ISO was prepared by Technical Committee ISO/TC 35, Paints and .. The test panels shall be dry and free of dust and any other foreign. ISO (E) ISO. Second edition. Paints and varnishes — Performance This is a free 6 page sample. Access the full version . Reference number. ISO (E) ISO. First edition. Paints and varnishes — Performance This is a free 6 page sample. Access.
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In order to establish sufficient corrosion protection and ensure optimum performance of the coating, it is necessary to specify the requirements for the protection paint system s along with the relevant laboratory performance tests to assess its their likely durability. In order to achieve the same performance as indicated by testing, proper application of the paint is essential. Close attention needs to be given to the execution of the work.
In ISOrelevant requirements are given for the following: Such structures are exposed to environments of corrosivity category C5-M and immersion category Im2 as defined in ISO It can also be used for other structures, provided that the selected paints or protective paint systems comply with this International Standard. Only new work and any repairs necessary before start-up are included. This International Standard places emphasis on high-durability paint systems, with the aim of minimizing maintenance, and hence reducing safety considerations and environmental impact.
The fields of application are specified in Clause 4.
For reference purposes, some typical examples of protective paint systems which have been used successfully offshore are included in Table 3. For dated references, only the ios cited applies. For undated references, the latest edition of the referenced document including any amendments applies.
Water immersion method ISO Rust grades and preparation grades of uncoated izo substrates and of steel substrates after overall removal of previous coatings ISO Specifications and definitions for ISO surface profile comparators for the assessment of abrasive blast-cleaned surfaces ISO Isk for the grading of surface profile of abrasive blast-cleaned steel — Comparator procedure ISO Content and order of sections ISO NOTE 2 See 5.
NOTE 2 Dree products have to be protected from freezing at all times during transportation and or storage. Not covered by this International Standard are the following: The structure may be divided into four zones based on the type of environment each zone is exposed to: Should third-party certification be requested, an independent laboratory shall be kso on between the interested parties. For each paint in the paint system, the manufacturer shall provide a product data sheet, PDS see 5.
Under normal circumstances, neither the chemical composition of the individual paints fres the paint system see 5. If changed, the paint system is subject to re-qualification as agreed between the interested parties. At least the following information shall be shown on the label: After qualification of a paint system, this fingerprint may be used, if necessary, to ensure that the paint supplied for use matches that subjected to qualification testing.
An example of fingerprint testing is given in Annex B. The paint manufacturer shall carry out routine batch testing on each batch of paint. Such tests are subject to documentation forming part of the paint manufacturer’s quality assurance system and are used to provide the certificate of conformity, if required by the purchaser. The minimum data required oso a simple identification check if relevant to the product in question are given in Table 1. Each of the parties involved shall be entitled to carry out additional checks on any batch to verify the fingerprint.
ISO environmental testing servicesAccelerated Weathering Laboratory
Such information, and the detailed results of the assessment process, shall be the property of the purchaser but shall not be disseminated frew the purchaser without prior agreement from the paint manufacturer.
The following information is required for each product: An example of a paint system template is given in Table 2. Table 2 — Example of a paint system description Manufacturer Type of substrate Type of environment Name: Whilst there is no guarantee that a frew system matching one of these examples would provide adequate protection, systems of these types have provided high-durability performance.
It should be emphasized that the paint systems given in Table 3 are made up of different generic types of intermediate-coat paint and topcoat paint. They should therefore only be considered as typical examples.
Table 3 is not intended to be comprehensive, nor is the intention that it be used as specification guidelines. Table 3 —Typical examples of some protective paint systems and their initial performance Substrate Blast-cleaned carbon steel: Pull-off test value before ageing determined in accordance with ISO isi, in MPa 3 3 4 3 3 4 6 8 2 2 a The thickness vree the metallic coating is in accordance with ISO hot-dip galvanized or ISO metallized steel and the coating is prepared as given in ISO The product shall be applied iwo its shelf life.
For twin-pack materials, the pot life shall not be exceeded.
The type of test panel and their number, preparation and conditioning shall be in accordance with ISO and with the coating material?????
Other methods of surface preparation may be used to represent actual field conditions, as agreed between the interested parties. The test panels shall be dry and free of dust and any other foreign matter immediately prior iwo paint application.
Protect the backs and edges of the test panels with an appropriate means of protection agreed on between the interested parties. The maximum thickness of each coat on each panel shall be: Deviations from the over-coating time specified by the paint manufacturer shall be agreed between the interested parties and recorded in the test report.
If curing and conditioning are conducted under different conditions, they shall be clearly stated in the test report. The coating system shall be fully cured in accordance with the manufacturer’s most recent instructions before testing starts. Unless otherwise agreed, condition the coated test panels for three weeks in accordance with ISO If any pinholes are detected, the panels shall be replaced.
Both shall cut completely through the paint coating and into the metal substrate. Both shall be 50 mm long and 20 mm from any edge. Make scribe lines of two different types as indicated below: The cross-section of the scribe line shall be as shown in Figure 3. Dimensions in millimetres Key 1 2-mm-wide scribe line 2 0,mm-wide scribe line Figure 1 — Test panel showing position of each type of scribe line?????
Optional tests may also be carried out, such as impact resistance, abrasion resistance and crack resistance. The actual test or tests to be carried out shall be agreed between the interested parties.
If the alternative cycle iwo used, this shall be indicated in the test report see Clause 9. Methods and requirements are given in Table 5. Table 5 — Assessment of test panels — Methods and requirements ISO Lso method Requirement before qualification testing Requirement after qualification testing ISO pull-off test To be agreed between the interested parties.
Examples are given in Dree 3. An example of a test report form is given in Annex C.
In the absence of such an agreement, the standard procedure procedure A shall be used. Standard procedure with low-temperature exposure thermal shock The exposure cycle used in this procedure lasts a full week h and includes: Alternative procedure lso low-temperature exposure If specified, an alternative exposure cycle may be used.
2340 alternative cycle is the same as the standard cycle procedure A but without low-temperature exposure. The use of the alternative exposure cycle shall be indicated in the test report.
The binder properties infrared spectra and content of functional groups are determined after separation of the resin from the pigment and the solvent. Many other additional tests could be useful in characterizing more precisely the components of a paint.
End of panel preparation: Description of paint system Manufacturer Type of environment Type of substrate Name: Surface preparation Length, width and thickness: Application of paint system Trade name Batch number Temp.
Coating thickness measurements min. Date of report and signatures: Assessment after water immersion 4 h Panel No. Assessment after exposure testing h Panel No. Ashing method Determination of binder and extender content by mass  ISOPaints, varnishes and plastics — Determination of non-volatile-matter content Determination of content of functional groups  Isocyanate content: ISOIron oxide pigments for paints  Micaceous iron oxide: ISOMicaceous iron oxide pigments for paints — Specifications and test methods  Zinc dust: