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NA 054

DIN Standards Committee Plastics

Abstract

This document specifies procedures suitable for the analysis of data which, when converted into logarithms of the values, have either a normal or a skewed distribution. It is intended for use with test methods and referring standards for glass-reinforced thermosetting plastics (GRP) pipes or fittings for the analysis of properties as a function of time. However, it can also be used for the analysis of other data. Two methods are specified, which are used depending on the nature of the data. Extrapolation using these techniques typically extends a trend from data gathered over a period of approximately 10 000 h to a prediction of the property at 50 years, which is the typical maximum extrapolation time. This document only addresses the analysis of data. The test procedures for collecting the data, the number of samples required and the time period over which data are collected are covered by the referring standards and/ or test methods. Clause 6 discusses how the data analysis methods are applied to product testing and design.

Begin

2024-08-16

WI

00155A1Y

Planned document number

DIN EN ISO 10928

Project number

05402353

Responsible national committee

NA 054-05-09 AA - Plastics pipes of thermosetting materials  

Responsible european committee

CEN/TC 155/WG 14 - Systems of glass-reinforced thermosetting plastics for all applications - Polyester, epoxy and polyester resin based concrete  

Responsible international committee

ISO/TC 138/SC 6/WG 1 - Methods of test  

draft standard

Plastics piping systems - Glass-reinforced thermosetting plastics (GRP) pipes and fittings - Methods for regression analysis and their use (ISO 10928:2024), German and English version prEN ISO 10928:2024
2024-11
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previous edition(s)

Corrigenda to DIN EN 705:1994-08
1995-12

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Plastics piping systems - Glass-reinforced thermosetting plastics (GRP) pipes and fittings - Methods for regression analyses and their use; German version EN 705:1994
1994-08

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