Petroleum, Petroleum products, Density measurement, Density, Test equipment, Specimen preparation, Testing conditions, Test specimens, Calibration, Reproducibility

Introduces the reader to the production of the products in a refinery • Introduces the reader to the types of test methods applied to petroleum products, including the need for specifications • Provides detailed explanations for accurately analyzing and characterizing modern petroleum products • Rewritten to include new and evolving test methods • Updates on the evolving test methods and new test methods as well as the various environmental regulations are presented

This is a directory of standardized methods for the testing and analysis of petroleum-based products, published annually in two volumes. As particular technical advances are made, faster and more accurate procedures present themselves and have to be assessed. The methods of analysis contained in this publication are constantly reviewed and revised. Information on the new developments within the industry are also included. New methods have ISO classifications.

GB/T 17411-2012 Code for welding of steel structures English-translated version

In the fields of work in industrial areas, engineers and project implementers work to find means to develop the work and complete it at time indicated in an implementation plan and to avoid delay in the progress of the project for many reasons that we cannot summarize here for its bifurcation and relationship of activities with each other, but we mention the most important reason at which the failure to follow the standard specifications of activities construction of the project by engineers or technicians. These standards and codes are usually mentioned their sources in the project documents. The deviation from following the standards and codes leads to technical errors and consequently to the re-work and an addition of unwanted time to the project activity, and when errors are repeated due to non-compliance with international standards, this will result in an accumulation of the unwanted time in the project, ultimately leads to deviating the project plan.