Abstract: Within the American Society for Testing and Materials (ASTM) a Standard Practice (Z6849Z ) is being developed to provide an objective statistical procedure for comparing air quality simulation modeling results with tracer field data. The practice is limited to steady-state local-scale transport from isolated point sources in simple terrain. Evaluation data having similar external cond...

Untuk mendukung penelitian material maju dibutuhkan sebuah mesin yang dapat melakukan pengujian keausan, salah satunya mengacu pada standar ASTM G65. Jurnal ini berisi proses pembuatan rancang bangun alat uji aus berbasis G65 dengan cakupan perancangan, pembangunan, validasi dan verifikasi.
 Validasi tahap perancangan dilakukan analisis getaran menggunakan software Ansys. Dari data diperol...

There is currently no general-purpose, open standard for storing data produced by three dimensional (3D) imaging systems, such as laser scanners. As a result, producers and consumers of such data rely on proprietary or ad-hoc formats to store and exchange data. There is a critical need in the 3D imaging industry for open standards that promote data interoperability among 3D imaging hardware and...

Two welding methods of FCAW (Flux-cored arc welding) + FCAW, and GTAW (Gas tungsten were compared to identify effective routes for STS 316L/A516-70N clad stainless steel. Since the speed method is slower than that method, amount heat input large, size heat-affected zone formed larger, angular deformation also large. The microstructure specimens investigated by computational simulation, results ...

An assessment of the sensitivities of the critical parameters in the ASTM D6423 documentary standard method for the measurement of pHe in (bio)ethanol has been undertaken. Repeatability of measurements made using the same glass electrode and reproducibility between different glass electrodes have been identified as the main contributors to the uncertainty of the values produced. Strategies to r...

Numerous experiments on individual buildings in California and Florida show that painting roofs white reduces air conditioning load up to 50%, depending on the thermal resistance or amount of insulation under the roof. The savings, of course, are strong functions of the thermal integrity of a building and climate. In earlier work, we have estimated the national energy savings potential from ref...

This research is conducted with a view to investigate performance of concrete containing high volumes of ASTM Class C fly ash. A portland cement concrete, proportioned to have 28-day compressive strength of 6,000 psi (41 N4Pa) is used in this study. Concrete mixes are also proportioned to have various levels of cement replacement by fly ash ranging from 40% to 70% by weight. Concrete performanc...

Introduction: MR-compatible implants and instruments for interventions under MR-imaging can cause susceptibility artifacts [1, 2]. Before clinical diagnostics or intervention, it must be known in what extent those artifacts could overlay the tissue of interest. For that reason, ASTM developed the standard F2119 [2] which describes how to determine the artifact’ size of passive implants. The sta...

The detailed characterisation of middle distillates is essential for a better understanding of reactions involved in refining process. Owing to higher resolution power and enhanced sensitivity, comprehensive two-dimensional gas chromatography (GC x GC) is a powerful tool for improving characterisation of petroleum samples. The aim of this paper is to compare GC x GC and various ASTM methods -- ...