The determination and clear understanding of the design and selection of the weld joints is one of the integral parts of the responsibility of any project engineer, and same equally applies to the welding specifications. But it is still welding personnel who are held responsible for the accurate interpretation of the specification and preparation, assembly and joining of all the components at the various construction phases.
Therefore, the sound knowledge of the weld joints together with the associated symbols, abbreviations and terminology is considered essential for the above mentioned people, since the correct interpretation and application of the terms makes it easier to solve the various fit-up and design problems normally encountered on the daily basis. The present training resource has been designed specifically to give all students and practicing welding engineers with a proper means to get better understanding.
Which, when properly used, will bring them required technical knowledge and skills to be added to their professional toolkit. In turn, professional welders will find it practical and useful when used to improve their job communication and also interpretation of the welding-related information they read from the drawings.
The content of the present practice guide bases on the SI system and includes the basic and derived units together with the rules for their use and conversion factors. The recommendations contained in the pages of this official publications have been presented in a clear way and supplemented with the suggestions to the welding industry for better management of the transition. The main volume is divided into seven basic parts.
The first part defines the scope of the document while the second part provides general information about the SI system including its main advantages, uniqueness, coherence and completeness. The remaining parts cover the units and symbols of the system, style and usage, systems units commonly pertaining to the welding industry, conversions, preferred numbers, their application and value of using them, and transition including main considerations.
Numerous annexes to the book supplement it and provide additional information considered nonmandatory. The publication will be of practical interest to all people involved in the welding industry and any associated works to be performed in compliance with the recognized international standards.
The content of this European Standard was developed by the specialists of the Technical Committee "Environmental Management" no. IO/TC 207 and has subsequently been given a status of the national standard. The main purpose of the standard is to provide all organizations with a framework to achieve better protection of the environments and to properly respond to the environmental conditions keeping due balance with the current socio-economic demands. The document is specifying all applicable requirements enabling organizations to achieve the desired outcomes set for their EMS, standing for the environmental management systems.
The systematic approach applied to the environmental management will provide the management with all required information used to build overall success and also create different options to contribute to the development by means of protection of the environment, mitigating potential effects, providing assistance to the organizations in meeting compliance related obligations, getting the environmental performance enhanced.
This would also include control of the design of the products and services of particular organization and influence them, achieving various operational and financial benefits, communicating related information to the interested parties etc.
The present publication officially released by the American Welding Society, i.e. AWS, is a glossary of the technical terms that are normally used in the welding industry. The purpose of this standard is to establish standard welding terminology to aid during the communication of the relevant welding information. Taking into account that it has been originally intended to serve as a compilation of the welding terms as well as non-standard items in common use.
The terms included in the volume have been arranged in alphabetical sequence. The document defines nearly 1400 welding terms supplemented with almost sixty informative illustrations supporting and clarifying the definitions. In addition to that, the standard includes classification charts together with the corollary information associated with the various welding processes.
All of the terms contained have been prior approved by the AWS; note that this does not apply to the non-standard terms. The decision was made by the authors not to include trademark names and proprietary brands, following the official AWS policy, it means that only generic terminology and definitions have been included. A must-have standard for any person dealing with welding in any way.
The official ASTM publication devoted to the standard test methods used for determining the Rockwell hardness of metals. The test methods covered in the document address the determination of the Rockwell hardness/superficial hardness of metals using the principles of indentation hardness. The publication was released to provide necessary requirements for the hardness testing machines as well as the procedures established for performing such testing.
Some additional information has been included in the annexes to the main part of the standard - they are dealing with the verification of the testing machines, standardizing machines, standardization of the indenters and hardness test blocks, correction of the hardness values obtained during the testing of the convex cylindrical surfaces; finally, the provide guidelines on how to determine the minimum thickness of the test pieces.
Some of the non-mandatory technical information such as the examples of the procedures to determine the uncertainty of the Rockwell hardness of the metallic materials has also been provided for easy reference. The volume will be useful for the people dealing with the mechanical properties of metallic construction materials.
The present API Specification is intended to provide the coverage of the minimum technical requirements applicable to the design, fabrication and subsequent testing of the oil and gas separators of oil-field type as well as of the oil-gas-water separators; the content of the document covers the vertical and spherical separators as well as the single/double barrel separators.
The volume starts with the introduction where the scope of the Specification is outlined and some general information is given, which is necessary for understanding of the rest. The definitions used throughout the document have been provided in the same section. The next chapter of the Specification is dealing with the materials, their proper selection and associated corrosion consideration. Then a chapter comes fully devoted to the design of the separators and covering their sizing, temperature/pressure ratings etc.
Sample calculation is also provided in this chapter. The rest of the chapters address marking including API and ASME Code nameplates and stamping, inspection and rejection issues including ASME inspection. Six annexes to the main content supplement it providing corrosion guidelines and process considerations, calculations, design information etc
The American National Standard officially provides all applicable requirements to the dry seal pipe threads. Subject threads are based on the American pipe thread but they significantly differ from USA pipe thread because they are commonly designed to seal the pressure tight joints without having top use additional sealing components. In order to accomplish this purpose, some modification shall be made to the form of the thread and greater manufacturing accuracy shall be reached.
The roots of the internal and external threads truncate more than crests so their flats are slightly wider than crests. This results in the metal to metal contact occurring at the roots and crests either at the time of flank contact or prior to that... This document addresses different types of threads, notations and designations, applications, assembly limitations, tolerances and forms, basic dimensions of the threads and many other information and data.
Three appendices deal with the symbols and formulas, suggested tap drill sizes, specific pipe threads such as special and special-extra short and others. Data tables at the end of the standard provide additional information on basic dimensions, recommended assembly limitations etc.
This is the official release of the BS ISO 19018-04 standard. The publication is divided into several chapters. The first one defines the scope of the document, the following ones address related normative references and special units applicable to the maritime navigation; the others are as below - Course, heading, track and speed; Bearings; Corrections; Influence of currents and winds; Geographical coordinates, positions, lines, graphical symbols; Waypoint navigation; Terms of time; Astronomical navigation; Depth of water and tides; Terrestrial magnetism; Radar navigation; LORAN-C; Global Positioning System.
This team of authors and editors who prepared on this standard, made their best trying to include the maximum possible number of important and relevant abbreviations, maritime terms and graphical systems - they are all frequently used in marine navigation on board vessels. It shall be noted, however, that the abbreviations listed in this paper should not actually be used in math formulae; the symbols that are allowed to be used in formulae are mentioned. The navigation itself if the process of finding the exact position of the ship; it also includes the planning, recording and controlling of how the vessel is moving from one position to another.