SSPC-SP 2
November 1, 1982
Editorial Revisions November 1, 2004 SSPC: The Society for Protective Coatings SURFACE PREPARATION SPECIFICATION NO. 2
Hand Tool Cleaning
1. Scope
1.1 This standard covers the requirements for hand tool cleaning steel surfaces.
2. Definitions
2.1Hand tool cleaning is a method of preparing steel surfaces by the use of non-power hand tools.
2.2 Hand tool cleaning removes all loose mill scale, loose rust, loose paint, and other loose detrimental foreign matter. It is not intended that adherent mill scale, rust, and paint be removed by this process. Mill scale, rust, and paint are consid-ered adherent if they cannot be removed by lifting with a dull putty knife.
2.3 SSPC-VIS 3 or other visual standard of surface prepa-ration agreed upon by the contracting parties may be used to further define the surface (see Note 8.1).
3. Referenced Standards
spring framework怎么卸载3.1  The latest issue, revision, or amendment of the refer-enced standards in effect on the date of invitation to bid shall govern, unless otherwise specified. Standards marked with an asterisk (*) are referenced only in the Notes, which are not requirements of this standard.
3.2 If there is a conflict between the requirements of any of the cited reference standards and this standard, the require-ments of this standard shall prevail.
3.3 SSPC SPECIFICATIONS:
SP 1Solvent Cleaning
* S P 3Power Tool Cleaning
* S P 11Power Tool Cleaning to Bare
Metal
* S P 15Commercial Grade Power Tool
Cleaning
VIS 3Guide and Reference Photographs
for Steel Surfaces Prepared by  for
Power- and Hand-Tool Cleaning
3.4 INTERNATIONAL ORGANIZATION FOR STANDARD-IZATION (ISO):
* 8501-1Preparation of steel substrates before appli-
cation of paints and related products: Visual
assessment of surface cleanliness—Part I.
4. Surface Preparation Before and After Hand Tool Cleaning
4.1Before hand tool cleaning, visible deposits of oil, grease, or other materials that may interfere with c
oating adhesion shall be removed in accordance with SSPC-SP 1 or other agreed-upon methods. Nonvisible surface contaminants such as soluble salts shall be treated to the extent specified by the procurement documents [project specifications] (see Note 8.2).
4.2 After hand tool cleaning and prior to painting, reclean the surface if it does not conform to this standard.
4.3 After hand tool cleaning and prior to painting, remove dirt, dust, or similar contaminants from the surface. Accept-able methods include brushing, blow off with clean, dry air, or vacuum cleaning.
5. Methods of Hand Tool Cleaning
5.1 Use impact hand tools to remove stratified rust (rust scale).
5.2 Use impact hand tools to remove all weld slag.
5.3 Use hand wire brushing, hand abrading, hand scrap-ing, or other similar non-impact methods to remove all loose mill scale, all loose or non-adherent rust, and all loose paint.
5.4Regardless of the method used for cleaning, if specified in the procurement documents, feather the edges of remaining old paint so that the repainted surface can have a reasonably smooth appearance.
5.5If approved by the owner, use power tools or blast cleaning as a substitute cleaning method for this standard.
SSPC-SP 2
November 1, 1982
Editorial Revisions November 1, 2004
6. Inspection
6.1 Unless otherwise specified in the procurement docu-ments, the contractor or material supplier is responsible for quality control to assure that the requirements of this document are met.  Work and materials supplied under this standard are also subject to inspection by the purchaser or an authorized representative.  Materials and work areas shall be accessible to the inspector.
6.2 Conditions not complying with this standard shall be corrected.  In the case of a dispute, an arbitration or settlement procedure established in the procurement documents (project specification) shall be followed.  If no arbitration or settlement procedure is established, then a procedure mutually agree-able to purchaser and material supplier (or contractor) shall be used.
7. Disclaimer
7.1 While every precaution is taken to ensure that all in-formation furnished in SSPC standards and specifications is as accurate, complete, and useful as possible, SSPC cannot assume responsibility nor incur any obligation resulting from the use of any materials, coatings, or methods specified herein, or of the specification or standard itself.
7.2 This standard does not attempt to address problems concerning safety associated with its use. The user of this stan-dard, as well as the user of all products or practices described herein, is responsible for instituting appropriate health and safety practices and for ensuring compliance with all governmental regulations.
8. Notes
Notes are not requirements of this standard.
8.1 Note that the use of visual standards in conjunction with this standard is required only when they are specified in the procurement documents (project specification) covering the work. It is recommended, however, that the use of visual stan-dards be made mandatory in the procurement documents.
SSPC-VIS 3 provides a suitable comparative visual stan-dard for SSPC-SP 2, SSPC-SP 3, SSPC-SP 11, and SSPC-SP 15. ISO 8501-1 may also serve as a visual standard.
8.2  The SSPC Surface Preparation Commentary (SSPC-SP COM)  contains additional information and data relevant to this specification.  The Commentary is non-mandatory and is not part of this specification. The table below lists the subjects discussed relevant to hand tool cleaning and the appropriate Commentary Section.
Subject  Commentary Section
Film Thickness (10)
Maintenance Painting ......................................4.2
Rust, Stratified Rust,
Pack Rust, and Rust Scale ..........................4.3.1
Visual Standards (11)
Weld Spatter .................................................4.4.1

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