bgas instruction
TRANSCRIPT
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PAINT FAULTS, BITTINESS
INCLUSIONS, EITHERAIRBORN OR FROM
THE PAINT ITSELF.COULD BE PARTIALLYCURED PAINT, OUTOF SHELF LIFE.
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COATING FAULTS BLEEDINGTHE SOLVENT FROMTHE TOP COATSOFTENS THE UNDER
LYING MATERIALAND ALLOWS IT TOPASS INTO ANDTHROUGH THELAYER, CAUSINGDISCOLOURATION.BROWN FORBITUMEN, YELLOWFOR COAL TARS.
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COATING FAULTS BLISTERINGBLISTERS CAN BE FILLED WITH GAS,LIQUID OR
CRYSTALS
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COATING FAULTS CHALKING
DEGRADATION OF A
BINDER DUE TODISRUPTIVE FACTORSIN THE ENVIRONMENT
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COATING FAULTS CISSING
CAUSED BY
INADEQUATESURFACEPREPARATION.
A DIFFERENCE INSURFACE ENERGYCAUSES LOCAL LACK OFADHESION.
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COATING FAULTS CRACKING
COATING AGE ANDDIFFERENTIAL
EXPANSION
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COATING FAULTS CRATERING
BOWL SHAPEDDEPRESSIONS. CAUSED
BY ESCAPING SOLVENTOR GASES. PAINT IS OFTOO LOW A VISCOSITYTO FLOW AND FILL THEDEPRESSIONS
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COATING FAULTS CURTAINS, SAGS, RUNS AND TEARS
CAUSED BY OVERAPPLICATION. REMOVEOFFENDING EXCESS
MATERIAL, LIGHTLYABRADE, RECOAT.
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COATING FAULTS FLAKING
MATERIALPROGRESSIVELYGETS BRITTLE WITH
AGE, CRACKS ANDBEGINS TO DETACH
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COATING FAULTS HOLIDAYS
DEFINED AS BEING :-
A VOID, A MISS, ORAN UNCOATED AREA
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COATING FAULTS LIFTINGCAUSED BY SOLVENT STRENGTH AND ALSO LACK OF
OBSERVANCE OF STATED OVERCOATING TIME
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COATING FAULTS ORANGE PEEL
SIMILAR APPEARANCE TO A
CITRUS FRUIT SKIN
CAUSED BY PAINT VISCOSITY PROBLEMS OR BY
APPLICATOR TECHNIQUE
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COATING FAULTS ROPINESS
BRUSHMARKS
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COATING FAULTS WRINKLING ANDRIVELLING
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COLOUR MUNSELL AND BS 4800L= LUMINANCE, CHROMAa= FROM GREEN TO RED
b= FROM BLUE TO YELLOW
YELLOW THROUGH GREEN ,BLUE
PURPLE, RED AND BACK TO YELLOW
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HEALTH AND SAFETY DRAGER TUBE AND BELLOWS
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RUST GRADES
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RUST GRADES
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BLASTING GRADES A Sa 2.5 and Sa 3
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BLASTING GRADES B Sa 1 and Sa 2
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BLASTING GRADES B Sa 2.5 and Sa 3
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BLASTING GRADES, COMPARISONS
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BLASTING GRADES C Sa 1 and Sa 2
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BLASTING GRADES C Sa 2.5 and Sa 3
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BLASTING GRADES D Sa 1 and Sa 2
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BLASTING GRADES D Sa 2.5 and Sa 3
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DRY ABRASIVE BLASTINGMEASURING PRESSURE AT THE NOZZLE
HYPODERMIC NEEDLE
GAUGE
INSERT THE NEEDLETHROUGH THE HOSEWITH THE NEEDLE
TOWARDS THE NOZZLE,AT AN ANGLE OF APP.
45 DEGREES
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SURFACE PREPARATION
HAND AND POWER TOOL CLEANING B St 2 and St 3
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SURFACE PREPARATION
HAND AND POWER TOOL CLEANING C St 2 and St 3
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SURFACE PREPARATION
HAND AND POWER TOOL CLEANING D St 2 and St 3
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FLAME CLEANING
1, EXPANSION, co-efficient of expansion
2, DEHYDRATION, water evaporated away
3, HEAT PENETRATION, heat conducted into substrate
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SURFACE PREPARATION FLAME CLEANING
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PAINT TESTINGDENSITY THE DENSITY ( SG ) CUP
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PAINT TESTINGHEGMAN GRIND GAUGE
FOR FINENESS OF GRIND, DEGREE OF DISPERSION
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PAINT TESTING, VISCOSITY
ROTATIONAL VISCOMETERWITH ROTOTHINNERMEASURES DYNAMIC
VISCOSITY. UNITS, POISES
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PAINT TESTING. VISCOSITY
KREBS STORMER VISCOMETER
KINEMATIC VISCOSITY
DRIVEN BY A FALLING
WEIGHT, THE HEAVIER
THE WEIGHT THE
FASTER IT ROTATES.CRITERIA 200 RPM
UNITS STOKE OR POISE
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PAINT TESTING
FLOW VISCOSITY
A FORD FLOW CUP
FORD FLOW CUP IN ITS
RETORT AND SHOWINGTHE 4mm DIA HOLE
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PAINT TESTING VISCOSITY. FORD FLOW CUP
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PAINT FILM MEASUREMENT, WET FILMECCENTRIC WHEEL
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WET FILM THICKNESS MEASUREMENT
COMB GAUGES
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DESTRUCTIVE TEST GAUGES. THE SABERG TEST DRILL
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DFT MEASUREMENTS ELECTRONIC GAUGES
ELECTROPHYSIC
MINI TEST THE EXACTO
ELCOMETER
456
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DRY FILM THICKNESS MEASUREMENT, MAGNETIC.THE TINSLEY PENCIL
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DRY FILM THICKNESS MEASUREMENT, MAGNETIC,HORSESHOE GAUGE
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DRY FILM THICKNESS MEASUREMENT, MAGNETIC,
THE BANANA GAUGE MODEL 111
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DRY FILM THICKNESS MEASUREMENTS, MAGNETIC
THE BANANA GAUGE MODEL 211
SCALE MOVESTO THECURSER
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HEALTH AND SAFETY, COSHH REGULATIONSABBREVIATIONS
EH 40,GUIDANCE NOTES, HEALTH AND SAFETY EXECUTIVE
MEL, MAXIMUM EXPOSURE LIMIT
OEL,OCCUPATIONAL EXPOSURE LIMIT
OES,OCCUPATIONAL EXPOSURE STANDARD
LEL,LOWER EXPLOSIVE LIMIT
UEL,UPPER EXPLOSIVE LIMITRAQ,REQUIRED AIR QUANTITY
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DRY FILM THICKNESS MEASUREMENT
COLOUR CODED CALIBRATION SHIMS
PURPLE 25um
BLUE 50um
BROWN 125um
WHITE 250um
YELLOW 500um
nominal values
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FLEXIBILITY TEST CONICAL MANDREL