ДСТУ EN ISO 12944-4:2022 Краски и лаки. Защита от коррозии стальных конструкций защитными лакокрасочными системами. Часть 4. Типы поверхности и ее приготовление (EN ISO 12944-4:2017, IDT; ISO 12944-4:2017, ID...



ДСТУ EN ISO 12944-4:2022
(EN ISO 12944-4:2017, IDT; ISO 12944-4:2017, IDT)

Фарби та лаки. Захист від корозії сталевих конструкцій захисними
лакофарбовими системами. Частина 4. Типи поверхні та її готування

 
   
 
 
     
Не є офіційним виданням.
Офіційне видання розповсюджує національний орган стандартизації
(ДП «УкрНДНЦ» http://uas.gov.ua)

Contents

Foreword

Introduction

1 Scope

2 Normative references

3 Terms and definitions

4 General

5 Types of surface to be prepared

5.1 General

5.2 Uncoated surfaces

5.3 Metal-coated surfaces

5.4 Surfaces painted with prefabrication primer

5.5 Other painted surfaces

5.6 Surfaces with chemical treatment

6 Surface preparation methods

6.1 Genral

6.2 Water, solvent and chemical cleaning

6.3 Mechanical cleaning

7 Surface preparation grades

7.1 General

7.2 Uncoated surfaces

7.3 Metal-coated surfaces

7.4 Surfaces painted with prefabrication primer

7.5 Other painted surfaces

8 Surface profile (roughness) and surface profile grading

9 Assessment of prepared surfaces

10 Temporary protection of prepared surfaces from corrosion and/or contamination

11 Preparation of temporarily or partly protected surfaces before application of further coatings

12 Preparation of hot-dip-galvanized surfaces

12.1 Unweathered surfaces

12.2 Weathered surfaces

13 Preparation of thermally sprayed metal (zinc and aluminium) surfaces

14 Preparation of zinc-electroplated and sherardized surfaces

15 Preparation of other coated surfaces

16 Recommendations regarding pollution and the environment

17 Health and safety

Annex A primary (overall) surface preparation

Annex B (normative) Standard preparation grades for secondary (partial) surface preparation

Annex C (informative) Procedures for removal of extraneous layers and foreign matter, native layers and contaminants

Bibliography