Understanding guarantee levels

and categories of corrosivity

The anti-corrosion guarantee only covers rust-related faults. It is based on the European standard ISO 12944,

which def ines precise corrosivity categories.

Tolerances for the anti-corrosion guarantee

are def ined based on standard ISO 4628-3

for the degree of rusting and standard ISO

4628-2 for the degree of blistering.

DIRICKX strives to work on the reliability and durability of its products, however natural phenomena or those

relating to the surrounding environment can inf luence the aspect of products, such as their colouring.

Category Examples of standard environments

Distance between the

products and the sea

C1 very low Dry or cold desert area with very low levels of atmospheric pollution> 20 km from the sea

C2 low

Rural areas (or small town with low levels of pollution)

and short-term persistent moisture

> 20 km from the sea

C3 medium

Industrial area with moderate and non-aggressive pollution

(SO

2

: 5µg/m

3

to 30 µg/m

3

) - Urban area

> 20 km from the sea

C4 high Polluted industrial or urban area (SO

2

: 30µg/m

3

to 90 µg/m

3

)

Between 3 and 20 km - coastal area with

moderate salinity without seawater projection

(e.g. coastal municipality)

C5 very high

Industrial area with aggressive atmosphere (SO

2

: 90µg/m

3

to 250 µg/m

3

) and

high air humidity AND/OR significant chloride effects

Between 500 m and 3 km from the sea

C5 extreme

Industrial area with extreme humidity and aggressive atmosphere< 500 m from the sea

OR tropical and subtropical climate zones

Not in situations involving direct contact with

seawater or installation right above seawater

Period Degree of rusting Degree of blistering

Year 1 to 5< RI2< Degree 3

Year 6 to 10< RI3< Degree 3

The winning combination to ensure that your products last longer

Maintenance is mandatory and must be carried out every six months

DIRICKX offers commissioning and installation services and maintenance

and servicing contracts

Please contact DIRICKX SERVICES

All surfaces require semiannual maintenance

Coated surfaces exposed to the retention of dust mud sand or

salt require thorough cleaning

Must consist of washing with water and a mild detergent

PH between 5 and 8 followed by thorough rinsing with clean

water and wiping dry It is prohibited to use abrasive agents

GUARANTEES AND REGULAR MAINTENANCE

FREQUENCY

CLEANING

SPECIFIC MAINTENANCE OPERATIONS FOR MOTORISED GATES

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