ДСТУ EN ISO 21809-1:2022 Нефтяная и газовая промышленность. Наружные покровы подземных или подводных трубопроводов в трубопроводных транспортных системах. Часть 1. Полиолефиновые покровы (три слоя PE и три сл...
ДСТУ EN ISO 21809-1:2022
(EN ISO 21809-1:2018, IDT;
ISO 21809-1:2018, IDT)
Нафтова і газова промисловість. Зовнішні покриви підземних або
підводних
трубопроводів у трубопровідних транспортних системах.
Частина 1. Поліолефінові покриви (три шари РЕ та три шари РР)
Не є офіційним виданням.
Офіційне видання розповсюджує національний орган стандартизації
(ДП «УкрНДНЦ» http://uas.gov.ua)
Contents
European foreword
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Conformance
4.1 Rounding
4.2 Compliance with this document
5 Symbols and abbreviated terms
5.1 Symbols
5.2 Abbreviations
6 Information supplied by the purchaser
6.1 General information
6.2 Additional information
7 Coating classification
7.1 General
7.2 Coating classes
7.3 Coating thickness classes
8 Qualification processes
8.1 General — Qualification scheme
8.2 Application procedure specification
8.3 Pre-production trial (PPT)
8.4 Inspection and testing plan (ITP)
8.5 Procedure qualification trial (PQT)
9 Coating material qualification
9.1 Composition of the coating system
9.2 Qualification of the coating materials
9.2.1 General requirements
9.2.2 Epoxy material
9.2.3 Adhesive material
9.2.4 PE/PP top layer material
9.3 Batch certificate
9.4 Storage and handling of coating materials
10 Coating system qualification
11 Application of the coating system
11.1 General
11.2 Surface preparation
11.2.1 Initial preparation
11.2.2 Abrasive blast cleaning — Cleanliness and surface roughness
11.2.3 Surface dust contamination
11.2.4 Surface pre-treatment and salt contamination
11.3 Coating application
11.3.1 General
11.3.2 Epoxy application
11.3.3 Adhesive application
11.3.4 PE/PP application
11.3.5 Rough coat application
11.4 Cutback
12 Inspection and testing
12.1 General
12.2 Re-testing
13 Coating repairs
14 Marking
14.1 General
14.2 Required markings
15 Handling and storage in the applicator's facilities
15.1 Handling
15.2 Storage
16 Test reports and certificate of compliance
Annex A (normative) Inspection of thickness
Annex B (normative) Holiday detection test
Annex C (normative) Peel strength test
Annex D (normative) Thermal analysis of epoxy and cured epoxy coating film with Tg ≤ 115°C
Annex E (normative) Impact test
Annex F (normative) Indentation test
Annex G (normative) UV ageing test and thermal ageing test
Annex H (normative) Cathodic dishondment test
Annex I (normative) Flexibility test
Annex J (normative) Gel time of the epoxy powder
Annex K (normative) Total volatile/moisture content of the epoxy powder — Mass loss
Annex L (normative) Hot water immersion test
Annex M (normative) Density of epoxy powder
Bibliography
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