“Measurement of Dry Coating Thickness with magnetic Gages” HOW MUCH IS ENOUGH? Statistical method to determine the minimum number of readings required. SSPC-PA 2 – Measurement of Dry Paint Thickness with Magnetic Gauges Procedures to Measure Dry Film Thickness of Nonmagnetic Coatings over Magnetic Substrates…
Author: Qa Qc Professionals
Learn five key steps to prepare your next hot-dip galvanized steel project for paint.
Communicate with the Galvanizer Determine the Condition of the Surface Newly Galvanized Partially Weathered Fully Weathered Clean the Surface Remove bumps, runs, and drips Remove organic materials Rinse and dry Profile the Surface Sweep Blasting Wash Primer Acrylic Pretreatment Surface Grinding Painting
SECTION XII – TRANSPORT TANKS T, TV, TD and PRT Certificates
(T) Transport Tanks T-1 Manufacture of Class 1 transport tanks at the above location only T-4 Manufacture of Class 1 & 2 transport tanks at the above location only T-5 Manufacture of Class 1 & 3 transport tanks at the above location only T-7 Manufacture…
SECTION X – FIBER REINFORCED PLASTIC VESSELS RP Certificate
(RP) Fiber-Reinforced Plastic Vessels RP-1 Manufacture of Class I and Class II reinforced plastic pressure vessels at the above location only RP-5 Manufacture of Class I and Class II reinforced plastic pressure vessels at the above location and Class II reinforced plastic pressure vessels only…
SECTION VIII DIV. 3 PRESSURE VESSELS U3, UV3 and UD3 Certificates
(U3) Pressure Vessels (Div. 3) U3-1 Manufacture of pressure vessels at the above location only U3-2 Manufacture of pressure vessels at the above location only (This authorization does not cover welding, brazing or fusing) U3-3 Manufacture of pressure vessels at the above location and field…
SECTION VIII, DIV. 2 – PRESSURE VESSELS U2 and UV Certificates
(U2) Pressure Vessels (Div. 2) U2-1 Manufacture of Class 1 and Class 2 pressure vessels at the above location only U2-2 Manufacture of Class 1 and Class 2 pressure vessels at the above location only (This authorization does not cover welding, brazing or fusing) U2-3…
SECTION VIII, Division 1 – PRESSURE VESSELS U, UM, UV, UD and PRT Certificates
(U) Pressure Vessels (Div. 1) U-1 Manufacture of pressure vessels at the above location only U-2 Manufacture of pressure vessels at the above location only (This authorization includes mass produced pressure vessels) U-3 Manufacture of pressure vessels at the above location only (This authorization does…
ISO 9000:2015 principles of Quality Management
The ISO 9000:2015 and ISO 9001:2015 standards are based on seven quality management principles that senior management can apply to promote organizational improvement.
SECTION IV – HEATING BOILERS AND WATER HEATERS H, HLW, HV and PRT Certificates
(H) Heating Boilers/Cast Iron Sectional Heating Boilers H-1 Heating boilers except cast iron and cast aluminum at the above location only H-2 Heating boilers except cast iron and cast aluminum at the above location only (This authorization includes mass produced heating boilers) H-3 Heating boilers…
SECTION I – POWER BOILERS S, A, PP, M, E, V and PRT Certificates
(S) Power Boilers S-1 Manufacture and assembly of power boilers at the above location only S-2 Manufacture and assembly of power boilers at the above location and field sites controlled by the above location S-3 Manufacture and assembly of power boilers at field sites controlled…
Terms and definitions of painting
Some of the main definitions applicable to a painting process are defined below: Corrosion Ability of an environment to cause corrosion in a given system Curing Hardening of the liquid paint by heat or by chemical reaction Curing Agent Is the component which produces the…
SOME TYPE OF SKIDS
Chemical injection skids: Generally the Oil and Gas Extraction process requires Injection for its application. Chemical injection systems typically consist of multiple chemical services with associated single or multi-compartment storage tanks or pressure vessels. In the Injection, Major factor is the Injection rate and Injection…
VISCOMETER
A fluid’s resistance to flow is its viscosity—the ratio of force required to overcome internal friction between layers of fluid (shearing stress) to the change in speed between layers of fluid (velocity gradient). Many quality control measures are based on viscosity. For example, paint needs to…
ISO STANDARS FOR PAINT AND VARNISH
ISO 4618:2006 Paints and varnishes – Terms and definitions. ISO 8501-1:2007 Preparation of steel substrates before application of paints and related products – Visual assessment of surface cleanliness – Part 1: Rust grades and preparation grades of uncoated steel substrates and of steel substrates after…
INSULATION
What is Aerogel insulation? Aerogel is a synthetic porous ultralight material derived from a gel, in which the liquid component for the gel has been replaced with a gas. The result is a solid with extremely low density and low thermal conductivity. … Carbon aerogels…
Airless Sprayer Tip Sizing Guide
Picking the correct tip and size is essential for a quality finish and ease of use. This may seem a bit confusing or complicated at first but once you understand it, picking the right tip is not rocket science and can save you time and…
How To Know That Paint Has Dried
Painting a bridge or an industrial structure is an expensive operation. Now more than ever, state DOTs and facility owners are specifying warranties and application methods to ensure the longest possible life for their coatings. Determining what factors affect paint cure can help to achieve…
Handling and Installing Valves
Identify the common requirements for valve nameplates Identify the correct procedure for storing and handling valves. Valve Nameplates As there are many different types of valves and different standards that are applicable for each type of valve it is not possible to give a definitive…
Weld defects, their Causes and Remedies
Two Major Aspects of Fusion Welding Effects of welding : Effects of welding are those which will always happen when we weld –Residual stressesDistortionFormation of HAZ with metallurgical changes Defects of welding : Defects are those which can be theoretically eliminated, such as –Cracks, Lack…
Valves for Piping Systems
Fluids and gassed do not just flow freely through piping systems. They must be regulated and at certain points stopped. There are a number of different types of valves used in piping systems, the most common types of stop valves being: Ball valve Butterfly valve…
Fittings for Pipe Joints
How Fittings are connected to Pipes BSP fittings are a family of fittings used to connect up threaded pipe and equipment. They are manufactured from pipe, bar, hollow bar, castings or forgings. The fittings are used in non-critical, low pressure applications where welding is not…
Introduction to Pipe Fittings
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ADDITIONAL TEST IN GALVANIZED STEEL
Every hot-dip galvanized steel part is inspected for coating thickness and visually for appearance and finish. However, there are a few additional tests that may be conducted on certain types of parts or when there is a question or concern about a specific item. Adherence…