Expertisein Surface Treatment

SURFACE TREATMENT
Surface preparation
Coating systems
Corrosion protectionSurface Treatment
Expertise in Surface Treatment

Content
1 Manual.................................................................................................................................................................. 3
2 General................................................................................................................................................................. 4
2.1 Terms and definitions....................................................................................................................................... 4
2.2 Durability and corrosion protection categories................................................................................................... 5
3 Surface Treatment at SAMSON................................................................................................................................ 6
3.1 Surface preparation........................................................................................................................................ 6
4 Coating systems...................................................................................................................................................... 7
4.1 General description of the painting process....................................................................................................... 7
4.1.1 Powder coating...................................................................................................................................... 7
4.1.2 Wet painting – Air gun spraying............................................................................................................. 8
4.2 Coating systems for control valves.................................................................................................................... 9
4.2.1 Corrosivity category up to C3, medium durability..................................................................................... 9
4.2.2 Corrosivity category up to C4, low durability.......................................................................................... 11
4.2.3 Corrosivity category up to C5, high durability........................................................................................ 11
4.2.4 Corrosivity category up to C5, very high durability ................................................................................ 13
4.2.5 Paint coatings for insulated or non-insulated steel or stainless steel in highly corrosive ambientconditions and cryogenic applications (cryogenic ambient conditions)...................................................... 13
4.2.6 High-temperature-resistant systems........................................................................................................ 14
4.3 Coating systems for valve accessories............................................................................................................. 15
4.3.1 Corrosivity category up to C2, up to high durability................................................................................ 15
4.4 Customized solutions..................................................................................................................................... 17
5 Test methods......................................................................................................................................................... 18
6 Environmental protection....................................................................................................................................... 20
7 Relevant standards................................................................................................................................................ 212

Surface Treatment
Expertise in Surface Treatment

1 Manual
Scope
Surface treatment especially to provide corrosion protection is becoming increasingly important. This manual provides
information on the surface treatment of SAMSON products and assists users to select a suitable protective coating system.

ValidityThis manual applies to control valves and valve accessories manufactured by SAMSON AKTIENGESELLSCHAFT.
Further information to products can be found in the corresponding data sheets.

Intended use
This manual is intended to assist planners and operators to select a suitable protective coating system for a control valve
or instrument.
Valves and instruments must only be commissioned and serviced by qualified personnel. For further details refer to themounting and operating instructions of the product and the protective coating specifications.

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Surface Treatment
Expertise in Surface Treatment

2 General
2.1 Terms and definitions
Control valves are used in diverse applications and locations. The ambient conditions at the site of installation varysignificantly and place different demands on the surface finish. Corrosion can arise and damage valve components.
SAMSON has the right protective coating system to suit all types of environmental conditions (e.g. abrasive wear or
corrosive environment).

What is corrosion?
The term "corrosion" can be applied generally to mean a process involving the deterioration of materials and often eventhe failure of a product.
Corrosion is the reaction of a metallic material to its environment, which effects measurable change in the material andcan lead to impairment of the function of a metal construction part or of an entire system.
The reaction can be affected by environmental effects as well as by mechanical or dynamic stress.
Combined effects
Mechanical

Wear

ChemicalSliding abrasion
Rolling wear
Rolling/sliding wear
Fretting wear
Cavitation wear
Erosive wear
Solid particle erosion
High velocity erosion

Wear corrosion
Fretting corrosion
Corrosion
DIN EN ISO 8044
Cavitation corrosion
Erosion corrosion

There are different kinds of corrosion, such as crevice corrosion, pitting corrosion, shallow pitting or surface corrosion, as
well as various causes of corrosion.
Corrosion damage occurs when a component's function is impaired or it fails completely.

4Surface Treatment
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2.2 Durability and corrosion protection categories
DIN EN ISO 12944-1 determines the various coating durability ranges and DIN EN ISO 12944-2 classifies the corrosivity
categories for protective coating systems.
The durability does not constitute a warranty period. Durability is a technical term to help users establish a maintenancescheme. The durability describes the time period within which a painted component is protected against corrosion.

DIN EN ISO 12944-1
Durability

Time spanLow (L)Up to 7 years

Medium (M)7 to 15 years

High (H)

15 to 25 years

Very high (VH)

More than 25 years

The corrosivity categories provide a uniform classification to clearly assign corrosion stress and environmental conditions.
This helps the selection of a suitable protective coating system for each application.
DIN EN ISO 12944-2
Corrosivity category

Typical ambient conditions

C1 (very low)

Heated buildings with clean atmospheres

C2 (low)

Atmospheres with low level of pollution; unheated buildings where condensation may occur

C3 (medium)

Urban and industrial atmospheres, medium level of pollution (sulfur dioxide); coastal areas with low salinity; production
rooms with high humidity and some air pollution

C4 (high)

Industrial areas and coastal areas with moderate salinity; chemical plants; swimming pools etc.

C5 (very high)Industrial areas with high air humidity and aggressive atmosphere; coastal and offshore areas with high salinity;
buildings or areas with almost permanent condensation and with high pollution

CX (extreme)

Offshore areas with high salinity; industrial areas with extremely high air humidity and aggressive atmosphere;
subtropical and tropical climates

Im1

Fresh water: river installations, hydroelectric power plants

Im2

Salt or brackish water: immersed steel structures without cathodic protection(e.g. port zones with steel structures, such as locks or landing stages)

Im3

Soil: buried tanks, steel piles, steel pipes

Im4

Salt or brackish water: immersed steel structures with cathodic protection(e.g. offshore installations)5Surface Treatment
Expertise in Surface Treatment

3 Surface Treatment at SAMSONCorrosion can cause great economic loss. Damage to theenvironment cannot be ruled out either.
To counteract damage caused by corrosion, the surface
treatment at SAMSON is performed according to paint
suppliers' specifications under controlled process andambient conditions (constant temperature and air humidity
monitoring) in a heated building.
Ongoing testing during the coating application process
additionally ensure that the surface treatment remains at aconstant high quality.

3.1 Surface preparation
Optimal surface preparation is necessary to achieve
durable, long-lasting corrosion protection. The methods
used (see chart) are listed in the coating system
specifications.

Water, solvent and chemical cleaningacc. to Clause 6.2 of DIN EN ISO 12944-4

Rinsing in electroplating process

Alkaline degreasing

Degreasing in solvent

Acid pickling

Metal-coated surfacesacc. to Clause 5.3 of DIN EN ISO 12944-4

Zinc plating with iridescent passivation

Surfaces with chemical treatmentacc. to Clause 5.6 of DIN EN ISO 12944-4

Passivation of aluminum

Phosphate coating

Mechanical cleaningacc. to Clause 6.3 of DIN EN ISO 12944-4

Blast-cleaning

Coating system

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4 Coating systems
4.1 General description of the painting process
4.1.1 Powder coating
Powder coating involves applying the paint or protective coating as dry powder. The powder is electrostatically charged
and sprayed onto the component and then cured in an oven.
Advantages:
 Free from volatile organic compounds
 No solvent emissions
 Less toxic waste
 Minimized waste and highpowder yield (up to 98 %)thanks to recovery

 Excellent coating quality
 Excellent adhesion to the substrate High film thickness can be achieved
 High level of automation possible

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Expertise in Surface Treatment

4.1.2 Wet painting – Air gun spraying
Wet paint coatings are liquid mixtures of substances which form a firmly adhering coating after they have dried on thesurface of the component. Depending on the intended application, the paint contains dyes, pigments, fillers, softeners,
resins and binders. In addition to giving the component the desired appearance, the paint coating protects against damage
and corrosion.
Advantages:
 Well-suited for one-off or small series production
 Multilayer coatings with variable layer structures possible
 Easy change of paint and component
 Coating of heat-sensitive components possible
 Customizable color possible on request

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4.2 Coating systems for control valves
4.2.1 Corrosivity category up to C3, medium durability
Standard coating system according to DIN EN ISO 12944-2
Coating system

No. 1aTypical environment− Urban and industrial atmospheres with moderate sulfur dioxide pollution− Coastal areas with low salinity− Production rooms with high humidity and some air pollution

Materials

Steel, stainless steel and aluminum

Service temperature

Max. 120 °C

Surface preparation

Phosphate coated, zinc plating with iridescent passivation, stainless steel etched, aluminum passivated

System description
First layer

Coating material

Powder coating, epoxy polyester base (powder mixture)

Film thickness (NDFT)

100 µmMethod of application

Powder coating

Total film thickness (NDFT)

100 µmStandard color

RAL 1019 Gray-beige

Special color

In cases where a special paint color is specified, select a different coating system.

Standard coating system according to DIN EN ISO 12944-2
Coating system

No. 2aTypical environment− Urban and industrial atmospheres with moderate sulfur dioxide pollution− Coastal areas with low salinity− Production rooms with high humidity and some air pollution

Materials

Steel

Service temperature

Max. 120 °C

Surface preparation

Phosphate coated, dry ice blasting

System description
First layer

Secondlayer

Coating material

Two-component epoxy primer (zinc-rich)

Film thickness (NDFT)

60 µm

Method of application

Spray painting

Coating material

Two-component polyurethane top coat

Film thickness (NDFT)

60 µm

Method of application

Spray painting

Total film thickness (NDFT)

120 µmStandard color

RAL 1019 Gray-beige

Special color

Special paint colors (RAL, Munsell, BS etc.) on request
Pearl or shining effects are not possible with RAL paints.

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Expertise in Surface Treatment

Coating system with special requirements according to DIN EN ISO 12944-2
Coating system

No. 2b

Typical environment− Urban and industrial atmospheres with moderate sulfur dioxide pollution− Coastal areas with low salinity− Production rooms with high humidity and some air pollution

Materials

Steel, stainless steel and aluminum

Service temperature

Max. 120 °C

Surface preparation

Zinc plating with iridescent passivation, stainless steel etched, aluminum passivated, dry ice blasting

System description
First layer

Secondlayer

Coating material

Two-component epoxy primer (zinc-free)Film thickness (NDFT)

40 µm

Method of application

Spray painting

Coating material

Two-component polyurethane top coat

Film thickness (NDFT)

80 µm

Method of application

Spray painting

Total film thickness (NDFT)

120 µmStandard color

RAL 1019 Gray-beige

Special color

Special paint colors (RAL, Munsell, BS etc.) on request
Pearl or shining effects are not possible with RAL paints.

Standard coating system according to DIN EN ISO 12944-2
Coating system

No. 2cTypical environment− Urban and industrial atmospheres with moderate sulfur dioxide pollution− Coastal areas with low salinity− Production rooms with high humidity and some air pollution

Materials

Steel

Service temperature

Max. 120 °C

Surface preparation

Phosphatized

System description
First layer

10

Coating material

Two-component polyurethane top coat

Film thickness (NDFT)

120 µmMethod of application

Spray painting

Total film thickness (NDFT)

120 µmStandard color

RAL 1019 Gray-beige

Special color

In cases where a special paint color is specified, select a different coating system.

Surface Treatment
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4.2.2 Corrosivity category up to C4, low durability
Coating system with special requirements according to DIN EN ISO 12944-2
Coating system

No. 1b

Typical environment− Industrial atmospheres and coastal areas with moderate salinity− Indoors (e.g. chemical plants, swimming pools, coastal shipyards)

Materials

Steel, stainless steel and aluminum

Service temperature

Max. 120 °C

Surface preparation

Phosphate coated, zinc plating with iridescent passivation, stainless steel etched, aluminum passivated

System description
First layer

Secondlayer

Coating material

Powder coating, epoxy polyester base (powder mixture)

Film thickness (NDFT)

100 µmMethod of application

Powder coating

Coating material

Two-component polyurethane top coat

Film thickness (NDFT)

30 µm

Method of application

Spray painting

Total film thickness (NDFT)

130 µmStandard color

RAL 1019 Gray-beige

Special color

Special paints (RAL, Munsell, BS etc.) on request:
pearl or shining effects are not possible with RAL paints.

4.2.3 Corrosivity category up to C5, high durability
Coating system with special requirements according to DIN EN ISO 12944-2
Coating system

No. 03aTypical environment− Industrial areas with high air humidity and aggressive atmosphere; coastal and offshore areas with high salinity− Buildings or areas with almost permanent condensation and with high pollution

Materials

Steel, stainless steel and aluminum

Service temperature

Max. 120 °C

Surface preparation

Phosphate coated, zinc plating with iridescent passivation, stainless steel etched, aluminum passivated

System description
First layer

Second
layer
Third
layer

Coating material

Powder coating, epoxy polyester base (powder mixture)

Film thickness (NDFT)

100 µmMethod of application

Powder coating

Coating material

Two-component polyurethane top coat

Film thickness (NDFT)

140 µmMethod of application

Spray painting

Coating material

Two-component polyurethane top coat

Film thickness (NDFT)

40 µm

Method of application

Spray painting

Total film thickness (NDFT)

280 µmStandard color

RAL 1019 Gray-beige

Special color

Special paints (RAL, Munsell, BS etc.) on request:
pearl or shining effects are not possible with RAL paints.

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Expertise in Surface Treatment

Coating system with special requirements according to DIN EN ISO 12944-2
Coating system

No. 3b

Typical environment− Industrial areas with high air humidity and aggressive atmosphere; coastal and offshore areas with high salinity− Buildings or areas with almost permanent condensation and with high pollution

Materials

Steel

Service temperature

Up to 120 °C

Surface preparation

Phosphatized

System description
First layer

Second
layer
Third
layer

Coating material

Zinc-rich two-component primer

Film thickness (NDFT)

60 µm

Method of application

Spray painting

Coating material

Two-component epoxy coating containing micaceous iron oxide

Film thickness (NDFT)

160 µmMethod of application

Spray painting

Coating material

Two-component polyurethane top coat

Film thickness (NDFT)

60 µm

Method of application

Spray painting

Total film thickness (NDFT)

280 µmStandard color

RAL 1019 Gray-beige

Special color

Special paint colors (RAL, Munsell, BS etc.) on request
Pearl or shining effects are not possible with RAL paints.

Coating system with special requirements according to DIN EN ISO 12944-2
Coating system

No. 3cTypical environment− Industrial areas with high air humidity and aggressive atmosphere; coastal and offshore areas with high salinity− Buildings or areas with almost permanent condensation and with high pollution

Materials

Steel, stainless steel and aluminum

Service temperature

Up to 120 °C

Surface preparation

Zinc plating with iridescent passivation, stainless steel etched, aluminum passivated

System description
First layer

Second
layer
Third
layer

12

Coating material

Two-component epoxy primer (zinc-free)Film thickness (NDFT)

50 µm

Method of application

Spray painting

Coating material

Two-component epoxy coating containing micaceous iron oxide

Film thickness (NDFT)

150 µmMethod of application

Spray painting

Coating material

Two-component polyurethane top coat

Film thickness (NDFT)

80 µm

Method of application

Spray painting

Total film thickness (NDFT)

280 µmStandard color

RAL 1019 Gray-beige

Special color

Special paint colors (RAL, Munsell, BS etc.) on request
Pearl or shining effects are not possible with RAL paints.

Surface Treatment
Expertise in Surface Treatment

4.2.4 Corrosivity category up to C5, very high durability
Coating system with special requirements according to DIN EN ISO 12944-2
Coating system

No. 4

Typical environment− Industrial areas with high air humidity and aggressive atmosphere; coastal and offshore areas with high salinity− Buildings or areas with almost permanent condensation and with high pollution

Materials

Steel

Service temperature

Max. 120 °C

Surface preparation

Blast-cleaning, cleanliness grade Sa 2.5, medium (G)System description
First layer

Second
layer
Third
layer

Coating material

Zinc-rich two-component primer

Film thickness (NDFT)

60 µm

Method of application

Spray painting

Coating material

Two-component epoxy coating containing micaceous iron oxide

Film thickness (NDFT)

160 µmMethod of application

Spray painting

Coating material

Two-component polyurethane top coat

Film thickness (NDFT)

60 µm

Method of application

Spray painting

Total film thickness (NDFT)

280 µmStandard color

RAL 1019 Gray-beige

Special color

Special paint colors (RAL, Munsell, BS etc.) on request
Pearl or shining effects are not possible with RAL paints.

4.2.5 Paint coatings for insulated or non-insulated steel or stainless steel in highly corrosive ambientconditions and cryogenic applications (cryogenic ambient conditions)
Coating system with special requirements according to DIN EN ISO 12944-2
Coating system

No. 8

Typical environment

Ambient conditions (indoor and outdoor) with additional influence due to increased or high temperatures

Materials

Steel and stainless steel

Operating temperature–196 to +230 °C

Service temperature

Max. 230 °C

Surface preparation

Blast-cleaning, cleanliness grade Sa 2.5, medium (G)System description
First layer

Secondlayer

Coating material

Epoxy phenolicFilm thickness (NDFT)

125 µmMethod of application

Spray painting

Coating material

Epoxy phenolicFilm thickness (NDFT)

125 µmMethod of application

Spray painting

Total film thickness (NDFT)

250 µmStandard color

Gray, pink or olive graySpecial color–

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4.2.6 High-temperature-resistant systems
Coating system with special requirements according to DIN EN ISO 12944-2
Coating system

No. 5

Typical environment− Ambient conditions (indoor and outdoor) with additional influence due to high temperatures− "Dry heat"

Materials

Valve bodies made of steel

Operating temperature

120 to 540 °C

Service temperature

Max. 540 °C

Surface preparation

Phosphatized

System description
First layer

Second
layer
Third
layer

Coating material

Ethyl silicate zinc dust primer

Film thickness (NDFT)

75 µm

Method of application

Spray painting

Coating material

High-temperature silicone coating

Film thickness (NDFT)

25 µm

Method of application

Spray painting

Coating material

High-temperature silicone coating

Film thickness (NDFT)

25 µm

Method of application

Spray painting

Total film thickness (NDFT)

125 µmStandard color

Aluminum (approx. white aluminum)Special color–

Coating system with special requirements according to DIN EN ISO 12944-2
Coating system

No. 6

Typical environment− Ambient conditions (indoor and outdoor) with additional influence due to high temperatures− "Dry heat"

Materials

Valve bodies made of stainless steel

Operating temperature

120 to 540 °C

Service temperature

Max. 540 °C

Surface preparation

Stainless steel etched

System description
First layer

Secondlayer

14

Coating material

High-temperature silicone coating

Film thickness (NDFT)

25 µm

Method of application

Spray painting

Coating material

High-temperature silicone coating

Film thickness (NDFT)

25 µm

Method of application

Spray painting

Total film thickness (NDFT)

50 µm

Standard color

Aluminum (approx. white aluminum)Special color–

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4.3 Coating systems for valve accessories
4.3.1 Corrosivity category up to C2, up to high durability
Paint coatings for aluminum surfaces
Coating system

No. 10a

Typical environment− Urban and industrial atmospheres with moderate sulfur dioxide pollution− Coastal areas with low salinity− Production rooms with high humidity and some air pollution

Materials

Aluminum version of valve accessories (Types 373x, 376x, 379x, 476x, 3755)

Service temperature

Max. 120 °C

Surface preparation

Aluminum passivated

System description
First layer

Coating material

Powder coating, epoxy polyester base (powder mixture)

Film thickness (NDFT)

70 to 120 µm

Method of application

Powder coating

Total film thickness (NDFT)

70 to 120 µm

Standard color

RAL 1019 Gray-beige

Special color

In cases where a special paint color is specified, select a different coating system.

Coating of aluminum with special color specification
Coating system

No. 10b

Typical environment− Atmospheres with low or moderate pollution, high humidity− Coastal areas with low salinity

Materials

Aluminum version of valve accessories (Types 373x, 376x, 379x, 476x, 3755)

Service temperature

Max. 120 °C

Surface preparation

Aluminum passivated

System description
First layer

Secondlayer

Coating material

Two-component epoxy primer (zinc-free)Film thickness (NDFT)

40 µm

Method of application

Spray painting

Coating material

Two-component polyurethane top coat

Film thickness (NDFT)

60 µm

Method of application

Spray painting

Total film thickness (NDFT)

100 µmStandard color

RAL 1019 Gray-beige

Special color

Special paint colors (RAL, Munsell, BS etc.) on request
Pearl or shining effects are not possible with RAL paints.

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Paint coatings on stainless steel (coloring only)
Coating system

No. 11a

Typical environment− Atmospheres with low or moderate pollution, high humidity− Coastal areas with low salinity

Materials

Stainless steel version of valve accessories (Types 373x, 376x, 379x, 476x, 3755)

Service temperature

Max. 120 °C

Surface preparation

Stainless steel etched

System description
First layer

Coating material

Powder coating, epoxy polyester base (powder mixture)

Film thickness (NDFT)

70 to 120 µm

Method of application

Powder coating

Total film thickness (NDFT)

70 to 120 µm

Standard color

RAL 1019 Gray-beige

Special color

In cases where a special paint color is specified, select a different coating system.

Paint coatings of stainless steel with special color specifications
Coating system

No. 11b

Typical environment− Atmospheres with low or moderate pollution, high humidity− Coastal areas with low salinity

Materials

Stainless steel version of valve accessories (Types 373x, 376x, 379x)

Service temperature

Max. 120 °C

Surface preparation

Stainless steel etched

System description
First layer

Secondlayer

16

Coating material

Two-component epoxy primer (zinc-free)Film thickness (NDFT)

40 µm

Method of application

Spray painting

Coating material

Two-component polyurethane top coat

Film thickness (NDFT)

60 µm

Method of application

Spray painting

Total film thickness (NDFT)

100 µmStandard color

RAL 1019 Gray-beige

Special color

Special paint colors (RAL, Munsell, BS etc.) on request
Pearl or shining effects are not possible with RAL paints.

Surface Treatment
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4.4 Customized solutions
Contact SAMSON if you require a protective coating system not included in this brochure or simply want a different color.

Color
RAL 1019 is the standard color for SAMSON products. Other colors are possible on request to meet various international
standards. The exact color code must be specified for customized solutions.

Customized protective coating systems
The following customized solutions are available:
 Coating systems according to NORSOK M-501 on request
 Customized coatings for high and low-temperature applications
 Coatings according to customer specifications (only after prior agreement) Adaptation of the coating thickness according to customer specifications on request (with manufacturer specifications)17Surface Treatment
Expertise in Surface Treatment

5 Test methods
Ongoing tests of coating systems are performed to ensure a constant high quality. Specific tests to verify the quality canbe performed on customer request. The test results are documented in inspection certificates. Customers can also appoint
an authorized inspector to verify test results. The conventional test methods listed below are performed during theapplication of paint coatings.

Dust test
Dust particles or other residue present on surfaces after blast-cleaning can reduce the adhesion of the coating to thesubstrate. The dust test is performed to assess the quantity and size of dust particles on surfaces prepared for painting.
 DIN EN ISO 8502-3

Salt test
Soluble salts and ion-specific contamination that are not visible to the naked eye can impair the adhesion of the coating
to the substrate. During the salt test, a conductivity meter is used to determine the concentration of salts and ion-specificcontamination present on the surface and assess the cleanliness of surfaces prepared for painting.
 DIN EN ISO 8502-6
 DIN EN ISO 8502-9

Film thickness measurement
After a coating has dried, its film thickness is measured according to the magnetic induction method. The film thickness ofeach layer (i.e. the primer, intermediate coat and top coat) is measured at defined measuring points.
 DIN EN ISO 19840
 DIN EN ISO 12944-5

Holiday test
The presence of discontinuities or 'holidays' in coating films can prevent the coating from fulfilling its function. A highvoltage holiday detector fitted with a brush probe can be used to detect discontinuities on coatings.
 DIN EN ISO 55670

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Cross-cut test
The coating must remain adhered to the substrate in order for the coating to fulfill its function. The cross-cut test is performed
to subjectively assess the adhesion of coatings with a film thickness (NDFT) lower than 250 µm. This test is a destructive
test method. Therefore, it is performed on a test plate.
 DIN EN ISO 2409

X-cut tape test
The coating must remain adhered to the substrate in order for the coating to fulfill its function. The X-cut tape test is
performed to subjectively assess the adhesion of coatings with a film thickness (NDFT) greater than 250 µm. This test is a
destructive test method. Therefore, it is performed on a test plate.
 ASTM D3359

Pull-off test
The coating must remain adhered to the substrate in order for the coating to fulfill its function. In contrast to the cross-cut
and X-cut tape tests, the pull-off test provides quantitative results. The force required to pull off the dolly is measured in
megapascals (MPa) by an instrument. This test is a destructive test method. Therefore, it is performed on a test plate.
 DIN EN ISO 4624

MEK test
The solvent rub test is performed to determine the degree of cure of a baked film by the paint film resistance to a specified
solvent. Methyl ethyl ketone (MEK) is used as the solvent in the solvent rub test. The MEK resistance or degree of cureapplies to paint top coats and primers.
 ASTM D4752

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6 Environmental protection
Environmentally safe powder coating
 Free from volatile organic compounds (e.g. solvents)
 Up to 98 % efficiency is achieved by recovering overspray

Wastewater cleaning Precipitation of heavy metals and other suspended matter pH neutralization
 Professional waste disposal

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7 Relevant standards
Standard

Designation

DIN EN ISO 12944-1:2019-01

Paints and varnishes – Corrosion protection of steel structures by protective paint systems
Part 1: General introduction

DIN EN ISO 12944-2:2018-04

Paints and varnishes – Corrosion protection of steel structures by protective paint systems
Part 2: Classification of environments

DIN EN ISO 12944-3:2018-04

Paints and varnishes – Corrosion protection of steel structures by protective paint systems
Part 3: Design considerations

DIN EN ISO 12944-4:2018-04

Paints and varnishes – Corrosion protection of steel structures by protective paint systems
Part 4: Types of surface and surface preparation

DIN EN ISO 12944-5:2020-03

Paints and varnishes – Corrosion protection of steel structures by protective paint systems
Part 5: Protective paint systems

DIN EN ISO 12944-6:2018-06

Paints and varnishes – Corrosion protection of steel structures by protective paint systems
Part 6: Laboratory performance test methods

DIN EN ISO 12944-7:2018-04

Paints and varnishes – Corrosion protection of steel structures by protective paint systems
Part 7: Execution and supervision of paint work

DIN EN ISO 12944-8:2018-04

Paints and varnishes – Corrosion protection of steel structures by protective paint systems
Part 8: Development of specifications for new work and maintenance

DIN EN ISO 12944-9:2018-06

Paints and varnishes – Corrosion protection of steel structures by protective paint systems
Part 9: Protective paint systems and laboratory performance test methods for offshore and related structures

DIN EN ISO 2409:2020-12

Paints - Cross-cut test

DIN EN ISO 2808:2019-12

Paints and varnishes – Determination of film thickness

DIN EN ISO 4624:2016-08

Paints and varnishes – Pull-off test for adhesion

DIN EN ISO 8501-1:2007

Preparation of steel substrates before application of paints and related products – Visual assessment of surface
cleanliness – Part 1: Rust grades and preparation grades of uncoated steel substrates and of steel substrates after
overall removal of previous coatings

DIN EN ISO 8501-2:2002-03

Preparation of steel substrates before application of paints and related products – Visual assessment of surface
cleanliness – Part 2: Preparation grades of previously coated steel substrates after localized removal of previous
coating

DIN EN ISO 8501-3:2007

Preparation of steel substrates before application of paints and related products – Visual assessment of surface
cleanliness – Part 3: Preparation grades of welds, edges and other areas with surface imperfections

DIN EN ISO 8502-3:2017-05

Preparation of steel substrates before application of paints and related products – Tests for the assessment of surface
cleanliness – Part 3: Assessment of dust on steel surfaces prepared for painting (pressure-sensitive tape method)

DIN EN ISO 8502-6:2020-08

Preparation of steel substrates before application of paints and related products – Tests for the assessment of surface
cleanliness – Part 6: Extraction of water soluble contaminants for analysis (Bresle method)

DIN EN ISO 8502-9:2020-12

Preparation of steel substrates before application of paints and related products – Tests for the assessment of surface
cleanliness – Part 9: Field method for the conductometric determination of water-soluble salts

DIN EN ISO 8503-1:2013-05

Preparation of steel substrates before application of paints and related products – Surface roughness characteristicsof blast-cleaned steel substrates – Part 1: Specifications and definitions for ISO surface profile comparators for theassessment of abrasive blast-cleaned surfaces

DIN EN ISO 8503-2:2012-06

Preparation of steel substrates before application of paints and related products – Surface roughness characteristicsof blast-cleaned steel substrates – Part 2: Method for the grading of surface profile of abrasive blast-cleaned steel –Comparator procedure

DIN EN ISO 8504-2:2020-03

Preparation of steel substrates before application of paints and related products – Surface preparation methods –Part 2: Abrasive blast-cleaning

DIN EN ISO 9223:2012-05

Corrosion of metals and alloys – Corrosivity of atmospheres – Classification, determination and estimation

DIN EN ISO 9717:2018-02

Metallic and other inorganic coatings – Phosphate conversion coating of metals

21Surface Treatment
Expertise in Surface Treatment

22

DIN 50961:2012-04

Electroplated coatings – Zinc coatings on iron or steel – Terms, testing and corrosion resistance

DIN 55633-1:2021-03

Paints and varnishes – Corrosion protection of steel structures by powder coating systems – Assessment of powder
coating systems and execution of coating

DIN 55670:2011-02

Paints and varnishes – Method for testing paint coatings for pores and cracks using high voltage

ASTM D3359-22

Standard Test Methods for Rating Adhesion by Tape Test

ASTM D4752-20

Standard Practice for Measuring MEK Resistance of Ethyl Silicate (Inorganic) Zinc-Rich Primers by Solvent Rub

ISO 19840:2012

Paints and varnishes – Corrosion protection of steel structures by protective paint systems – Measurement and acceptance criteria for the thickness of dry films on rough surfaces

NACE SP0188-2006

Discontinuity (Holiday) Testing of New Protective Coatings on Conductive Substrates

SAMSON AT A GLANCE

STAFF

PRODUCTION SITES– Worldwide 4,500– Europe 3,600– Asia 600– Americas 200– Frankfurt am Main, Germany 1,900– SAMSON Germany, Frankfurt, established in 1916
Total plot and production area: 150,000 m²

INDUSTRIES AND APPLICATIONS– Chemicals and petrochemicals– Food and beverages– Pharmaceuticals and biotechnology– Oil and gas– Liquefied Natural Gas (LNG)– Marine equipment– Power and energy– Industrial gases– Cryogenic applications– District energy and building automation– Metallurgy and mining– Pulp and paper– Water technology– Other industries

PRODUCTS– Valves– Self-operated regulators– Actuators– Positioners and valve accessories– Signal converters– Controllers and automation systems– Sensors and thermostats– Digital solutions

SALES SITES– More than 50 subsidiaries
in over 40 countries– More than 200 representatives– SAMSON France, Lyon, established in 1962
Total plot and production area: 23,400 m²– SAMSON Turkey, Istanbul, established in 1984
Total plot and production area: 11,100 m²– SAMSON USA, Baytown, TX, established in 1992
Total plot and production area: 20,000 m²– SAMSON China, Beijing, established in 1998
Total plot and production area: 47,000 m²– SAMSON India, Pune district, established in 1999
Total plot and production area: 28,000 m²– SAMSON AIR TORQUE, Bergamo, Italy
Total plot and production area: 27,000 m²– SAMSON CERA SYSTEM, Hermsdorf, Germany
Total plot and production area: 14,700 m²– SAMSON KT-ELEKTRONIK, Berlin, Germany
Total plot and production area: 1,100 m²– SAMSON LEUSCH, Neuss, Germany
Total plot and production area: 18,400 m²– SAMSON PFEIFFER, Kempen, Germany
Total plot and production area: 20,300 m²– SAMSON RINGO, Zaragoza, Spain
Total plot and production area: 19,000 m²– SAMSON SED, Bad Rappenau, Germany
Total plot and production area: 10,400 m²– SAMSON STARLINE, Bergamo, Italy
Total plot and production area: 27,000 m²– SAMSON VDH PRODUCTS, the Netherlands
Total plot and production area: 12,000 m²– SAMSON VETEC, Speyer, Germany
Total plot and production area: 27,100 m²

Weismuellerstrasse 3 · 60314 Frankfurt am Main, Germany
Phone: +49 69 4009-0 · Fax: +49 69 4009-1507
E-mail: samson@samsongroup.com
Internet: www.samsongroup.com

2023-01 · WA 268 EN

SAMSON AKTIENGESELLSCHAFT