Customer Support: 131 242

  • Shopping Cart
    There are no items in your cart
We noticed you’re not on the correct regional site. Switch to our AMERICAS site for the best experience.
Dismiss alert
Celebrate World Standards Day. Save 10% with code WSD2026 until 31 Oct. Save now

I.S. EN ISO 12241:2008

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by

THERMAL INSULATION FOR BUILDING EQUIPMENT AND INDUSTRIAL INSTALLATIONS - CALCULATION RULES

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

01-01-2008

Superseded date

04-03-2023

Superseded by

I.S. EN ISO 12241:2022

$177.62
Including GST where applicable
Summarise this standard

For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.

Only cited Standards give presumption of conformance to New Approach Directives/Regulations.

Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions and symbols
  3.1 Terms and definitions
  3.2 Definition of symbols
  3.3 Subscripts
4 Calculation methods for heat transfer
  4.1 Fundamental equations for heat transfer
  4.2 Surface temperature
  4.3 Prevention of surface condensation
  4.4 Determination of total heat flow rate for plane walls,
      pipes and spheres
5 Calculation of the temperature change in pipes, vessels and
  containers
  5.1 Longitudinal temperature change in a pipe
  5.2 Temperature change and cooling times in pipes, vessels
      and containers
6 Calculation of cooling and freezing times of stationary liquids
  6.1 Calculation of the cooling time for a given thickness of
      insulation to prevent the freezing of water in a pipe
  6.2 Calculation of the freezing time of water in a pipe
7 Determination of the influence of thermal bridges
  7.1 General
  7.2 Calculation of correction terms for plane surfaces
  7.3 Calculation of correction terms for pipes
8 Underground pipelines
  8.1 General
  8.2 Calculation of heat loss (single line) without channels
  8.3 Other cases
Annex A (normative) - Thermal bridges in pipe insulation
Annex B (informative) - Projecting thermal bridges of roughly
        constant cross-section
Annex C (informative) - Examples
Bibliography

Provides rules for the calculation of heat-transfer-related properties of building equipment and industrial installations, predominantly under steady-state conditions.

DocumentType
Standard
Pages
58
PublisherName
National Standards Authority of Ireland
Status
Superseded
SupersededBy
Supersedes

⚠

A newer version of this standard is available.

View Current Edition
$177.62
Including GST where applicable