ISO 11347:2024
(Main)Ships and marine technology — Large yachts — Measurement and assessment of the visual appearance of coatings
Ships and marine technology — Large yachts — Measurement and assessment of the visual appearance of coatings
This document specifies technical requirements for the measurement and assessment of the visual appearance of the superficial coating of large yachts. It is valid for coatings above the waterline. For the purpose of this document, large yachts are of length of hull (LH) higher or equal to 24 m (as defined according to ISO 8666), in use for sport or leisure and commercial operations. This document describes how the final finish can be evaluated before its acceptance.
Navires et technologie maritime — Grands yachts — Mesurage et évaluation de l'apparence visuelle des revêtements
La présente Norme internationale spécifie les exigences techniques de mesurage et d'évaluation de l'apparence visuelle des revêtements de surface des grands yachts, en termes de brillance, de couleur et de tous autres défauts de surface. Elle est applicable aux grands yachts, dont la longueur, LH, telle que définie dans l'ISO 8666, est supérieure ou égale à 24 m, destinés au sport, au loisir et aux opérations commerciales. Elle décrit les propriétés techniques servant de cadre à l'évaluation de l'état de finition final avant son acceptation.
General Information
Relations
Standards Content (Sample)
International
Standard
ISO 11347
Second edition
Ships and marine technology —
2024-10
Large yachts — Measurement
and assessment of the visual
appearance of coatings
Navires et technologie maritime — Grands yachts — Mesurage et
évaluation de l'apparence visuelle des revêtements
Reference number
© ISO 2024
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ii
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Evaluations. 2
4.1 General .2
4.2 Measurable effects .3
4.3 Visually assessed effects .3
4.3.1 Group 1: point defects .3
4.3.2 Group 2: localized defects .3
4.3.3 Group 3: generalized defects .3
5 Measurable effects and visually assessed effects (including test and recording methods) . 4
5.1 Measurable effects .4
5.1.1 Fairness .4
5.1.2 Distinction of image .4
5.1.3 Orange peel .4
5.1.4 Microstructure .5
5.1.5 Colour .5
5.1.6 Gloss .5
5.1.7 Particulate contamination .6
5.2 Visually assessed effects .6
5.2.1 General .6
5.2.2 Group 1: point defects .6
5.2.3 Group 2: localized defects .8
5.2.4 Group 3: generalized defects .10
Annex A (normative) Test method for measuring the fairness of coatings .12
Annex B (normative) Test method for measuring the distinction of image of coatings .13
Annex C (normative) Test method for measuring orange peel of coatings .15
Annex D (normative) Test method for measuring microstructure of coatings . 17
Annex E (normative) Test method for colour measurement of coatings . 19
Annex F (normative) Test method for gloss measurement of coatings .21
Annex G (normative) Test method for measuring particulate contamination of coatings .23
Annex H (normative) Recording method for group 1: point defects in coatings.24
Annex I (normative) Recording method for group 2: localized defects in coatings .25
Annex J (normative) Recording method for group 3: generalized defects in coatings .27
Bibliography .28
iii
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out through
ISO technical committees. Each member body interested in a subject for which a technical committee
has been established has the right to be represented on that committee. International organizations,
governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely
with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are described
in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the different types
of ISO document should be noted. This document was drafted in accordance with the editorial rules of the
ISO/IEC Directives, Part 2 (see www.iso.org/directives).
ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent
rights in respect thereof. As of the date of publication of this document, ISO had not received notice of (a)
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related to conformity assessment, as well as information about ISO's adherence to the World Trade
Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 8 Ships and marine technology, Subcommittee
SC 12, Large yachts.
This second edition cancels and replaces the first edition (ISO 11347:2012) which has been technically
revised.
The main changes are as follows:
— updated normative references and bibliography;
— updated the terms and definitions in Clause 3;
— updated the test and recording methods.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.
iv
Introduction
This document defines the measurement and assessment processes used for above waterline exterior
surface appearance and quality requirements for large yachts. The purpose of this document is to provide
practical measurement processes for the assessment of agreed acceptance criteria for the visual appearance
of yacht coatings.
Measurement processes are based on known generic inspection equipment that is available at the time of
producing this document. It is not the purpose of this document to provide an exhaustive list of inspection
equipment which is available at the time of publication.
v
International Standard ISO 11347:2024(en)
Ships and marine technology — Large yachts — Measurement
and assessment of the visual appearance of coatings
1 Scope
This document specifies technical requirements for the measurement and assessment of the visual
appearance of the superficial coating of large yachts. It is valid for coatings above the waterline.
For the purpose of this document, large yachts are of length of hull (L ) higher or equal to 24 m (as defined
H
according to ISO 8666), in use for sport or leisure and commercial operations.
This document describes how the final finish can be evaluated before its acceptance.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes
requirements of this document. For dated references, only the edition cited applies. For undated references,
the latest edition of the referenced document (including any amendments) applies.
ISO 2813, Paints and varnishes — Determination of gloss value at 20°, 60° and 85°
ISO 4618, Paints and varnishes — Vocabulary
ISO 4628-2, Paints and varnishes — Evaluation of degradation of coatings — Designation of quantity and size of
defects, and of intensity of uniform changes in appearance — Part 2: Assessment of degree of blistering
ISO 4628-4, Paints and varnishes — Evaluation of degradation of coatings — Designation of quantity and size of
defects, and of intensity of uniform changes in appearance — Part 4: Assessment of degree of cracking
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 4618 and the following apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
3.1
clouding
appearance of lighter and darker patches in a top coat (3.12) film, most commonly observed in special effect
(metallic flake) coatings
3.2
curing
term in polymer chemistry that refers to the toughening or hardening of a polymer material by cross linking
of polymer chains
3.3
cut line
visible, raised, hard edge of a coating created when the applied coating borders masking/fine line tape
3.4
fairness
particular range of wavelengths of defects from 300 mm to 1 000 mm
3.5
fingerprint
damage of wet film due to accidental contact by either operators or objects, or both
3.6
hull
main body of a yacht which provides flotation
3.7
polishing mark
mark from top coat (3.12) polishing, resulting in low gloss areas
3.8
print through
visual effect of inconsistencies or faults in the underlying coating/substrate structure
3.9
sanding mark
raised or indented lines (curved or straight) visible in the top coat (3.12) as a result of the sanding process
under the top coat
3.10
striping
appearance of lighter and darker repetitive shades in a top coat (3.12) film, most commonly observed in
special effect (metallic flake) coatings
3.11
surface texture
local deviation of a surf
...
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