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<br />January 1, 2007
<br />SSPC: The Society for Protective Coatings
<br />JOINT SURFACE PREPARATION STANDARD
<br />SSPC-SP 6/NACE NO. 3
<br />Commercial Blast Cleaning
<br />This The Society for Protective Coatings (SSPC)/NACE
<br />International (NACE) standard represents a consensus of
<br />those individual members who have reviewed this document,
<br />its scope, and provisions. It is intended to aid the manufacturer,
<br />the consumer, and the general public. Its acceptance does not
<br />in any respect preclude anyone, whether he has adopted the
<br />standard or not, from manufacturing, marketing, purchasing,
<br />or using products, processes, or procedures not addressed in
<br />this standard. Nothing contained in this SSPC/NACE standard
<br />is to be construed as granting any right, by implication or
<br />otherwise, to manufacture, sell, or use in connection with any
<br />method, apparatus, or product covered by Letters Patent,
<br />or as indemnifying or protecting anyone against liabiliry for
<br />infringement of Letters Patent. This standard represents current
<br />technology and should in no way be interpreted as a restriction
<br />on the use of better procedures or materials. Neither is this
<br />standard intended to apply in all cases relating to the subject.
<br />Unpredictable circumstances may negate the usefulness of
<br />this standard in specific instances. SSPC and NACE assume
<br />no responsibility for the interpretation or use of this standard
<br />by other parties and accept responsibility for only those official
<br />interpretations issued by SSPC or NACE in accordance with
<br />their governing procedures and policies which preclude the
<br />issuance of interpretations by individual volunteers.
<br />Users of this SSPC/NACE standard are responsible
<br />for reviewing appropriate health, safety, environmental, and
<br />regulatory documents and for determining their applicability
<br />in relation to this standard prior to its use. This SSPC/NACE
<br />standard may not necessarily address all potential health and
<br />safety problems or environmental hazards associated with
<br />the use of materials, equipment, and/or operations detailed
<br />or referred to within this standard. Users of this SSPC/NACE
<br />standard are also responsible for establishing appropriate
<br />health, safety, and environmental protection practices, in
<br />consultation with appropriate regulatory authorities if necessary,
<br />to achieve compliance with any existing applicable regulatory
<br />requirements prior to the use of this standard.
<br />CAUTIONARY NOTICE: SSPC/NACE standards are
<br />subject to periodic review, and may be revised or withdrawn at
<br />any time in accordance with technical committee procedures.
<br />SSPC and NACE require that action be taken to reaffirm,
<br />revise, or withdraw this standard no later than five years from
<br />the date of initial publication. The user is cautioned to obtain
<br />the latest edition. Purchasers may receive current informa-
<br />tion on all standards and other publications by contacting the
<br />organizations at the addresses below:
<br />OSSPC: The Society for Protective Coatings
<br />40 24th Street, Sixth Floor
<br />Pittsburgh, PA 15222
<br />(telephone +1 877/281-7772)
<br />ONACE International
<br />1440 South Creek
<br />Houston, TX 77084-4906
<br />(telephone +1 281 /228-6200)
<br />Foreword
<br />This joint standard covers the use of blast cleaning
<br />abrasives to achieve a defined degree of cleaning of steel
<br />surtaces prior to the application of a protective coating or
<br />lining system. This standard is intended for use by coating
<br />or lining specifiers, applicators, inspectors, or others who
<br />may be responsible for defining a standard degree of surface
<br />cleanliness.
<br />The focus of this standard is commercial blast cleaning.
<br />White metal blast cleaning, near-white metal blast cleaning,
<br />industrial blast cleaning, and brush-off blast cleaning are
<br />addressed in separate standards.
<br />Commercial blast cleaning provides a greater degree of
<br />cleaning than industrial blast cleaning (SSPC-SP 14/NACE
<br />No. 8') but less than near-white metal blast cleaning (SSPC-
<br />SP 10/NACE No. 22).
<br />Commercial blast cleaning is used when the objective
<br />is to remove all visible oil, grease, dust, dirt, mill scale, rust,
<br />coating, oxides, corrosion products, and other foreign matter,
<br />leaving staining or shadows on no more than 33 percent of
<br />each unit area of surface.
<br />The difference between a commercial blast cleaning and
<br />a near-white metal blast cleaning is in the amount of staining
<br />permitted to remain on the surface. Commercial blast cleaning
<br />allows stains or shadows on 33 percent of each unit area of
<br />surface. Near-white metal blast cleaning allows staining or
<br />shadows on only 5 percent of each unit area of surface.
<br />The difference between a commercial blast cleaning and
<br />an industrial blast cleaning is that a commercial blast cleaning
<br />removes all visible oil, grease, dust, dirt, mill scale, rust, coating,
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