ASTM F941-99(2019)
(Practice)Standard Practice for Inspection of Marine Surface Preparation and Coating Application
Standard Practice for Inspection of Marine Surface Preparation and Coating Application
SIGNIFICANCE AND USE
3.1 This practice may be invoked by any of the parties mentioned in 1.2 and may be included as part of a specification or used to clarify or reinforce an existing specification that does not adequately address inspection. When invoked by the ship owner on the shipbuilder, the shipbuilder is responsible for the coordination effort.
3.2 As surface preparation and coating requirements generally differ from ship area to ship area, this practice shall be applied separately to those areas of similar requirements.
3.3 The contents of this practice shall be addressed (for each applicable ship area) at a prestartup meeting attended by the parties mentioned in 1.2.
SCOPE
1.1 This practice is intended to serve as a guide for determining specific inspection requirements for marine surface preparation and coating application during new construction, major retrofit, or routine maintenance contracts.
1.2 It is intended that this practice be used to coordinate inspection activities between ship owner, ship builder, coatings manufacturer and coatings applicator, and that specific requirements be developed before the commencement of surface preparation or coating application, or both.
1.3 This practice does not provide a means of recording required data (for example, film thicknesses, temperatures, relative humidity, and so forth), but instead establishes a format for deciding what data must be recorded, when during the preparation/coating process, and by whom.
1.4 This practice does not establish accept/reject criteria for surface preparation or coating inspection, nor does it address methods of repairing deficiencies found. It does, however, provide a means of determining them.
1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
General Information
- Status
- Published
- Publication Date
- 30-Nov-2019
- Technical Committee
- F25 - Ships and Marine Technology
- Drafting Committee
- F25.01 - Structures
Relations
- Effective Date
- 01-Dec-2019
- Effective Date
- 01-Feb-2020
- Effective Date
- 01-Jul-2015
- Effective Date
- 01-Jun-2010
- Effective Date
- 01-Mar-2007
- Refers
ASTM F718-07 - Standard for Shipbuilders and Marine Paints and Coatings Product/Procedure Data Sheet - Effective Date
- 01-Mar-2007
- Effective Date
- 01-Feb-2007
- Effective Date
- 01-Dec-2005
- Effective Date
- 01-May-2005
- Effective Date
- 10-Jan-2003
- Effective Date
- 10-Jun-2000
Overview
ASTM F941-99(2019), Standard Practice for Inspection of Marine Surface Preparation and Coating Application, is an internationally recognized guideline developed by ASTM for managing the inspection requirements associated with surface preparation and coating application in shipbuilding and marine maintenance projects. This standard facilitates the coordination of inspection activities among ship owners, shipbuilders, coatings manufacturers, and applicators, ensuring clarity, consistency, and quality throughout the marine coating process.
The practice is applicable to new construction, major retrofits, and routine maintenance in the marine industry. While it does not prescribe specific data recording methods or set acceptance criteria, ASTM F941-99(2019) establishes a clear framework for identifying what information should be recorded, when, and by whom. Its primary focus is to provide structure for all stakeholders involved while promoting best practices in marine coatings inspection.
Key Topics
ASTM F941-99(2019) provides guidance on:
- Determining Inspection Requirements: Outlines a process for specifying what must be inspected during marine surface preparation and coating application.
- Stakeholder Coordination: Establishes protocols for communication and cooperation among ship owners, builders, coatings manufacturers, and applicators.
- Inspection Planning: Facilitates the development of specific inspection plans before project commencement, tailored to each ship area (e.g., hulls, tanks).
- Documentation Format: Recommends a sample form and format for recording and agreeing upon inspection records and processes, but does not dictate specifics such as film thickness or humidity data collection methods.
- Scope Limitation: Clearly states that the standard does not provide accept/reject criteria or methods for repair of deficiencies-those aspects are to be determined in project-specific specifications.
Applications
ASTM F941-99(2019) is widely used in the maritime sector for:
- Shipbuilding and Major Refits: Ensuring surface preparation and coating activities meet inspection and project requirements for long-term protection and performance.
- Routine Marine Maintenance: Assuring ongoing compliance with best practices during repainting or repair projects.
- Project Specification Development: Providing a framework to expand or clarify inspection criteria in new contracts or reinforce existing ones.
- Pre-Project Coordination: Structuring pre-startup meetings, ensuring all parties understand their responsibilities and agree on inspection protocols.
- Quality Assurance: Supporting the systematic approach needed for high-quality marine surface preparation, including record keeping, accountability, and dispute resolution.
- International Projects: Facilitating consistent practices across global projects, as the standard adheres to internationally recognized standardization principles.
Related Standards
ASTM F941-99(2019) references and works alongside several key international standards, including:
ASTM Standards
- ASTM D3276: Guide for Painting Inspectors (Metal Substrates)
- ASTM D4940: Test Method for Conductimetric Analysis of Water Soluble Ionic Contamination of Blast Cleaning Abrasives
- ASTM F718: Specification for Shipbuilders and Marine Paints and Coatings Product/Procedure Data Sheet
SSPC (Society for Protective Coatings) Standards
- SSPC PA 2: Measurement of Film Thickness
- SSPC-SP 1: Solvent Cleaning
- SSPC-SP 3: Power Tool Cleaning
- SSPC-SP 5: White Metal Blast Cleaning
- SSPC-SP 6: Commercial Blast Cleaning
- SSPC-SP 7: Brush-Off Blast Cleaning
- SSPC-SP 10: Near-White Blast Cleaning
- SSPC VIS-1: Pictorial Surface Preparation Standards for Painting Steel Surfaces
ISO Standards
- ISO 8501, ISO 8502, ISO 8503, ISO 8504: Preparation of Substrates Before Application of Paints and Related Products (various parts covering surface cleanliness, assessment, and surface roughness)
These related standards support comprehensive marine coating inspection practices and provide detailed technical specifications referenced by ASTM F941-99(2019).
Keywords: marine surface preparation, coating inspection, ASTM F941-99, shipbuilding, marine coatings, inspection requirements, surface preparation standards, quality assurance, coatings application.
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Frequently Asked Questions
ASTM F941-99(2019) is a standard published by ASTM International. Its full title is "Standard Practice for Inspection of Marine Surface Preparation and Coating Application". This standard covers: SIGNIFICANCE AND USE 3.1 This practice may be invoked by any of the parties mentioned in 1.2 and may be included as part of a specification or used to clarify or reinforce an existing specification that does not adequately address inspection. When invoked by the ship owner on the shipbuilder, the shipbuilder is responsible for the coordination effort. 3.2 As surface preparation and coating requirements generally differ from ship area to ship area, this practice shall be applied separately to those areas of similar requirements. 3.3 The contents of this practice shall be addressed (for each applicable ship area) at a prestartup meeting attended by the parties mentioned in 1.2. SCOPE 1.1 This practice is intended to serve as a guide for determining specific inspection requirements for marine surface preparation and coating application during new construction, major retrofit, or routine maintenance contracts. 1.2 It is intended that this practice be used to coordinate inspection activities between ship owner, ship builder, coatings manufacturer and coatings applicator, and that specific requirements be developed before the commencement of surface preparation or coating application, or both. 1.3 This practice does not provide a means of recording required data (for example, film thicknesses, temperatures, relative humidity, and so forth), but instead establishes a format for deciding what data must be recorded, when during the preparation/coating process, and by whom. 1.4 This practice does not establish accept/reject criteria for surface preparation or coating inspection, nor does it address methods of repairing deficiencies found. It does, however, provide a means of determining them. 1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
SIGNIFICANCE AND USE 3.1 This practice may be invoked by any of the parties mentioned in 1.2 and may be included as part of a specification or used to clarify or reinforce an existing specification that does not adequately address inspection. When invoked by the ship owner on the shipbuilder, the shipbuilder is responsible for the coordination effort. 3.2 As surface preparation and coating requirements generally differ from ship area to ship area, this practice shall be applied separately to those areas of similar requirements. 3.3 The contents of this practice shall be addressed (for each applicable ship area) at a prestartup meeting attended by the parties mentioned in 1.2. SCOPE 1.1 This practice is intended to serve as a guide for determining specific inspection requirements for marine surface preparation and coating application during new construction, major retrofit, or routine maintenance contracts. 1.2 It is intended that this practice be used to coordinate inspection activities between ship owner, ship builder, coatings manufacturer and coatings applicator, and that specific requirements be developed before the commencement of surface preparation or coating application, or both. 1.3 This practice does not provide a means of recording required data (for example, film thicknesses, temperatures, relative humidity, and so forth), but instead establishes a format for deciding what data must be recorded, when during the preparation/coating process, and by whom. 1.4 This practice does not establish accept/reject criteria for surface preparation or coating inspection, nor does it address methods of repairing deficiencies found. It does, however, provide a means of determining them. 1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
ASTM F941-99(2019) is classified under the following ICS (International Classification for Standards) categories: 47.020.05 - Materials and components for shipbuilding. The ICS classification helps identify the subject area and facilitates finding related standards.
ASTM F941-99(2019) has the following relationships with other standards: It is inter standard links to ASTM F941-99(2013), ASTM D4940-15(2020), ASTM D3276-15, ASTM D4940-10, ASTM F718-07(2011)e1, ASTM F718-07, ASTM D3276-07, ASTM D3276-05, ASTM F718-99(2005)e1, ASTM D4940-98(2003), ASTM D3276-00. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
ASTM F941-99(2019) is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: F941 − 99 (Reapproved 2019) An American National Standard
Standard Practice for
Inspection of Marine Surface Preparation and Coating
Application
ThisstandardisissuedunderthefixeddesignationF941;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginal
adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.Asuperscript
epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope 2. Referenced Documents
1.1 This practice is intended to serve as a guide for 2.1 ASTM Standards:
determining specific inspection requirements for marine sur- D3276 Guide for Painting Inspectors (Metal Substrates)
face preparation and coating application during new D4940 Test Method for Conductimetric Analysis of Water
construction, major retrofit, or routine maintenance contracts. Soluble Ionic Contamination of Blast Cleaning Abrasives
F718 Specification for Shipbuilders and Marine Paints and
1.2 It is intended that this practice be used to coordinate
Coatings Product/Procedure Data Sheet
inspection activities between ship owner, ship builder, coatings
2.2 SSPC Standards:
manufacturer and coatings applicator, and that specific require-
SSPC PA 2 Measurement of Film Thickness
ments be developed before the commencement of surface
SSPC-SP 1 Solvent Cleaning
preparation or coating application, or both.
SSPC-SP 3 Power Tool Cleaning
1.3 This practice does not provide a means of recording
SSPC-SP 5 White Metal Blast Cleaning
required data (for example, film thicknesses, temperatures,
SSPC-SP 6 Commercial Blast Cleaning
relativehumidity,andsoforth),butinsteadestablishesaformat
SSPC-SP 7 Brush-Off Blast Cleaning
for deciding what data must be recorded, when during the
SSPC-SP 10 Near-White Blast Cleaning
preparation/coating process, and by whom.
SSPC VIS-1 Pictorial Surface Preparation Standards for
1.4 This practice does not establish accept/reject criteria for Painting Steel Surfaces
surface preparation or coating inspection, nor does it address 2.3 JSRA Standard:
SPSS Standard for the Preparation of Steel Surface Prior to
methods of repairing deficiencies found. It does, however,
provide a means of determining them. Painting
2.4 ISO Standards:
1.5 This standard does not purport to address all of the
ISO 8501-1:1988 Preparation of Substrates Before Applica-
safety concerns, if any, associated with its use. It is the
tion of Paints and Related Products—Visual Assessment
responsibility of the user of this standard to establish appro-
of Surface Cleanliness
priate safety, health, and environmental practices and deter-
ISO 8502-1:1991 Preparation of Substrates Before Applica-
mine the applicability of regulatory limitations prior to use.
tions of Paints and Related Products—Tests for Assess-
1.6 This international standard was developed in accor-
ment of Surface Cleanliness: Soluble Iron Products
dance with internationally recognized principles on standard-
ISO 8502-2:1992 Preparation of Substrates Before Applica-
ization established in the Decision on Principles for the
tions of Paints and Related Products—Tests for the
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
1 3
This practice is under the jurisdiction of ASTM Committee F25 on Ships and Available from Society for Protective Coatings (SSPC), 40 24th St., 6th Floor,
Marine Technology and is the direct responsibility of Subcommittee F25.01 on Pittsburgh, PA 15222-4656, http://www.sspc.org.
Structures. JSRA standards are available from Shipbuilding Research Assoc. of Japan,
Current edition approved Dec. 1, 2019. Published January 2020. Originally Sempakushinko Bldg., 15-16 1-Chome Toranomon Minato-Ku, Tokyo 105.
approved in 1985. Last previous edition approved in 2013 as F941 – 99 (2013). Available from American National Standards Institute (ANSI), 25 W. 43rd St.,
DOI: 10.1520/F0941-99R19. 4th Floor, New York, NY 10036, http://www.ansi.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
F941 − 99 (2019)
Assessment of Surface Cleanliness—Laboratory Determi- 3.2 As surface preparation and coating requirements gener-
nation of Chloride on Cleaned Surfaces ally differ from ship area to ship area, this practice shall be
ISO 8502-3:1992 Preparation of Substrates Before Applica- applied separately to those areas of similar requirements.
tions of Paints and Related Products—Tests for the
3.3 Thecontentsofthispracticeshallbeaddressed(foreach
Assessment of Surface Cleanliness—Assessment of Dust
applicable ship area) at a prestartup meeting attended by the
on Steel Surfaces Prepared for Painting (Pressure Sensi-
parties mentioned in 1.2.
tive Tape Method)
ISO 8502-4:1993 Preparation of Substrates Before Applica-
4. Procedures
tions of Paints and Related Products—Tests for the
4.1 At the beginning of each new contract, after final
AssessmentofSurfaceCleanliness—GuidanceonEstima-
protective coatings selection, but well before the start of any
tion of the Probability of Condensation Prior to Paint
surface preparation or coating application, a meeting shall be
Application
held between those parties mentioned in 1.2.The Sample Form
ISO8502-6 PreparationofSubstratesBeforeApplicationsof
for Determining Marine Surface Preparation and Coating
Paints and Related Products—Tests for theAssessment of
Application Inspection Practices shall be completed (for each
Surface Cleanliness—Field Extraction of Water Soluble
separate ship area) by the responsible party prior to and each
Salts (Dr. Bresle Method)
item discussed and agreed upon during the meeting. The
ISO8502-9 PreparationofSubstratesBeforeApplicationsof
selected coating supplier(s) shall make available at this time
Paints and Related Products—Tests for theAssessment of
specific product data sheets in accordance with Specification
Surface Cleanliness—Field Evaluation of Water Soluble
F718 harmonizing with the design intent of the application for
Salts by Conductimetric Evaluation
each coating specified.
ISO 8503-1:1988 Preparation of Substrates Before Applica-
tion of Paints and Related Products—Surface Roughness 4.2 After completion of the sample form and after required
documentation has been submitted by the coatings supplier(s),
Characteristics of Blast-Cleaned Steel Substrates—
Comparator Procedure signatures of applicable parties shall be obtained and dated.
ISO 8503-2:1988 Preparation of Substrates Before Applica-
4.3 A means of collecting and recording the information
tion of Paints and Related Products—Surface Roughness
required by the sample form shall be developed (see 5.1.6.4).
Characteristics of Blast-Cleaned Steel Substrates—
Method for the Calibration of ISO Surface Profile Com-
5. Report
parators and for the Determination of Surface Profile—
5.1 The following paragraphs coincide with the individual
Focusing Microscope Procedure
sections of the sample form to aid in their proper completion.
ISO 8503-4:1988 Preparation of Substrates Before Applica-
Guide D3276 shall be consulted for additional guidance on
tion of Paints and Related Products—Surface Roughness
general surface preparation and coating inspectio
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