1、SSPC-TR 4Publication No. SSPC 01-08NACE 80200Item No. 24209Joint Technology ReportPreparation of Protective Coating Specificationsfor Atmospheric ServiceThis NACE International (NACE)/Society for Protective Coatings (SSPC) report represents a consensus ofthose individual members who have reviewed th
2、is document, its scope, and provisions. Its acceptancedoes not in any respect preclude anyone, whether he has adopted the report or not, from manufacturing,marketing, purchasing, or using products, processes, or procedures not in conformance with this report.Nothing contained in this NACE/SSPC repor
3、t is to be construed as granting any right, by implication orotherwise, to manufacture, sell, or use in connection with any method, apparatus, or product covered byLetters Patent, or as indemnifying or protecting anyone against liability for infringement of Letters Patent.This report should in no wa
4、y be interpreted as a restriction on the use of better procedures or materials.Neither is this report intended to apply in all cases relating to the subject. Unpredictable circumstancesmay negate the usefulness of this report in specific instances. NACE and SSPC assume no responsibilityfor the inter
5、pretation or use of this report by other parties.Users of this NACE/SSPC report are responsible for reviewing appropriate health, safety, environmental,and regulatory documents and for determining their applicability in relation to this report prior to its use.This NACE/SSPC report may not necessari
6、ly address all potential health and safety problems orenvironmental hazards associated with the use of materials, equipment, and/or operations detailed orreferred to within this report. Users of this NACE/SSPC report are also responsible for establishingappropriate health, safety, and environmental
7、protection practices, in consultation with appropriateregulatory authorities if necessary, to achieve compliance with any existing applicable regulatoryrequirements prior to the use of this report.CAUTIONARY NOTICE : The user is cautioned to obtain the latest edition of this report. NACE/SSPCreports
8、 are subject to periodic review, and may be revised or withdrawn at any time without prior notice.NACE and SSPC require that action be taken to reaffirm, revise, or withdraw this report no later than tenyears from the date of initial publication.Approved December 20002000, NACE International and SSP
9、CNOTICE TO THE READER : The NACE and SSPC releases of this publication contain identical wording inthe same sequence. Publication format may differ.SSPC: The Society for Protective Coatings40 24th Street, 6th FloorPittsburgh, PA 15222-4656+1 (412) 281-2331NACE International1440 South Creek DriveHous
10、ton, TX 77084-4906+1 (281) 228-6200Printed by NACE InternationalNACE 80200/SSPC-TR 42ForewordThe purpose of this NACE/SSPC technical committeereport is to describe current practices for the preparationof a protective coating specification for atmosphericservice. It provides a general description of
11、a specifi-cation, as well as a review of the contents of a specifi-cation; the typical selection of protective coatings; and theestablishment of job and inspection requirements.Format and writing style are stressed. There is also dis-cussion of commercial aspects of the work that have nottypically b
12、een contained in the technical specification.This report is intended for facility owners, engineering/erection contractors, in-plant protective coating special-ists, inspectors, and others responsible for protectivecoating work.This joint technical committee report was prepared by theSSPC/NACE Task
13、Group 004 on Coating Specifications.This joint task group is administered by NACE SpecificTechnology Group (STG) 80 on Intersociety JointCoatings Activities. It is also sponsored by STG 03 onProtective Coatings and Linings Immersion/Buried.This report is published by NACE under the auspices ofSTG 80
14、, and by SSPC.Definition of a SpecificationA coating specification is a document that details themandatory technical requirements of work involving theuse of protective coatings. It includes requirements forthe quality of materials to be used during a protectivecoating application and the work to be
15、 accomplished.The general objective of the coating specification is toensure that the owner or purchaser receives the finishedwork product that is desired. This is accomplished byproviding a detailed definition of work to be done in awell-designed specification.Without a well-designed protective coa
16、ting specification,problems such as unrealistic bidding, disputes of specificrequirements, inappropriate materials or workmanship,delays in completing the work, costly change orders, andincreased costs, are likely to occur. Specifications areconcise and specific, and contain essential informationand
17、 requirements.There are several objectives for preparing a protectivecoating specification. These include, but are not limitedto, the following: To obtain specific protective coating products or theirequals; To assure quality materials and workmanship; To determine inspection requirements; To assure
18、 timely completion of work; To avoid disputes; To obtain reasonable costs that reflect the specifi-cation requirements; To avoid costly change orders and claims; To meet safety, environmental, and regulatoryrequirements of the protective coating operation; and To assure suitable coating systems are
19、applied to thecorrect equipment.General Specification CharacteristicsThe following topics are frequently included in the firstpart of a protective coating specification, not necessarilyin the order as discussed in subsequent paragraphs. Scope of Work: A summary is used at the beginningof a specifica
20、tion to state the scope and purpose ofthe work. It provides general information and notspecific items that are described elsewhere in otherspecifications. A title is sometimes adequate for thispurpose. Reference Section: The reference section lists alldocuments to be used in conjunction with the spe
21、cifi-cation. No reference is made to standards ortechnical specifications that are not part of thespecification requirements. Generally, only onestandard method is referenced for each requirement,although alternative methods are often available.These documents might include, but are not limitedto, t
22、hose of AISC , ( 1) ASTM, (2) AWS, (3) AWWA, (4)ISO, (5) NACE, SSPC, ACI, (6) ICRI, (7) PDCA, (8) andcoating manufacturers materials safety data sheets(MSDS) and product data sheets._ (1) American Institute of Steel Construction (AISC), 1 E Wacker Drive, Suite 3100, Chicago, IL 60601-2001.(2) Americ
23、an Society for Testing and Materials (ATSM), 100 Barr Harbor Drive, West Conshohocken , PA 19428-2959.(3) American Welding Society Inc. (AWS), 550 N W Le Jeune Road, Miami, FL 33126.(4) American Water Works Association (AWWA), 6666 W Quincy Avenue, Denver, CO 80235.(5) International Organization for
24、 Standardization (ISO), Case Postale 56, Geneva CH-1211, Switzerland.(6) American Concrete Institute (ACI), P.O. Box 9094, Farmington Hills, MI 48333.(7) International Concrete Repair Institute (ICRI), 1323 Shepard Drive, Suite D, Sterling, VA 21064.(8) Painting and Decorating Contractors of America
25、 (PDCA), 3913 Old Lee Highway, Suite 33B, Fairfax, VA 22030.NACE 80200/SSPC-TR 43 Definition Section: Terms that could be subject tointerpretation are defined in this section. Submittals Section: Documents or samples to besupplied by the coating contractor are normallyspecified in this section. Thes
26、e might include thefollowing:Samples of coatings to be used ;Drawdown films of these coatings;Coated reference panels ;Certificates of conformance or performance ;Manufacturers product data sheets and appli-cation instructions;Material safety data sheets ;Contractors projected schedule or work plan
27、;Contractor certification (such as SSPC 1, 2, 3 orequivalent)Contractors QC program and procedures; andContractors inspector training and certification.The submittals are usually kept to a minimum andare not always utilized unless specified by the owneror purchaser in order to accomplish the work. Q
28、uality Assurance Section: This section details allitems deemed necessary for quality assurance. Thiscan include requesting qualifications of the contractorand his personnel, certification of the contractor andpersonnel, and field sampling. It frequently includes aproposed inspection plan as a submit
29、tal, because thecontractor might be responsible for inspection as wellas for quality of the work. Normally, the contractor isalso responsible for meeting all applicable regula-tions as well as the owners working rules and safetystandards. Prejob Visit and Conference: Many specificationsrequire a job
30、site visit and conference to review workprocedures and standards. Delivery, Storage, Handling, and Disposal Section:Detailed in this section are requirements concerningdelivery, storage, and handling of products to beused. Collection, storage, and disposal of wastematerials and abrasive debris are a
31、lso detailed. Site Conditions Section: Conditions at the job sitethat can affect the work are defined in this section orin other contract documents. These conditions caninclude utility availability, safety, environmental, andpersonnel considerations. Any potentially hazardousmaterials or operations
32、are normally noted. Failureto note site conditions in the specification can resultin costly change orders. Resolution of Conflicts: A procedure for resolvingconflicts in the specification, references, or productmanufacturers instructions is normally stated.Product SpecificationThis portion of the sp
33、ecification defines the requirementsfor protective coating products to be employed in thework. Protective coating products can be specified bybrand name, performance criteria, or qualified productslist. When specific brand names are listed, it is commonpractice to provide the coating contractor with
34、 a choice byspecifying two or more products.All protective coatings in a single system are usuallysupplied by the same manufacturer. Color requirementsare typically specified in this section.Project ExecutionThe execution section details surface preparation andapplication of protective coatings. Sur
35、face preparation isa vital factor in achieving long-term durability of the coat-ing system. Surface preparation is defined by industrystandards and can include hand/power tool cleaning,abrasive blasting, and hydroblasting, among others, or acombination of different techniques. If an abrasive isused,
36、 the owner generally specifies the type. However,depth of anchor pattern is usually specified in the coatingmanufacturers data sheets. The owner also specifiesany limiting conditions such as requirements for dust,debris, and overspray control, limiting schedules forabrasive blast cleaning or coating
37、 application, and anyother limitations affecting the work.The protective coating systems to be used for carbonsteel piping, vessels, tankage, or other equipmentexposed to the atmosphere are typically specified, alongwith the level of surface preparation, coating material,number of coats, dry film th
38、ickness, and finish color.Other protective coating systems for use under insulationor fireproofing, at elevated equipment operating temper-atures, for safety identification, below grade, or water,and other environments or situations are also specified.Protective coating systems are frequently listed
39、 in tabularform within or at the end of the specification.At times, the owner specifies that hot-dip galvanizing besubstituted for protective coating systems, especially forhand rails, stairs, ladders, safety cages, or other struc-tures. As appropriate, galvanizing is sometimes specifiedfor beams an
40、d columns. The standards that are to beused for galvanizing applications are usually included inthe reference section of the specification and can includeASTM A 123 4 and ASTM A 780. 5NACE 80200/SSPC-TR 44The limitations on weather or other conditions that mightadversely affect the work are normally
41、 defined by theowner in the specification or other contract documents.Such limitations can include temperature, humidity, andwind. When limits defined vary from those recommendedby the coating manufacturer, the contractor is typicallyresponsible for resolving this problem with the owner.Purchased eq
42、uipment, such as vessels, pumps, rotatingmachinery, valves, and other equipment items are some-times specified to be prime coated in the shop prior tofield delivery . Repair and topcoat systems are included inthe specification in the event such prime-coated equip-ment is damaged and/or requires topc
43、oat in the field.This section also includes those materials the owner doesnot want coated, unless otherwise specified, such as: Stainless steel Galvanized steel Nonferrous metals Thermal insulation jacketing or covering Concrete PlasticsShielding or masking is frequently required by the ownerto prot
44、ect sensitive equipment, such as electronic equip-ment, gauge glasses, valve stems, machined surfaces,equipment identification labels, lighting fixtures, compres-sors, pumps, electric motors, or other equipment, fromabrasive debris and dust and from overspray.When repairs are required, the contracto
45、r typicallyprepares a repair procedure that can contain surfacepreparation, type and number of coats, and applicationtechniques. This normally includes purchased equip-ment. These repair procedures are submitted to theowner for approval.InspectionOwner inspection requirements are normally defined in
46、this section. This has been accomplished by referencingaccepted industry quality criteria test methods as avail-able from NACE, SSPC, ASTM, or others. Based onthese requirements, the contractor submits the inspectionplan discussed previously, and informs the owner whenparticular inspection points ar
47、e reached and available.Inspectors are typically certified by the NACE CoatingInspector Certification Program or equivalent. It is usuallyspecified that the owners inspector has full access to allwork.Owners frequently request participation of the ownersinspector in specific areas of coating applica
48、tion includingbut not limited to: Coating contractors recordkeeping the NACECoating Inspectors Logbook 6 and The Inspection ofCoatings and Linings 7 contain information and formsfor accurate and precise recordkeeping. Environmental conditions such as temperature,humidity, wind, direct sunlight, rain
49、, or other environ-mental conditions during storage of coating mater-ials, surface preparation, application, and curing. Surface preparation cleaning equipment, operationof equipment, degree of cleaning, and anchor pat-tern, if specified. Application storage of materials, mixing, appli-cation equipment, application, wet film thickness,dry-film thickness, and appearance. Acceptance testing appearance, hardness, cure,adhesion, holiday inspection, or others.In accordance with these concerns, the owner oftenestablishe
