysis (TGA and DSC – ASTM E1131 / NTC 4214; ASTM D3418 / NTC 4215) – we use thermogravimetric analysis (TGA) to measure the thermal decomposition temperature and the mass loss of the material, and differential scanning calorimetry (DSC) to measure the glass transition temperature (Tg) and the melting temperature. We report the decomposition temperature, the mass loss, and the Tg.

Environmental Stress Testing – Simulating Corrosive and Weathering Conditions

Environmental stress testing evaluates the resistance of materials and components to corrosion, UV radiation, humidity, and other environmental factors. Our comprehensive environmental stress suite includes salt spray, humidity, UV aging, ozone aging, and chemical immersion tests.

• Salt spray and corrosion testing (ASTM B117 / ISO 9227 / NTC 4750) – we expose the specimen to a continuous 5 % NaCl salt spray at 35 °C for a specified duration (e.g., 24, 48, 96, 240, 500 hours). We inspect for rust, pitting, blistering, and loss of adhesion (for coatings). We report the corrosion rating (ASTM D610) and the condition of the specimen.
• Humidity and condensation testing (ASTM D2247 / ISO 6270-2 / NTC 4220) – we expose the specimen to a high-humidity atmosphere (95 % RH) at a controlled temperature (e.g., 40 °C, 60 °C) for a specified duration (e.g., 7, 14, or 28 days). We inspect for blistering, corrosion, and loss of adhesion. We report the condition and the rating.
• UV and xenon arc weathering (ASTM G154 / ISO 4892-3 / NTC 4221 – for UV; ASTM G155 / ISO 4892-2 / NTC 4222 – for xenon arc) – we expose the specimen to UV radiation (UVA-340) or full-spectrum xenon arc radiation for a specified duration (e.g., 100, 500, 1000 hours). We measure the change in color (ΔE*), the loss of gloss, and the loss of mechanical properties. We report the color change, the gloss loss, and the property retention.
• Ozone aging testing (ASTM D1149 / ISO 1431-1 / NTC 3803) – we expose rubber and elastomeric specimens to a controlled ozone atmosphere (e.g., 50 ppb, 100 ppb) at 40 °C for a specified duration (e.g., 24, 48, 72 hours). We inspect for surface cracking and the loss of mechanical properties. We report the crack rating and the property retention.
• Chemical immersion testing (ASTM D543 / ISO 175 / NTC 4628) – we immerse the specimen in a specified chemical (e.g., 10 % HCl, 10 % NaOH, or a hydrocarbon) at a controlled temperature (e.g., 23 °C, 40 °C, 60 °C) for a specified duration (e.g., 7, 14, or 28 days). We measure the changes in mass, dimensions, and mechanical properties. We report the chemical resistance rating and the property retention.

Combined and Multi-Stress Testing – Simulating Real-World Synergistic Effects

In real-world conditions, materials and components are often exposed to multiple stresses simultaneously. Our combined and multi‑stress tests simulate these synergistic effects, providing the most realistic assessment of the product's durability and reliability. This type of testing is essential for products used in the most demanding Colombian environments, such as the oil and gas fields, the mining operations, and the coastal regions.

• Combined thermal and mechanical stress (NTC 7900 – for high-temperature fatigue and creep) – we perform fatigue or creep testing at elevated temperatures (e.g., 150 °C, 300 °C) to evaluate the combined effect of heat and cyclic or sustained loading. We report the fatigue life or the creep rate at the elevated temperature.
• Combined thermal and environmental stress (NTC 7901 – for corrosion at elevated temperature) – we perform corrosion testing (salt spray or immersion) at elevated temperatures (e.g., 50 °C, 80 °C) to simulate the conditions of process equipment. We report the corrosion rate and the pitting depth at the elevated temperature.
• Combined mechanical and environmental stress (NTC 7902 – for stress corrosion cracking and fatigue under corrosion) – we apply a tensile or cyclic stress to the specimen while it is exposed to a corrosive environment (e.g., salt spray, acidic solution). This simulates stress corrosion cracking (SCC) and corrosion fatigue. We report the time to failure, the crack growth rate, and the failure mode.
• Combined vibration and thermal stress (NTC 7903 – for vibration resistance at temperature extremes) – we perform vibration testing (random or sinusoidal) at a specified temperature (e.g., -20 °C or +80 °C) to evaluate the combined effect of vibration and thermal stress on the component's performance. We report the vibration resistance and the condition of the component.
• Combined thermal cycling and humidity (NTC 7904 – for tropical climate simulation) – we subject the specimen to cycles of temperature and humidity (e.g., from 20 °C/50 % RH to 40 °C/95 % RH) to simulate the conditions of the Colombian tropical and coastal regions. We report the degradation of the material and the loss of function.

Complementary Analyses – Failure Analysis, Material Characterization, and Life Prediction

To fully understand the degradation mechanisms and to provide actionable recommendations for improving the product's performance, we complement the stress tests with failure analysis, material characterization, and life prediction. These analyses are essential for certification, root‑cause investigation, and for developing more durable and reliable products.

• Fractographic analysis (SEM and EDS – ASTM E1508 / NTC 7910) – we use scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDS) to examine the fracture surfaces and the wear surfaces, to identify the failure mechanisms (e.g., ductile fracture, brittle fracture, fatigue, corrosion, or wear). We report the SEM images, the EDS spectra, and the failure mechanism.
• Microstructural analysis (ASTM E3 / NTC 7911 – for metals; ASTM D790 / NTC 7912 – for plastics) – we prepare cross-sections of the specimen and examine the microstructure to detect any changes (e.g., grain growth, phase transformation, micro-cracking, or polymer degradation). We report the microstructural observations and the changes.
• Material identification and composition analysis (ASTM E415 / NTC 7913 – for metals; FTIR / NTC 7914 – for polymers) – we use optical emission spectroscopy (OES) or X-ray fluorescence (XRF) to confirm the chemical composition of metals, and FTIR spectroscopy to identify polymers and detect degradation products. We report the composition and any changes.
• Life prediction using accelerated test data (NTC 7915 – Arrhenius and other models) – using the results from the accelerated thermal, environmental, and mechanical tests, we apply the Arrhenius equation (for temperature-dependent processes) or the Miner's rule (for cumulative fatigue damage) to predict the service life of the product under normal operating conditions. We report the predicted service life and the factors of safety.
• Finite element analysis (FEA) correlation (NTC 7916 – validation of simulation models) – we use the experimental results (stress-strain curves, fatigue data, thermal properties) to validate finite element models of the component or system. This allows us to optimize the design and to predict the stress distribution and the failure locations. We report the FEA validation and the recommendations for design improvement.

Test Report and Recognition in the Colombian Industrial and Infrastructure Sector

All procedures described are within the scope of our ISO/IEC 17025 accreditation, with equipment calibrated periodically and traceability to international standards (NIST, PTB). Our test reports are issued in Spanish and include:

• Full identification of the test sample (material, component, or system, manufacturer, lot number, dimensions, and intended application).
• Detailed description of the test methods applied (ASTM/ISO/NTC standards, conditions, and parameters).
• Numerical results: mechanical properties (strength, modulus, elongation, hardness), thermal properties (Tg, decomposition temperature, thermal expansion), environmental resistance (corrosion rate, UV resistance, ozone resistance), and fatigue life (cycles).
• Graphical data: stress-strain curves, S‑N curves, TGA/DSC thermograms, and corrosion vs. time curves.
• Comparative tables against the values specified by the client or against the limits of the NTC 2150 (Tensile), NTC 3804 (Impact), NTC 4750 (Salt spray), and the requirements of the SIC, MinMinas, ANH, and DIAN for equipment and component certification.
• Photographs and micrographs (SEM) of the specimen before and after testing, showing the failure modes, the wear patterns, or the degradation.
• Recommendations for material selection, design improvement, and manufacturing process optimization to enhance the stress resistance and the service life of the product.
• Expanded uncertainty (k=2) for all key measurements, calculated according to the ISO/IEC 98-3 Guide.

These reports are fully accepted by the Superintendencia de Industria y Comercio (SIC) for product registration and quality certification, by the Ministerio de Minas y Energía (MinMinas) and the Agencia Nacional de Hidrocarburos (ANH) for the validation of equipment in the oil, gas, mining, and energy sectors, and by the Dirección de Impuestos y Aduanas Nacionales (DIAN) for tariff classification and quality verification in the import of high‑performance materials and components. Additionally, we offer consulting services for the development of products with superior stress resistance, the selection of appropriate materials and manufacturing processes, and the implementation of reliability improvement programs, contributing to the safety, durability, and economic efficiency of industrial assets and infrastructure in the diverse and demanding Colombian market, from the tropical lowlands to the high Andean mountains and the Caribbean coast.