NACE 2 Ultimate Study Guide questions and answers 2023

NACE 2 Ultimate Study Guide questions and answers 2023ASTM D 4258 standard practice for surface cleaning concrete for coating ASTM D 4259 standard practice for abrading concrete ASTM D 4260 standard practice for acid etching ASTM D 4261 standard practice for surface cleaning concrete unit masonry for coating ASTM D 4262 testing ph of chemically cleaned or etched concrete surface ASTM D 4263 standard test method for indicating moisture in concrete by the plastic sheet method NACE No. 6/ SSPC - SP 13 joint surface preparation standard for surface preparation of concrete SP 0178 Design, fabrication, and surface finish practices for tanks and vessels to be lined for immersion service NACE No. 1/ SSPC- SP 5 white metal blast NACE No. 2/ SSPC- SP 10 near white metal blast Eddy Current DFT Gauge non-destructive testing instrument used to measure the Dry Film thickness of a non-conductive film on a non- conductive substrate Non-conductive substrates aluminum, brass, stainless steel Eddy Current DFT Gauge AKA non-ferrous gauge UT Gauge non-destructive testing instrument uses pulse Echo to measure coating thickness on a non-metal substrate Non-metal Substrates plastic, wood, concrete, wall board ASTM D 6132 standard for measuring coating thickness on substrate by ultrasonic thickness gauge NACE standards voluntary standards using consensus procedures localized corrosion more frequently causes the need for unplanned maintenance 40% relative humidity corrosion virtually ceases Anode negative posts Anode the less noble region also where reduction occurs Cathode the more noble region Cathode positive post -0.85 minimum voltage required for cathodic protection Waterjetting standards are intended to be similar to the degree of air blast grades of flash rust light, moderate, and heavy 2 1/2 X maximum operational strength UHP an HP quipment must be rated of a burst strength Low Pressure Water Cleaning Pressures under 5,000 psi High Pressure Water Cleaning Pressures 5,000 - 10,000 psi High Pressure Waterjetting Pressures 10,000 - 20,000 psi Ultra High Pressure Waterjetting Pressures above 30,000 psi ASTM D 4541 test method uses a portable adhesion tester capable of applying a concentric load and counter load to a single surface so coatings with only one side accessed can be tested Acidic ph less than 7 Neutral ph ph is equal to7 Alkaline ph is greater than 7 Life cycle of Coating System (Steel) depends significantly on the quality of the surface preparation NACE Coating Inspector Level 2 - Certified Person is qualified to perform advanced coating inspections using both nondestructive and destructive techniques and instrumentation. Passivation production of a tightly adherent layer formed from the corrosion product Oxidation and Reduction always occur together; there is never just oxidation or just reduction General corrosion relatively uniform loss of material over the entire surface Oil, gas, and water main products that are transported through pipelines Oil, gas, and water 3 main products that are transported through pipelines Gathering pipeline collects raw gas from individual wells and move it to the gas plants where it is processed Midstream pipeline transports the processed gas from gas plants to storage facilities Transmission pipeline transports larger quantities of gas from storage facilities to different markets across the country Distribution pipeline collects the gas from the transmission system so utility companies can distribute the gas to the end users Fusion bonded Epoxy (FBE) has been one of the primary coatings on pipelines for many years, typically green or red Two-Layer Polyethylene (2LPE) most commonly used coating for pipelines 2LPE has a base layer applied directly to the steel substrate; usually black mastic (asphalt and rubber) adhesive 3LPE has a green or red layer of FBE applied directly to the steel as the primer NACE No. 3/ SSPC- SP 6 joint standard for commercial blast Asphalt coatings coatings, surface preparations, and quality control are basically the same as CTE (coal tar enamel) Insulated pipelines pipelines are very easy to identify, simply because of the readily apparent insulation Heat-Shrink Sleeves have a cross-linked polyethylene backing and a heat activated adhesive heat-shrink sleeve visual inspection ensure there is adhesive flow out beyond both edges and there are no cracks or holes heat-shrink sleeve physical inspection ensure there is no entrapped air under Liquid Epoxies look like FBE, are identified by their distinct colors; light blue, green, or gray Hot-applied tape formulated with a pliable coating completely saturated into and bonded on both sides of a high tensile strength fabric Wetting Out pasting a primer over the surface to displace any remaining moisture to ensure proper adhesion Petrolatum (Wax) Tapes composed of a synthetic fabric filled with a petrolatum compound, fillers, and anticorrosion agents Melt sticks heat activated adhesives supplied as rods, used to repair FBE Adhesive Failure ... Paint Inspection Gauge PIG ASTM D 4138 measurement of dry film thickness of protective coating systems by destructive means ASTM D 4138 method A Paint Inspection (Tooke) Gauge ASTM D 4138 method C Saberg Drill ASTM D 4752 test method for measuring MEK resistance of Ethyl Silicate Zinc-Rich primers by solvent rub ASTM D 5402 test method for measuring solvent resistance of organic coatings Tooke Gauge can be used on single or multiple coats on virtually all substrates, cutting tips mounted within body, 50 x's microscope, illumination, and reticle scale Saberg Drill equipped with 50 x's microscope and two hand wheels 1 x cutting tip resolution of reticle equals (1 mil) 2 x cutting tip resolution of reticle equals half a mil (.5) 10 x cutting tip resolution of reticle equals one tenth of a mil (.1) ASTM D 6677 evaluating adhesion with knife ASTM D 3359 standard test method for measuring adhesion by tape test ASTM D 3359 method A X cut ASTM D 3359 method B Cross hatch cutter ASTM D 3363 standard test method for film hardness by pencil test ASTM D 2583 standard test method for indentation hardness of rigid plastics by means of a Barcol Impressor Barcol Impressor can be calibrated in the field, calibration verified with aluminum disk, indicator reads 100 on glass Patina greenish oxide which developes on soft copper Maintenance Coating Operations applying coatings over a substrate that has been installed in its final environment and has been placed in service Curling the expansion, lifting, softening, or other deformation of the existing coating in rejection to the applied coating ASTM D 5064 standard practice for conducting a patch test to assess coating compatibility Feathering technique accomplished repaired areas by working the edges of the area back to achieve a fairly smooth transition from the repair area totge foreground coating Hot Dip Galvanizing coats iron or steel with a thin zinc layer by passing the steel through molten bath 820F-860F molten bath of zinc kettle temperature Thermal Spraying term used for the process of coating metal onto a steel or non-metallic substrate Flame Spraying feeding oxygen and a fuel gas into a torch and injecting powder or wire, agonizing the material onto surface High-Velocity Oxyfuel Spraying coatings are very dense with less than 1% porosity Caustic Cleaning the steel is immersed in caustic solution to remove the dirt, oil, and grease from the surface of the steel Pickling the process where the item being prepared is immersed in a tank filled with either hydrochloric or sulfuric acid, which removes oxides and mill scale Coating Survey done to gather information on the performance of the previously coated protective coatings system Cathodic Disbondment Test are the most common performance test, determine how easily a coating loosens from a substrate, or develop holidays as a result of normal soil potentials ASTM Standard G 8 standard test method for cathodic disbanding of pipeline coating Gas Liquid Chromarograph (GLC) can also identify and quantify solvent retaining coating feels Non-convertible no chemical change during the cure cycle Convertible some chemical change during the cure cycle Chlorinated Rubber single package coating, commonly use because of their excellent petro- chemical, water, and UV resistance Vinyl Coatings commonly used in water tanks and as interior linings in water pipes Acrylic Coatings resin are commonly blended with other resins because of their excellent resistance to UV degradation Bituminous Coatings are normally shop apply both hot-melt and cold-applied Polyester/ Vinylester Coatings used in special situation with a chemical or abrasion-resistant coating is required Delamination due to application after the overcoat window Blushing can be caused by moisture on the surface during the cure Air Turns is the ratio of the volume of air flowing through a space in a certain period of time Galvanic Corrosion is the electrochemical action o two dissimilar metals in contact with the presence of an electrolyte, the more reacted metal corrodes to protect the more noble know Cathodic Protection reduces or eliminates corrosion by turning the protected structure into a cathode by either an impressed current or an attachment to a galvanic anode Dehumidification remove moisture vapor from the air to lower its dew point Desiccants are substances that naturally have a high affinity for water, so high that they draw moisture directly from the surrounding environment. they absorb Silica Gel become saturated with adsorbent moisture, the