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BGas Instruction

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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


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