ASTM E2105-00(2016): STANDARD PRACTICE FOR GENERAL TECHNIQUES OF THERMOGRAVIMETRIC ANALYSIS (TGA) COUPLED WITH INFRARED ANALYSIS (TGA/IR) Thermogravimetric analyses are used for assessment of the thermo-mechanical properties of certain materials. Material characterization, which is defined as the process of measuring and determining the physical, chemical, mechanical, and microstructural properties of materials, has many overlaps with nondestruc- tive testing (NDT) techniques. In other words, in addition to inspection appli- cations, NDT techniques in many cases are applicable for material characteriza- tion or can be integrated into a material characterization technique for a more comprehensive assessment and provide extra information. ASTM E2105-00(2016) provides an overview and guideline for the process and machinery involved to achieve thermogravimetric analysis (TGA) results and experiment with different materials. The scope of the standard practice involves several features that provide the overall use and expecta- tions of the analysis. The practice covers general techniques that provide quali- tative analyses of samples by using the thermogravimetric analysis coupled with infrared spectroscopy. The use of these two methods is usually named as TGA/ IR, which is a great example of materials characterization assisted by nondestruc- tive evaluation methods. A sample of material that undergoes this process is heated in a thermogravimetric furnace at a predetermined temperature profile and typically undergoes through one or more weight losses. Following the weight loss process, the samples are analyzed using infrared spectroscopy to determine the chemical composition and identity. Some thermal analysis instruments are designed to perform both thermogravi- metric analysis and differential scanning calorimetry simultaneously. The instru- ment used for this analysis is called a simultaneous thermal analyzer (STA). The final scope includes the use of values in SI units, regarded as standard. No other units of measurement are included in the standard practice. The newest version, released in 2016, gives feedback about certain changes in the analysis. The previous limitations of different spectroscopy analyses were modified in the new version of the standard, adding several analyses such as mass spectroscopy. Modifications such as the choice of infrared detectors were added to the standard, explaining how TGA/IR detec- tors, such as mercury-cadmium-telluride and deuterated triglycine sulfate are used in these analyses. General tech- niques were modified as well, such as the techniques in evolved gas trapping. These are the means for collecting TGA/ IR data. The gas is collected from the furnace in discrete aliquots, which are then analyzed. The overall application of the standard is to provide general guide- lines for the practice of thermogravim- etry coupled with infrared spectrometric detection and analysis. The practice assumes that the thermogravimetry involved in the practice is proper and well-used. Applications lie in the areas of manu- facturing engineering and material char- acterization. It is important to address the importance of these methods to under- stand the overall chemical composition of materials and samples. The use of ther- mogravimetry in samples will allow the user to understand the chemistry behind the process and get knowledge of how materials change at certain temperatures. STANDARDS EDITOR Hossein Taheri, PhD: Georgia Southern University, Statesboro, GA htaheri@ georgiasouthern.edu REFERENCES ASTM. 2016. ASTM E 2105-00(2016): Standard Practice for General Techniques of Thermogravimetric Analysis (TGA) Coupled with Infrared Analysis. ASTM International, West Conshohocken, PA. AMERICAN NATIONAL DRAFT STANDARDS PROJECT INITIATION ANSI procedures require notification by ANSI- accredited standards developers of the initiation and scope of activities expected to result in new or revised American National Standards. The following is a list of proposed actions and new standards that have been received recently from accredited standards developers. To view information about additional standards for which a project initiation notification has been submitted, and to search approved American National Standards, please visit ansi.org, which is a database of standards information. Note that this database is not exhaustive. Ñ BSR/EIA 364-02D-2012 (R202x), Air Leakage Test Procedure for Electrical Connectors. This is a reaffirmation of ANSI/EIA 364-02D-2012 (R2017). This standard establishes a method to determine the integrity of the seal of the shell, insert, and contact interfaces in an electrical connector. SCANNER | STANDARDSUPDATE 18 M AT E R I A L S E V A L U AT I O N • J A N U A R Y 2 0 2 3 2301 ME Jan New.indd 18 12/20/22 8:15 AM
Ñ BSR/IEEE 1936.1-202x, Standard for Drone Applications Framework. This is a new standard. The standard establishes a framework for support of drone applications. It specifies drone application classes and application scenarios and the required application execution environments. Ñ BSR/IEEE 1937.6-202x, Standard for Unmanned Aerial Vehicle (UAV) Light Detection and Ranging (LiDAR) Remote Sensing Operation. This is a new standard. This standard specifies the operational methods and data management for Unmanned Aerial Vehicle Light Detection and Ranging (LiDAR) remote sensing applications. Ñ BSR/ASTM WK82917-202x, New Specification for Mechanical Couplings and Fittings for use with AWWA C906 & ASTM F714 Polyethylene pipes. This is a new standard. Develop and issue a performance standard (similar to ASTM F1948) for use with AWWA C906/ASTM F714 Polyethylene pipe. Scope may include “Seal Only” (Category 2) mechanical fittings to be used in absence of axial loading or in presence of some supplemental axial loading provided external to the fitting. Ñ BSR HPS N13.6-202x, Occupational Radiation Exposure Records. This is a revision and redesignation of ANSI N13.6-2010 (R2019). The N13.6 standard provides guidance for radiological facility operators for implementing an occupational radiological exposure records program. It sets forth acceptable techniques for the generation, administration, and retention of occupational radiation exposure records and supporting documentation. The standard applies to all facilities that have personnel who are monitored for exposure to radiation or radio- active material. CALL FOR COMMENT ON PROPOSALS LISTED The public comment period has passed for the following draft American National Standards, which are currently in review. Ñ BSR/AWS D9.1/D9.1M-202x, Sheet Metal Welding Code. This is a revision of ANSI/ AWS D9.1/D9.1M-2018. This code covers the arc and braze welding requirements for nonstructural sheet metal fabrications using the commonly welded metals available in sheet form. Requirements and limitations governing procedure and performance qualification are presented, and workmanship and inspection standards are supplied. The informative annexes provide useful information on materials and processes. Ñ BSR/AWS B2.4-202x, Specification for Welding Procedure and Performance Qualification for Thermoplastics. This is a revision of ANSI/ AWS B2.4-2020-AMD1. This specification provides the requirements for qualification of welding procedure specifications and welders for manual, semi-automatic, mechanized, and automatic welding. The welding processes included are electrofusion, hot gas, socket fusion, butt contact fusion, infrared, extrusion welding, flow fusion welding, and solvent cement welding. Base materials, filler materials, qualification variables, and testing requirements are also included. Ñ BSR/ASME B89.1.13-2013 (R202x), Micrometers. This is a reaffirmation of ANSI/ ASME B89.1.13-2013. This Standard is intended to provide the essential require- ments for micrometers as a basis for mutual understanding between manufacturers and consumers. Outside, inside, and depth microm- eters are described in the Standard. Ñ BSR/NSF 14-202x (i125r1), Plastics Piping System Components and Related Materials. This is a revision of ANSI/NSF 14-2021. The physical, performance, and health effects requirements in this standard apply to ther- moplastic and thermoset plastic piping system components including, but not limited to, pipes, fittings, valves, joining materials, gaskets, and appurtenances. Ñ INCITS/ISO/IEC 23053:2022 [202x], Framework for Artificial Intelligence (AI) Systems Using Machine Learning (ML). This is an identical national adoption of ISO/ IEC 23053:2022. Establishes an Artificial Intelligence (AI) and Machine Learning (ML) framework for describing a generic AI system using ML technology. The framework describes the system components and their functions in the AI ecosystem. This document is applicable to all types and sizes of organizations, including public and private companies, government entities, and not-for-profit organizations, that are implementing or using AI systems. Ñ BSR/ASME PTC 47.1-2017 (R202x), Performance Test Code for the Cryogenic Air Separation Unit of an IGCC Power Plant. This is a reaffirmation of ANSI/ASME PTC 47.1-2017. The object of this code is to provide uniform test methods and procedures for conducting performance tests of air separation units (ASUs) supplying products to a gasification block and/ or power block within an integrated gasification combined cycle (IGCC) facility. This Code applies to ASUs of any size, in either a single-train or multitrain configuration. It can be used to measure the performance of an ASU in its normal operating condition, with all equipment in a new, clean, and fully functional condition. Ñ BSR/ASME BPVC Section IX-202x, Welding, Brazing and Fusing Qualifications. This is a revision of ANSI/ASME BPVC Section IX-2021. Section IX of the ASME Boiler and Pressure Vessel Code relates to the qualification of welders, welding operators, brazers, brazing operators, and fusing operators, and the proce- dures employed in welding, brazing, or plastic fusing in accordance with the ASME Boiler and Pressure Vessel Code and the ASME B31 Code for Pressure Piping. Ñ BSR/ASME PTC 19.22-2007 (R202x), Performance Test Code on Data Acquisition Systems. This is a reaffirmation of ANSI/ASME PTC 19.22-2007 (R2017). This Code provides guidance for design, selection, and application of the data acquisition systems used in ASME Code Performance Tests. This Code provides descriptions of the various data acquisition system architectures and information on deter- mining system uncertainties and to assist in selecting and applying these data acquisition systems. ISO DRAFT INTERNATIONAL STANDARDS The following are standards that the International Organization for Standardization (ISO) is considering for approval. The proposals have received substantial support within the technical committee that developed them and are now being circulated to ISO members J A N U A R Y 2 0 2 3 • M AT E R I A L S E V A L U AT I O N 19 2301 ME Jan New.indd 19 12/20/22 8:15 AM
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