American Petroleum Institute (API) specifications for line pipes include several steel grades with wide range of mechanical properties and chemical composition. Almost all, large diameter pipes produced in the Kingdom conform to these specifications and the present demand of this market segment reaches to about 300,000 tons annually. Until recently, all material used in the Kingdom under these ...

BACKGROUND The EQ-5D is a health-related quality of life instrument which provides a simple descriptive health profile and a single index value for health status. The latest version, the EQ-5D-5L, has been translated into more than one hundred languages worldwide - including Thai. This study aims to assess the measurement properties of the Thai version of the EQ-5D-5L (the 5L) compared to the E...

The API 20E, the Enterotube, and routine methods of Cowan and Steel were used in parallel to identify 245 members of the Enterobacteriaceae. The API 20E and conventional methods gave the same identification in all but 2 (0-8%) of the 245 organisms tested. The Enterotube correctly identified 85% of these organisms on the first testing. On re-testing those organisms incorrectly identified the Ent...

A project has been initiated with the aim of extending the model to cover the effect of H 2 S on CO2 corrosion. This report covers one of the main building blocks necessary to complete the mechanistic CO2/H2S corrosion model, namely, electrochemistry of API 5L X65 carbon steel CO2 corrosion in the presence of small amounts of H2S (≤340ppm). The corrosion process monitored by Linear Polarization...

the critical temperatures of a thermomechanical process have a great importance for the final microstructure and mechanical properties of high strength low alloy steels. in this study, the average scheduling was used to determine the critical temperatures of api x70 steel. this steel is extensively used in iran for large diameter, high-pressure gas transportation pipelines as well as the oil tr...