Transcript Document 7711784

SSPC Update
North Central States Consortium
October 8-9, 2013
Omaha, Nebraska
William L. Shoup,
SSPC Executive Director
Learning Objectives
• Update status of SSPC standards useful to
DOTs
> Completed new standards
> Completed revisions of standards
> New standards projects starting in 2013
What is SSPC?
• SSPC is a not-for-profit organization that
provides industry standards for “good
practice” in industrial painting
• Resource for training and certification
• Resource for current industry information
• Exclusive focus on protective coatings
New Standards Issued 2012
• Waterjet Cleaning of Metals - 4 Standards
(formerly SSPC-SP 12/NACE No. 5)
>
>
>
>
SSPC-SP WJ-1/NACE WJ-1, Clean to Bare Substrate
SSPC-SP WJ-2/NACE WJ-2, Very Thorough Cleaning
SSPC-SP WJ-3/NACE WJ-3, Thorough Cleaning
SSPC-SP WJ-4/NACE WJ-4, Light Cleaning
• Determining Compliance with Specified Profile
(SSPC-PA 17)
• Guide to Selecting Coatings for Galvanized
Steel (SSPC-Guide 19)
Joint
Waterjetting Standards
• SSPC-SP 12/NACE No. 5 now 4 separate
standards based on level of cleanliness
>
>
>
>
WJ 1 – Clean to Bare Substrate
WJ 2 – Very Thorough Cleaning
WJ 3 – Thorough Cleaning
WJ 4 -- Light Cleaning
• May be an alternative to dry blast cleaning for
maintenance work
WJ 2 Definition
• Free of all visible oil, grease, dirt, rust, and
other corrosion products except for
> randomly dispersed stains of rust and other
corrosion products
> tightly adherent thin coatings
> other tightly adherent foreign matter
2012 Changes
Waterjetting Standards
• 2 new non-mandatory appendices for assessing
levels of flash rust
> wipe test (based on NSRP Flash Rust Evaluation
Guidelines)
> tape pull test (based on ISO dust level test)
• Added distribution clarification in WJ-2 and WJ-3:
Staining or tightly adherent matter limited to no
more than
> 5% of each 9 in2 area of surface (WJ-2)
> 10% of each 9 in2 area of surface (WJ-3)
SSPC-PA 17, Determining Compliance
with Specified Profile Range
• Take readings at minimum of 3 locations on each
surface prepared by an individual piece of equipment
used during a work shift or 12- hour period
• Number of readings at each location is determined by
ASTM Method specified from D 4417 or D 7127, or
minimum of 3 readings if not addressed in ASTM
Method
• Average of readings at each location= location
average
• Average of “location averages” = single “profile
measurement” – must be in required range
Example: Determining Profile Compliance
Assume ASTM D 4417 Method C (tape), and 1
blast pot and 1 power tool used on shift
•Profile verified separately for each tool used
•Identify three 6 x 6-inch locations for areas
prepared by power tool and three 6 x 6-inch
areas prepared by blast pot in which to take
readings
•Prepare two tapes in each of three locations
prepared by blast pot, and three locations
prepared by power tool cleaning
–Average of readings in each of the 6 locations
must comply with specified profile range
PA 17 Extent of Nonconforming
Areas
• Similar to PA 2 procedure
• Determine averages for locations spaced at
5-ft. intervals radiating in 4 equally-spaced
directions from non-conforming area
• Each location average must comply with
project requirements
• Stop measuring in a given direction when 2
consecutive locations are in compliance
• Document location of nonconforming areas
Dashed line indicates boundary of area prepared by single tool during work shift
OK
STOP
OK
STOP
OK
NO
OK
OK
OK
(Limit of area prepared
during work shift)
STOP
SSPC-PA 17
Process Control Option (if specified)
• Appendix B provides option for specifying number of
measurements
> Based on process changes following acceptance of a projectspecific “field standard”
> Contractor prepares a 2 x 2 area at jobsite, documents list of
process parameters listed in appendix (nozzle size, nozzle
pressure, compressor size, hose length, etc.) after acceptance
> Contractor must confirm profile remains in compliance if any of
above process parameters occurs during production work
> Measurements to determine compliance also required after
completion of production work
• Status: Published September 2012
Guide 19 - Selecting Coatings
for Galvanized Steel
• Contains recommendations for selecting
coatings for galvanized steel based on
> Service environment (buried, marine, immersion,
insulated, atmospheric
> Condition of galvanized surface (new, weathered,
deteriorated)
> Extent of area being coated (repair, topcoat)
• Status: Published November 2012
Revised Standards Issued
2012 to date
• Mineral and Slag Abrasives (SSPC-AB 1)
• Determining Compliance with Dry Coating
Thickness Requirements (SSPC-PA 2)
• Power Tool Cleaning to Bare Metal
(SSPC-SP 11)
• Commercial Grade Power Tool Cleaning
(SSPC-SP 15)
• Field Methods for Extraction and Analysis of
Soluble Salts on Steel and Other Nonporous
Substrates (SSPC-Guide 15)
2013 Revisions SSPC-AB 1
• Clarifies requirements for
> Qualification testing (supplier responsible)
> Conformance testing for verification upon receipt
• Quality control testing of media in field for oil
and conductivity
• Appendix B (nonmandatory unless specified as
requirement) contains many requirements from
MIL-A-22262(sh)
• Status: Published April 2013
Additional AB 1 Requirements
when Appendix B is Invoked
• Friability (CARB test) – meet CARB requirements
• Radioactivity (Gross Cobalt-60) – no more than
20.0 picoCuries per gram
> Specific Cobalt-60 concentration less than 0.05
picoCuries per gram
• Crystalline Silica Content (NIOSH Method 7603) –
must be Class A
• Hazardous material content (TCLP test) – nonhazardous
2012 Revisions SSPC-PA 2
• “Procedure for Determining Conformance to
Dry Coating Thickness Requirements”
• Options for specifying more or less stringent
compliance requirements
• Clarified process for defining extent of
nonconforming areas
• Added appendices with info on measuring
DFT on edges, pipe exteriors
• Status: Published May 2012
PA 2 Options for Specifier
Thickness
Spot
Reading
Gage Reading
Area Measurement
Level 1
Minimum
Maximum
Unrestricted
As specified
As specified
Unrestricted
As specified
As specified
Level 2
Minimum
Unrestricted
As specified
As specified
Maximum
Unrestricted
120% of maximum
As specified
Minimum
Unrestricted
80% of minimum
As specified
Maximum
Unrestricted
120% of maximum
As specified
Minimum
Unrestricted
80% of minimum
As specified
Maximum
Unrestricted
150% of maximum
As specified
Minimum
Unrestricted
80% of minimum
As specified
Maximum
Unrestricted
Unrestricted
Unrestricted
Level 4
Level 5
Dashed line indicates boundary of area painted during work shift
OK
OK
OK
STOP
STOP
OK
OK
STOP
OK
OK
NO
OK
OK
STOP
OK
OK
OK
OK
OK
OK
OK
STOP
STOP OK
OK
OK
NO
OK
STOP
5 ft area
preceding a
nonconforming spot
must be
remeasured
after
corrections
are made
OK
OK
OK
NO
OK
OK
STOP
STOP OK
Dashed line indicates boundary of area painted during work shift
OK
STOP
STOP
OK
STOP
5 ft
NO
OK
STOP OK
OK
OK
OK
5 ft
Suspect area
preceding a
nonconforming
spot must be
remeasured after
corrections are
made
NO
OK
5 ft
STOP
(Limit of
area
coated
during
work shift)
OK
STOP
Dashed line indicates boundary of area painted during work shift
(Limit of
area
coated
during
work shift)
OK
(Limit of
area
coated
during
work shift)
STOP
Dashed line indicates boundary of area painted during work shift
OK
5 ft
Dashed line indicates boundary of area painted during work shift
OK
2012 Revisions to Power Tool
Cleaning Standards
• Affects SSPC-SP 11 and SSPC-SP 15
• Default for profile measurement is ASTM D
4417 Method B (depth micrometer) unless
otherwise specified
• Allows use of ”wire bristle impact tool” as well
as conventional wire brushes, abrasive discs,
needle guns, etc.
• Feathering of existing coating is required
unless otherwise specified
2013 Revisions SSPC Guide 15,
Extraction and Analysis of
Soluble Salts on Steel
• Revision published August 2013
• Reorganization based on methodology of
measurement techniques
> New fully automated one-step meters
> Existing multi-step procedures
• Updated references
PA-Guide 13, Application of Coating Systems
with ZR Primers to Steel Bridges
• Developed in cooperation with National Steel Bridge
Alliance and AASHTO
• Guidance on best industry practice for shop application
of zinc rich primers to previously uncoated bridge steel
• includes surface preparation and the mixing,
application, and cure of coatings.
• Contains a series of charts listing the detailed
requirements for surface preparation, environmental
conditions, coating application, curing, and verification
testing.
SSPC Training Programs
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Specification Essentials
Bridge Coatings Inspector Program
Protective Coating Inspector Program
Coating Application Specialist (CAS) Program
Airless Spray Basics
Plural Component Basics
Basics of Steel Surface Preparation (online)
Applicator Training Basics (online)
SSPC Services to the
Fabrication Industry
• Standards for best surface preparation and painting
practices
• Publications on state-of-the-art practices
• Training and certification programs - Coating
Specialists, Inspectors, Blasters and Painters
• Technical resource line - 1/877-281-7772 ext. 2224 or
2223
• Contractor Qualification Program (QP 3)
• Coatings Talk and DOT list serve information
exchange
Questions and Comments
Welcome
General Information/Questions:
William L. Shoup, Executive Director
SSPC
1/877-281-7772 ext. 2230
[email protected]
Questions/Info on SSPC Standards:
Aimée Beggs, Standards Development Specialist
SSPC
1-877-281-7772 x 2223
([email protected])
Thank you!