18.07.2017
ASTM F 998—04 — STANDARD SPECIFICATION FOR CENTRIFUGAL PUMP, SHIPBOARD USE

This is the official ASTM standard specification no. F998-04 dealing with the centrifugal pumps to be used on board ships/offshore structures. It covers all requirements that would normally apply to their design as well as construction, and addresses three classes of service, namely freshwater, seawater ad hydrocarbon pumps. In the latter case, the pumps less than 1500 are covered.

The arrangement of the document is pretty regular for the ASTM standard specifications - it covers all aspects including the nomenclature and terminology, ordering info, materials to be used for manufacturing, general requirements that would apply, design matters, performance requirements, painting, coating, equipment identification plates, testing methods and applicable requirements (including shock and vibration testing), various technical documentation, packaging, storage and preservation of the manufactured equipment, quality assurance principles, reference technical documents and regulations... The publication addresses all possible aspects relating to the production, testing and certification of the centrifugal pumps, starting from the very design phase.

3024 Viewing 0 Comments Read more
18.07.2017
ASTM F 765—93 R98 — STANDARD SPECIFICATION FOR WILDCATS, SHIP ANCHOR CHAIN

The specification that we are presenting to your attention today addresses the wildcats that are currently utilized in windlasses for hauling in and paying out the anchor chains on board marine vessels and offshore facilities. When ship has been anchored, or anchor has been housed, the chain stopper is used to secure the anchor chain.

The wildcats that are referred to in the present standard specification by ASTM are of the five whelp type and shall to be used with stud link chains conforming to the ABS Grades 1, 2 and 3. The dimensions of these wildcats have been provided for the anchor chains in integral three-millimeter steps, ranging in size from 19 to 104 mm. The dimensions in intermediate steps (1.5 mm) have not been provided in this paper; however, the use of the wildcats of such sizes is also permitted within the scope of the present regulatory document.

The material arrangement in the standard specification is as follows: scope - referenced documents - classification - description of terms - ordering information - materials and manufacture - dimensions - workmanship, finish, and appearance - test methods - inspection - marking - packaging - keywords. As it is the case with all ASTM publications, full coverage of all technical aspects makes the publication practical and useful.

3120 Views 0 Comments Read more
18.07.2017
ASTM F 722—82 R98 — STANDARD SPECIFICATION FOR WELDED POINTS FOR SHIPBOARD PIPING SYSTEMS

This standard specification no. F722-82 was first released in 1982 and then got reapproved in 1998 - it covers all typical details of the welded joints that are nowadays in common use when constructing various piping systems on board ships. Such joints may be utilized provided that the WP (welding procedures) proposed for use, were qualified as per the applicable regulations and/or rules.

The publication consists of five parts - the first part defines the scope of the document, while the second part provides the list of referenced documents. The third part provides information on the application, service, limitations, and list of weld joint details. The fourth part of the document explains piping classifications and butt weld reinforcements. The last part of the paper contains keywords. there are several tables in the document providing necessary data, e.g. maximum but weld reinforcement, and figures for better illustration o the technical information, such as the cross-section of the butt joint, etc.

An excellent technical reference for welders and welding engineers, designers and inspectors. You will not only find the requirements to the welding but will also get some minimum knowledge of the basics.

2823 Viewing 0 Comments Read more
18.07.2017
ASTM F 1756—97A — STANDARD GUIDE FOR IMPLEMENTATION OF A FLEET MANAGEMENT SYSTEM NETWORK

This official ASTM guide is released to provide the industry professionals with a good overview and guidance for the proper selection and further implementation of the FMS by ship operators and owners. The abbreviation FMS stands for the Fleet Management Systems. Such system is mission critical 24x265 and is generally a computer system consisting of one or more LITP and one or more SITP, which are the land-based and shipboard information technology platforms, correspondingly. The SITP enables multiple computers on board the ship to share the data and to communicate with the other ships or with the shore base.

The SITP itself consists of several components, such as the hardware, software, data repository, procedures providing the ability to store and transfer data. It is not the actual intention of the authors of this document to deal with all requirements that are applicable to SITP, forming a path for the data for the direct controlling of the operations and conditions of ships or their systems. It shall be possible for all navigation equipment belonging to the Navigational Equipment Bus to be able to operate and display all essential data , being totally independent of the FMS. Same applies to the units resident on the Control, Monitoring and Alarm Bus. All values in this document are in SI units.

2466 Views 0 Comments Read more
18.07.2017
ASTM F 1754—97 R04 — STANDARD GUIDE FOR MARINE VESSEL STRUCTURAL INSPECTION CONSIDERATIONS

The present guide developed by ASTM was released to cover the technical information necessary for the development/implementation of the inspection process as applicable to marine ships. The publication will provide required considerations for the people who are interested in making proper structural survey plans for marine ships, and are dealing with planning as well as organizing of the surveys, especially at the design phase of the shipbuilding process. This book may easily be used together with any other regulatory document; however, it may also serve as the technical basis for planning these surveys and their implementation of the survey plans in case no other applicable requirements are available.

The standard provides all interested parties, i.e. vessel owners, construction yards, operators and designers with a plan to develop the inspection process covering all phases of the operational life of the ship - such plan may be developed and implemented in concept with Class of Flag State inspections. In addition to that, the guide will be helpful when used as the basis for the development of the CAP (corrective action plan) for typical deviations and/of deficiencies related to the ship's structure. Note that the safety aspects have not been addressed in the document and remain the responsibility of the involved parties.

3553 Viewing 0 Comments Read more
18.07.2017
ASTM F 1511—04 — STANDARD SPECIFICATION FOR MECHANICAL SEALS FOR SHIPBOARD PUMP APPLICATIONS

The present standard specification ASTM F1511-04 covers the mechanical end-face seals for the positive displacement and centrifugal shipboard pumps. It does not, however, address some types of the seals as follows - oil and lip seals, labyrinth or circumferential types of seals. The values stated within the document are in standard inch-pound units. The SI units have been provided for info only in parentheses. The Appendix S1 to this standard specification contains the special requirements for the United States Navy Shipboard Pump Applications. Within the present document, seals are classified by their type, class and grade.

The categories have been divided according to the application arrangement in the equipment in which thee seals are installed. Talking about the materials, the mechanical seals addressed in this standard publication, must be manufactured using the materials selected from the Tables 1-3 of this standard specification, with all parts being subject to review of the pressure/velocity, temperature and corrosion resistance. The publication will be useful for the crew members dealing with the ordering and installation of subject seals as it provides quite clear reference.

2944 Viewing 0 Comments Read more
18.07.2017
ASTM F 1455—92 R01 — STANDARD GUIDE FOR SELECTION OF STRUCTURAL DETAILS FOR SHIP CONSTRUCTION

The declared principal intention of this standard guide was to depict the recommended practices relating to the design of vessel's structural details. We all clearly understand the huge importance of the structural details - their fabrication and layout play significant role in making the costs for the hull construction, the details may often be the source of various failures like fractures that could easily lead to the damage of the ship's hull; another important aspect of the problem in question is that the analysis of hull structural details have been neglected by the researchers so far. It should also be noted that today's trends towards decreasing the scantlings of the vessel's hull may also increase the potential of the damage happening to the details.

Taking into account the noted lack of the analytical and experimental efforts to the research of the problems touching the structural details, the determination in this case was left solely to the designers/draftsmen with little to no input from engineering side. This publication gives a recommended listing of the structural details to be used when constructing the vessel - this listing list includes the details that have already failed in service and are therefore not recommended for any further use.

3373 Viewing 0 Comments Read more
18.07.2017
ASTM F 1182—90 R01 — STANDARD SPECIFICATION FOR ANODES, SACRIFICIAL ZINC ALLOY

The present standard specification ASTM F1145-92 was released to cover all requirements applicable to zinc anodes in the various forms, used for corrosion (cathodic) protection of metals and metal alloys. Such anodes are used to protect surface ships as well as underwater vehicles, various structures made of steel and alloys, inner side of sea chests of the ships and offshore installations, heat exchangers and condensers (the seawater side has to be protected as necessary).

Among the matters addressed within this publication, there are the general scope of the document, referenced regulatory papers, classification of the products, ordering information, materials the anodes are made of and manufacture process, chemical composition and mechanical properties of the materials, other applicable requirements, dimensions, mass, and permissible variations of the manufactured anodes, workmanship, finishing and appearance, sampling and specimen preparation, test methods and inspection, certification principles, product marking and packaging, keywords - as you can see, the paper contains all required information to make proper choice and order the anodes for the protection of the ship's hull from corrosion in the seawater.

3031 View 0 Comments Read more
« 1 2 3 4 »
Enter the site
Read Later

    The "Read Later" function allows you to add material to this block with just one click. Just click on the icon and read the articles that interest you at any convenient time.

Top Posts
Rate my site