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To what number of decimals I should round off my test pressures for multilayer pipes?
Typical rounding off values for the test pressures is one decimal. This is also applicable for e.g. ...
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To what number of decimals I should round off my test pressures for multilayer pipes?
Typical rounding off values for the test pressures is one decimal. This is also applicable for e.g. ...
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In ISO 9080 evaluations, is data type A the same as ductile and data type B the same is brittle?
No, the data types (A and B) are used for dividing the data into two data sets that are used for cal...
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What should I do with my 110°C pressure test data of metal multilayer (multilayer M), leave them out or use in them in my ISO 9080 calculation model?
Most metal multilayer pipes are not that much affected by the difference in outer environment (water...
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What is the Standard Dimension Ratio (SDR)?
The SDR or the ‘Standard Dimension Ratio’ and refers to the geometry of the pipe. SDR is defined...
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We understand that chlorine and other disinfectants have a negative effect on the lifetime of piping systems. Do you have an estimation on how much the lifetime is reduced for hypochlorite and chlorine dioxide?
Disinfectants affect the piping system independently of pipe material. It is important to point out ...
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Why is my multilayer M pipe with the highest SDRm not the weakest pipe in my dimension group?
It should be taken into consideration the SDRm rule in the ISO standard is only a rule of thumb for ...
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How can I assess the design pressure for metal multilayer pipes for different applications?
In order to assess the lifetime you need to have an ISO 9080 (ISO 21003) evaluation performed. You u...
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