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Development of methods for quality assurance of preinsulated joints; Utveckling av metoder foer kvalitetssaekring av manteroerskarvar

Abstract

Quality assurance (QA) for a preinsulated joint begins with the planning and request for quotations, and is not complete until the final document concerning the projects is filed. The aim of this project has therefore meant that the entire process, with the emphasis on the control methods, has been evaluated to identify possible improvements for the QA of joining preinsulated pipes. Our results can be summarized as follows: Efforts made at Quality Assurance must exist at all stages and levels of the process. Small improvements in a large number of stages can give a good result compared with a larger effort in a specific stage. The driving force for a well functioning QA is a control function with precisely defined areas of responsibility and authority. Further a well developed internal control system at the contractor`s is necessary, which in turn means work sheets and control methods including statements concerning tolerances. The purchaser must ensure that the inspectors check list and the work sheets from the various contractors are included in the quotation. Check lists and work sheets must include parameters which are aimed at establishing good premises for subsequent stages of the work. To the extent that such documents do  More>>
Authors:
Cronholm, L Aa; Westin, R [1] 
  1. Studsvik AB, Nykoeping (Sweden)
Publication Date:
Jul 01, 1992
Product Type:
Technical Report
Report Number:
SVF-450; STUDSVIK-UD-91-23
Reference Number:
SCA: 360603; PA: SWD-92:007288; SN: 93000918373
Resource Relation:
Other Information: PBD: Jul 1992
Subject:
36 MATERIALS SCIENCE; PIPE JOINTS; QUALITY ASSURANCE; HEAT DISTRIBUTION SYSTEMS; DISTRICT HEATING; INSPECTION; FAILURES; PIPES; 360603; MECHANICAL PROPERTIES
OSTI ID:
10113708
Research Organizations:
Stiftelsen foer Vaermeteknisk Forskning, Stockholm (Sweden); Studsvik AB, Nykoeping (Sweden)
Country of Origin:
Sweden
Language:
Swedish
Other Identifying Numbers:
Other: ON: DE93753062; TRN: SE9207288
Availability:
OSTI; NTIS
Submitting Site:
SWD
Size:
64 p.
Announcement Date:
Jun 30, 2005

Citation Formats

Cronholm, L Aa, and Westin, R. Development of methods for quality assurance of preinsulated joints; Utveckling av metoder foer kvalitetssaekring av manteroerskarvar. Sweden: N. p., 1992. Web.
Cronholm, L Aa, & Westin, R. Development of methods for quality assurance of preinsulated joints; Utveckling av metoder foer kvalitetssaekring av manteroerskarvar. Sweden.
Cronholm, L Aa, and Westin, R. 1992. "Development of methods for quality assurance of preinsulated joints; Utveckling av metoder foer kvalitetssaekring av manteroerskarvar." Sweden.
@misc{etde_10113708,
title = {Development of methods for quality assurance of preinsulated joints; Utveckling av metoder foer kvalitetssaekring av manteroerskarvar}
author = {Cronholm, L Aa, and Westin, R}
abstractNote = {Quality assurance (QA) for a preinsulated joint begins with the planning and request for quotations, and is not complete until the final document concerning the projects is filed. The aim of this project has therefore meant that the entire process, with the emphasis on the control methods, has been evaluated to identify possible improvements for the QA of joining preinsulated pipes. Our results can be summarized as follows: Efforts made at Quality Assurance must exist at all stages and levels of the process. Small improvements in a large number of stages can give a good result compared with a larger effort in a specific stage. The driving force for a well functioning QA is a control function with precisely defined areas of responsibility and authority. Further a well developed internal control system at the contractor`s is necessary, which in turn means work sheets and control methods including statements concerning tolerances. The purchaser must ensure that the inspectors check list and the work sheets from the various contractors are included in the quotation. Check lists and work sheets must include parameters which are aimed at establishing good premises for subsequent stages of the work. To the extent that such documents do not exist in a generalized form, project specific documentation must be established. Reports of experience of damage and failure in connection with pipe laying and operation must be felt to be relevant and reliable. The suggestions presented in this report should not lead to any costly sacrifices of magnitude. On the other hand, a consistency is necessary when introducing them to achieve the potential QA improvements. (au) (18 figs.).}
place = {Sweden}
year = {1992}
month = {Jul}
}