OIT Measurement Instruments
Determination of Oxidation Induction Time
Oxidation Induction Time (OIT) is a thermal analysis technique used to measure the oxidative stability of materials. It is a valuable tool for studying the isothermal oxidative degradation of polymers, oils, and other materials. OIT can also be performed under elevated pressures to accelerate reactions.
Advantages
Modular Design
Modularity is at the core of METTLER TOLEDO thermal analyzers enabling us to offer tailor-made solutions for almost all academic and industrial applications. Should requirements change after installation, the instrument can be upgraded as needed.
Reliable Automation
Our TGA and DSC systems support fully automated workflows – from sample loading to result analysis and report generation. Up to 34 samples can be processed by our robust, factory endurance-tested sample robot.
One Software for All Thermal Analysis Instruments
STARe is the most complete and comprehensive thermal analysis software, providing unrivalled flexibility, unlimited evaluation possibilities and the technical controls to support compliance.
Innovative Sensor Technology
Put your trust in METTLER TOLEDO’s world-leading sensor technology: Whether you purchase a DSC, TGA, TMA or DMA instrument, we guarantee exceptional sensitivity and highly accurate measurement results.
Simple Operation
STARe functionality is readily accessible from the software's intuitive ribbon interface. Standard features such as OneClick™ and multiple curve handling, as well as options like Quality Control and Reference Library, simplify daily lab work.
High-Level Competence & Support
Our global network of application specialists gives you access to the latest application know-how. Dedicated application specialists help to ensure that you obtain the most accurate thermal analysis results.
有用的相關連結
STARe Thermal Analysis Software
STARe software is powerful, versatile, and provides nearly infinite evaluation possibilities. Automatic result assessment dramatically enhances efficiency, while the unique integrated database ensures the highest level of data security. 瞭解更多
Smart Options and Accessories
Create the perfect configuration for your application with our wide range of quickly interchangeable options and accessories. Among the many options available are various interfaces for hyphenated techniques like MS, FTIR, GC/MS, Micro GC/(MS), intracoolers and a sorption accessory. 瞭解更多
Thermal Analysis Crucibles
We offer a broad range of crucibles, which are sample containers for thermal analysis. High quality crucibles are available in a variety of materials and shapes to cover virtually any thermal analysis application. 瞭解更多
Thermal Analysis Applications
Our thermal analysis market support team has prepared more than 300 ready-to-use applications tailored to various industries. Collated in an easy-to-search database, users can quickly find the application that best suits their needs. 瞭解更多
Thermal Analysis Publications
UserCom is a technical journal published twice a year for users of thermal analysis. It contains practical tips and describes interesting applications from different fields. It features a news section with the latest technological developments in the field of materials characterization. 瞭解更多
Training and Knowledge
Through in-person and online learning options, we work closely with customers to help optimize their skills and confidence. This includes customized trainings, hands-on workshops, and online learning resources, which are frequently updated with fresh content. 瞭解更多
探索我們專為您的設備量身打造的服務
根據國際熱分析及量熱學聯合會 (ICTAC)，熱分析係指一組技術，其中會根據溫度測量一物質的物理特性，而該物質受某個經過管控的溫度程式所約束。
FAQs
What does “OIT” stand for?
OIT is short for “oxidation induction time”. The oxidation induction time (OIT) is the time from the initial exposure to oxygen to the onset of exothermic decomposition at the isothermal temperature of the test.
What does “OOT” stand for?
OOT is short for “oxidation onset temperature”. The oxidation onset temperature (OOT) is the temperature at the onset of exothermic decomposition measured at a given heating rate in an oxidative environment.
What is the difference between OIT and OOT?
Oxidation induction time (OIT) is an isothermal measurement that determines how long it takes for oxidation to start at a defined temperature. Oxidation onset temperature (OOT) has a dynamic heating rate to determine the temperature when oxidation starts.
Why is a high-pressure DSC useful for determining OIT?
A HP DSC can perform an OIT experiment under elevated pressures. Some materials have a long OIT, and the elevated pressures will accelerate the oxidization time, making the reaction time faster.
What are the standard methods for OIT when measured under ambient pressures?
- ASTM D3895 OIT of polyolefins by DSC
- ASTM E1858 OIT of hydrocarbons by DSC
- EN 728 OIT of polyolefin pipes and fittings
- ISO 11357 OIT of plastics by DSC
What are the standard methods for OIT when measured under elevated pressures?
- ASTM D5483 OIT of lubricating greases by pressure DSC
- ASTM D5885 OIT of polyolefin geosynthetics by HPDSC
- ASTM D6186 OIT of lubricating oils by pressure DSC
- CEC L-85-T-99 Hot surface oxidation of lubricating oils by pressure DSC
Can I use a TGA for measuring OIT?
Yes, a TGA can measure OIT. Most decompositions are accompanied by a weight loss, therefore, OIT can be performed with a TGA above 700 °C.