Blast Cleaning Standards: Cutting through the ... - aca conference

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April 23, 2012 Abstract Submission for the Nov 2012 ACA Corrosion & Prevention Conference in Melbourne David Beamish – President DeFelsko Corporation 802 Proctor Ave. Ogdensburg, NY 13669-2205 USA Tel: +1-315-393-4450 Fax: +1-315-393-8471 dbeamish@defelsko.com Developments in Coating Thickness Gauges and Paperless QA (Under the recommended topic “Protective Coatings”) Summary: This paper describes recent improvements to thickness measuring devices that simplify the task of obtaining accurate results in a timely manner. It will review recent, significant changes to two international documents, ASTM D7091 and SSPC-PA 2, and will explain developments in software and gauge design that now makes paperless QA with cloud computing a reality for all protective and industrial coating applications. Abstract: Regular film thickness measurement helps control material costs, manage application efficiency, maintain finish quality and ensure compliance with contract specifications. Paint manufacturers recommend target ranges to achieve optimum performance characteristics and clients expect these parameters to be met. Every owner, specification writer, applicator and inspector should know what equipment is available and know how to use it. This paper will begin by describing common types of hand-held, non-destructive magnetic, eddy current and ultrasonic instruments. It will also describe their latest design and operational features, and how stored readings can be easily transferred to data management software. Two common industry standards will then be reviewed. ASTM D7091 describes proper methods for obtaining measurements on both ferrous and non-ferrous metal substrates. Building on that, SSPC-PA 2 defines a procedure to determine if film thickness over an extended area conforms to specified min/max levels. Significant changes to both documents were published this year. Equivalent ISO documents 2808 and 19840, and AS 1580 and 3894.3 will be reviewed. Manually logging individual thickness measurements with pen and paper is time consuming and error prone. Testing instruments that store measurement results simplifies this task. Coupling this with simple analysis and reporting software results in a paperless QA (quality assurance) system that automates the inspection process to reduce time and costs. Recent developments in both software and gauge design make Paperless QA a reality for all protective and industrial coating applications. The trend today is towards simple, web-based software communicating with instruments that have built-in flash memory (mass storage) and the ability to wirelessly upload measurement data to the cloud for archiving and sharing with any web enabled device anywhere in the world. DAVID BEAMISH is President of DeFelsko Corporation, a New York-based manufacturer of hand-held coating test instruments sold worldwide. He is a Registered Professional Engineer and has more than 25 years’ experience in the design, manufacture, and marketing of these testing instruments in a variety of international industries including industrial painting, quality inspection, and manufacturing. He conducts training seminars and is a member of various organizations including NACE, SSPC, ASTM and ISO.
Dehumidification and Temperature Control during Surface Preparation, Application and Curing for Coatings/ Linings B Battle Dehumidification Technologies LP Houston Texas USA bbattle@rentdh.com Abstract This paper presentation is based on the Joint Technical Committee Report titled Dehumidification and Temperature Control during Surface Preparation, Application and Curing for Coatings/ Linings of Steel Tanks, Vessels, and Other Enclosed Spaces. NACE 6A192 (2000 Revision) SSPC-TR 3 Publication No. SSPC 01-07 Item No. 24083. The purpose of this paper is to provide an in depth assessment and review of the content of the Joint Technical Committee Report and present it to Australian Corrosion and Surface Preparation and Coating industry members and associates to ensure a thorough understanding of the content and how this can be applied for the benefit of future corrosion control in Australia. The use of dehumidification and temperature control has become more common during coating/lining operations and much has been learned about ways to optimise its use to achieve maximum benefits at minimum cost. This technical committee report presents current information about why and how dehumidification and temperature control are being used to achieve higher-quality coating/lining projects. It is intended to be a resource for engineers and coating consultants who write specifications for coating projects involving tanks or enclosed spaces. This report was originally prepared by NACE Task Group T-6A-60 on The Need for Dehumidification Equipment in the Application of Linings. This revision was prepared by NACE Task Group 003 on Dehumidification. This Task Group is administered by NACE Specific Technology Group (STG) 80 on Intersociety Joint Coatings Activities, and is sponsored by STG 03 on Protective Coatings and Linings – Immersion/Buried. The Task Group also has representation from SSPC Group Committee C.2 on Surface Preparation. This report is published by NACE International under the auspices of STG 80, and by SSPC. The content of the report that this paper will review includes a Glossary of terms, Methods of Dehumidification, Sizing Equipment, Impact of Contaminants and Relative Humidity, Dew Point Differential and Surface RH, Uses of Dehumidification and Temperature Control Equipment, Psychrometric Chart, Inspection Instrumentation, and Corrosion Mechanisms.
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