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BS EN ISO 15741:2021

BS EN ISO 15741:2021

$142.49

Paints and varnishes. Friction-reduction coatings for the interior of on- and offshore steel pipelines for non-corrosive gases

Published By Publication Date Number of Pages
BSI 2021 32
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This document specifies requirements and methods of test for liquid epoxy paints and internal coatings of such paints in steel pipes and fittings for the conveyance of non-corrosive gas. It also deals with the application of the paint. Other paints or paint systems are not excluded provided they comply with the requirements given in this document. The coating consists of one layer, which is normally shop-applied on blast-cleaned steel by airless spray or other suitable spraying techniques. The applied and cured paint film must be smooth to give the desired reduction in friction. Brush application is only used for small repair jobs.

PDF Catalog

PDF Pages PDF Title
2 undefined
7 Foreword
8 Introduction
9 1 Scope
2 Normative references
10 3 Terms and definitions
4 Coating material
4.1 General
11 4.2 Particular requirements for qualification of the coating material
4.2.1 General
4.2.2 Non-volatile matter (by mass)
4.2.3 Non-volatile matter (by volume)
4.2.4 Viscosity
4.2.5 Density
4.2.6 Ash (residue on ignition)
12 4.2.7 Pot life
4.2.8 Infrared spectrograms
4.2.9 Appearance
4.3 Particular requirements for qualification of the cured paint film
4.3.1 Preparation of test panels
4.3.2 Conditioning of test panels
13 4.3.3 Dry film thickness
4.3.4 Adhesion
4.3.5 Buchholz hardness
4.3.6 Resistance to neutral salt spray
4.3.7 Resistance to artificial ageing
4.3.8 Bend test (conical mandrel)
4.3.9 Resistance to gas pressure variations
14 4.3.10 Resistance to water immersion
4.3.11 Resistance to chemicals
4.3.12 Resistance to hydraulic blistering
4.4 Packaging, labelling and storing
4.5 Quality assurance
4.6 Product data sheet
15 4.7 Qualification certificate
16 4.8 Batch test certificate
17 5 Application of the coating material
5.1 General
18 5.2 Surface preparation
5.3 Paint preparation
5.4 Paint application
19 6 Production control
6.1 Assessment of the coating on the pipes
6.1.1 Appearance
6.1.2 Dry film thickness
6.2 Assessment of the coating on steel panels
6.2.1 Preparation of test panels
6.2.2 Adhesion
6.2.3 Buchholz hardness
6.2.4 Bend test
6.2.5 Curing test
6.2.6 Porosity test
20 7 Repairs
8 Handling, transportation and storage
8.1 Handling
8.2 Transportation to the storage area
8.3 Storage
8.4 Loading coated pipes for transportation
21 Annex A (normative) Determination of ash (refer to 4.2.5)
22 Annex B (normative) Dry film thickness (refer to 6.1.2)
23 Annex C (normative) Resistance to gas pressure variations (refer to 4.3.9)
26 Annex D (normative) Hydraulic-pressure blistering (refer to 4.3.12)
28 Annex E (normative) Porosity of a film of the coating material on a glass panel (refer to 6.2.6)
29 Annex F (normative) Curing test (refer to 6.2.5)
30 Annex G (normative) Wet-sponge test (refer to 6.2.6)
31 Bibliography

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BS EN ISO 15741:2021
$142.49