Guide To Container Inspection

TW1635

BENT ORCROOKEDFINISHA finish whichhas a bent orcrookedappearance.

BLISTERSLarge bubbles inthe glass.

BROKENFINISHA finish whichhas cracks oractual pieces ofglass broken outof it.

BULGEDFINISHA finish which isbulged out ofshape by blowingor mechanicalaction.

CHECKEDFINISHA finish whichhas a lightsurface crack inthe threads or inthe middle offinish.

CHECKSUNDER FINISHSurface crackswhich occur onor near theparting linebetween theneck and thefinish.

CHIPPEDFINISHA finish fromwhich a smallsection is brokenon the top or side.

CORKAGECHECKSA vertical surfacecheck located inthe inside of thefinish.

SADDLEFINISHA gradual slopeor dip in the finishthat has a saddlelike finish.

FINISHDEFECTS

NECKDEFECTS

SHOULDERDEFECTS

BODYDEFECTS

BASEDEFECTS

GENERALDEFECTS

BENT NECKSA neck where thefinish is tilted toone side.

SHOULDERCHECKSSurface crackson the shoulderof the containers.They are usuallywavy inappearance.

BIRD CAGE(BIRD SWING)A string of glassextending acrossthe inside of thecontainer. A birdswing from side-to-side comes from theback side (blanks).From seam to seamfront side.

BULGED SIDESThe sides of acontainer(usually panelshape) which arepushed out.

LETTERCHECKSSmall cracks orfissures whichappear in or runoff lettering orembossing.

STONESSmall pieces ofrefractory orunmelted batchmaterials.

BAFFLEMARKSA seam occurringbetween thebaffle and theblank mold.

OIL MARKSStrings of smallbubbles in thecontainer.

BROKEN WAREWare which iscracked orbroken intopieces.

CRIZZLEDFINISHA finish withmany finesurfacefractures, mainlyacross the top.

SEEDSVery smallbubbles in theglass.

CHOKED NECKOR BORE(NARROWNECK)An obstruction inthe bore of theneck.

SUNKENSHOULDERSA shoulder whichis not fully blownup.

BLACK SPOTSSmall blackspecks in thecontainer.

COLD MOLDSDappled or wavyappearance inthe body of thecontainer.

LOADINGMARKSVertical laps onthe surface of thecontainer, maybe in the body orneck or both.

STUCK GLASSPARTICLESSmall glassparticles stuck tothe inside of thecontainer. Mostcommon in widemouth ware.

BASE CHECKSmall checksthat occur on ornear the roundedpart of thebottom contactsurface.

SEEDSVery smallbubbles in theglass.

DOWN WAREWare that has fallen over and onto the conveyor.

DIRTY ORROUGH FINISHA finish whichhas a scalyappearance andwhich may evenhave black spotson it.

SPLIT FINISHA finish whichhas a crackacross the topsurface–extendsfrom the top ofthe finish downtoward the neck.

DANNY NECKOR TEAR ONNECKA small surfacesection of glasstorn from theneck of the bottle.

THINSHOULDERSA shoulder whichhas a thinsection.

BLANK ANDBLOW MOLDSEAMSRelatively largeseams extendingfrom the shoulder tothe container base.Blank seams tend toveer off from themold seam.

DIRTY WAREWare which hascarbon or dirtydeposits on it.

OIL MARKSStrings of smallbubbles in thecontainer.

SUNKEN SIDESThe side of acontainer (usuallypanel shape) thatis not fully blownup or may havesunk afterrelease from theblow mold.

BASE LEANERA bottom whichhas sagged sothat the containeris unstable whenplaced on a flatsurface.

STONESSmall pieces ofrefractory orunmelted batchmaterials.

HORIZONTALTEARA check or crackorientedhorizontally.

LINE OVERA superfinegroove acrossthe sealingsurface that cancause acontainer leakafter the fillingprocess.

STONESSmall pieces ofrefractory orunmelted batchmaterials.

DIRTY NECKA neck whichhas a dirty orscaly appear-ance.

BLISTERSLarge bubbles inthe glass

DRAG MARKSA series of finevertical laps nearthe shoulder orneck of thecontainer.

PRESSURECHECKSCheckscharacterized bythin, verticalcracks appearingat the seam.

SWAB WAREResidue left onthe containerfrom theIS Machineswabbingprocess.

BASE SPIKESA smallprojection ofglass in thebottom of thecontainer.

STUCK GLASSPARTICLESSmall glassparticles stuck tothe inside of thecontainer. Mostcommon in widemouth ware.

OUT-OF-SHAPEWARE(LEANER)Containers whichare tiled to oneside due tobottom not beinglevel.

NECK RINGSEAMA fin or seam ofglass lying acrossthe top or theside of the finish.

TEAR UNDERFINISHA finish whichhas a smallsurface sectionof glass torn fromunder it.

LONG NECKA neck that hasbeen stretchedlonger thanspecified.

BODY CHECKSA crack orfracture in thebody of thecontainer.

FREAKSA container sobadly formed orsqueezed out ofshape that it canbe seen at almostany distance.

SEEDSVery smallbubbles in theglass.

THIN WAREThin spots in thecontainer, whichare below theminimumacceptable level.

BLACK SPOTSSmall blackspecks in thecontainer.

SWAB WAREResidue left onthe containerfrom theIS Machineswabbingprocess.

OVER-MAXHEIGHTHeight thatexceedsmaximumallowablespecification.

OFFSET FINISHA finish formedout of alignment,either verticallyor horizontally.

UNFILLEDFINISHA finish which isincompletelyfilled, in the top,the bead, or thethread.

PINCHEDNECKA neck which hasbeen pushed orpinched.

BODYDIMENSIONSDimensions outof specificationfor variousdiameters andperpendicularity.

HOT OR PANELCHECKSCracks in thecontainer bodyon the edge orside, deepV-shaped, goingthrough the wall.

SHEAR MARKSA C-shape markin the glass,attributable to theaction of theshears.

WASHBOARDSA series ofhorizontal wavesor folds on theside of thecontainer.

SWUNGBAFFLEThe baffle markhas swung to oneside and is notcentral in thebottom of thecontainer.

STRUCTURALDEFECTSInternal stressesin the containerdue to poorannealing.

OVERPRESSA finish whichhas excessiveglass projectingupward from theinside edge of thefinish.

BRUSH MARKSFine vertical linesin the side orneck of acontainer.

LAP MARKSOR WRINKLESA slight fold onthe surface of theglass–usuallyhorizontal (canalso be found infinish).

SPIKESA smallprojection ofglass in the bodyof the container.

BLISTERSLarge bubbles inthe glass.

STUCK WAREA rough piece ofglass on theoutside of thecontainer.

STUCK GLASSPARTICLESSmall glassparticles stuck tothe inside of thecontainer. Mostcommon in widemouth ware.

DIRTY WAREWare which hascarbon or dirtydeposits on it.

UNDER-MINHEIGHTHeight that isbelow minimumallowablespecification.

UNEVEN ORBADDISTRIBUTIONUneven wallthickness

VERTICALTEARA check or crackorientedvertically.

Consult the Emhart Glass publication "GLASS CONTAINER DEFECTS—Causes and Remedies" for more information on these defects.

HEADQUARTERS: CHAM, SWITZERLAND

Phone: ++41 (41) 749 4200 Fax: ++41 (41) 749 4271

WINDSOR, CT USA* ELMIRA, NY USA* SINGAPORE KAWASAKI, JAPAN

Phone: ++1 (860) 688 8551 Phone: ++1 (607) 734 3671 Phone: ++65 778 1466 Phone: ++81 (44) 222 7371Fax: ++1 (860) 683 7652 Fax: ++1 (607) 734 1245 Fax: ++65 778 9433 Fax:++81 (44) 222 4868

CHAM, SWITZERLAND SUNDSVALL, SWEDEN* NEUSS, GERMANY DEGO (SAVONA), ITALY

Phone: ++41 (41) 749 4200 Phone: ++46 (60) 199 100 Phone: ++49 (2131) 3595 0 Phone: ++39 (019) 51 66 1Fax: ++41 (41) 749 4271 Fax: ++46 (60) 199 261 Fax: ++49 (2131) 3595 125 Fax: ++39 (019) 51 66 302

DONCASTER, UK FRESNES, FRANCE MADRID, SPAIN OWENSVILLE, MO USAPhone: ++44 (1302) 347 700 Phone: ++33 (1) 46 15 55 77 Phone: ++34 (91) 883 6816 Phone: ++1 (573) 437 2132Fax: ++44 (1302) 327 810 Fax: ++33 (1) 46 15 55 81 Fax: ++34 (91) 883 2063 Fax: ++1 (573) 437 3146

* ISO 9001 REGISTERED

Above defects can be inspected by Emhart Powers machinery, manufactured by Emhart Glass. For further information or to order the 40th Anniversary Inspection Poster, please contact your nearest Emhart Glass Representative.

I S O 9 0 0 1 R E G I S T E R E D