1、Designation: C 1376 03Standard Specification forPyrolytic and Vacuum Deposition Coatings on Flat Glass1This standard is issued under the fixed designation C 1376; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last rev
2、ision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers the optical and aesthetic qual-ity requirements for coatings applied to glass for use inbuilding gl
3、azing.1.2 The coatings covered are applied to the glass usingeither pyrolytic or vacuum (sputtering) deposition methods andare typically applied to control solar heat gain, energy perfor-mance, comfort level, and condensation and enhance theaesthetic of the building.1.3 This specification addresses
4、blemishes related to thecoating only. It does not address glass blemishes, appliedceramic frits, and organic films.1.4 Dimensional values are stated in inch pound units andare to be regarded as the standard units for this specification.The metric units given in parentheses are for information only.2
5、. Referenced Documents2.1 Reference to these documents shall be the latest issueunless otherwise specified by the authority applying thisspecification.2.2 ASTM Standards:C 162 Terminology of Glass and Glass Products2C 1036 Specification for Flat Glass2C 1048 Specification for Heat-Treated Flat Glass
6、KindHS, Kind FT Coated and Uncoated Glass2D 2244 Test Method for Calculation of Color Differencesfrom Instrumentally Measured Color Coordinates33. Terminology3.1 DefinitionsRefer to Terminology C 162, SpecificationC 1036 or Specification C 1048 as appropriate:3.1.1 blemishes in flat glassrefer to Sp
7、ecifications C 1036or C 1048, as appropriate.NOTE 1These definitions do not apply to in-service damage.3.2 Definitions of Terms Specific to This Standard:3.2.1 coated overhead glassglass used in an installation inwhich the lower edge of the glass is more than 6 ft (1.8 m)above (the viewers) floor le
8、vel or cannot be approached within10 ft (3.0 m); the glass can usually but not always be viewedin both transmission and reflection; the glass is usually slopingin from the vertical plane, however, may also be vertical orsloping out from the vertical plane.NOTE 2The following terms are designed to gu
9、ide the user to theappropriate inspection charts and requirements.3.2.2 coated spandrel glassglass used in an installation inwhich the glass is only viewed in reflection from the buildingsexterior. The glass is usually installed vertically, however, maybe at a slope to the vertical plane.3.2.3 coate
10、d vision glassglass used in an installation inwhich the lower edge of the glass is a maximum of 6 ft (1.8 m)above (the viewers) floor level; the glass can be viewed intransmission or reflection; the glass is usually vertical, how-ever, may also be sloping in or out from the vertical plane; andthe gl
11、ass can be approached within 10 ft (3.0 m) or less. (If thedistance is greater than 10 ft (3.0 m), see coated overheadglass.)3.2.4 coating ruba surface abrasion of appreciable widththat has partial, or complete, removal of the coating producinga hazy appearance.3.2.5 coating scratchpartial, or compl
12、ete, removal of thecoating along a thin straight or curved line.3.2.6 corrosionchange in the color or level of reflected ortransmitted light over all or part of the glass surface as a resultof degradation of the coating from external sources.3.2.7 crazinga random conglomeration of fine lines orcrack
13、s in the coating.3.2.8 cut sizeflat glass sheets cut to specific dimensions.3.2.9 mark/contaminanta deposit of foreign material onthe glass surface.3.2.10 nonuniformityobvious variation in reflected colorof the coating within a lite of glass or between two lites ofcoated glass in the same building o
14、r both.3.2.10.1 bandingwide or narrow areas of nonuniformitywith demarcation that appears as a linear line and may occuranywhere on a lite.3.2.10.2 edge to edgegradient nonuniformity within a liteof glass.1This specification is under the jurisdiction of ASTM Committee C14 on Glassand Glass Products
15、and is the direct responsibility of Subcommittee C14.08 on FlatGlass.Current edition approved April 10, 2003. Published May 2003. Orginallyapproved in 1997. Last previous edition approved in 1997 as C137697.2Annual Book of ASTM Standards, Vol 15.02.3Annual Book of ASTM Standards, Vol 06.01.1Copyrigh
16、t ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.3.2.10.3 lite to litenonuniformity between individuallites.3.2.10.4 mottlingsplotchy or patchy nonuniformity (not tobe confused with strain pattern inherent to heat-treated glass orin-service st
17、aining, or both, or damage of glass).3.2.10.5 picture framingperimeter nonuniformity.3.2.11 pinholesmall area in which the coating is entirelyor partially absent.3.2.12 pyrolyticterm used to describe a method of manu-facture of a coating. Process applies the coating to hot glass,usually at the time
18、of flat glass manufacturing.3.2.13 spota small, opaque blemish in the coating.3.2.14 stock sizeflat glass sheets cut to standard dimen-sions that will be cut to smaller sizes in future use.3.2.15 vacuum depositionterm used to describe a methodof manufacture of a coating. The process applies the coat
19、ing ina vacuum chamber to flat glass.3.2.16 vacuum sputteringsee vacuum deposition.4. Significance and Use4.1 This specification groups coated glass according toapplication. These groups are: vision, spandrel/nonvision, andoverhead. Similar but unique quality tolerances and inspectionguidelines have
20、 been outlined for each application. The glass tobe coated shall comply with the applicable provisions ofSpecification C 1036 and Specification C 1048.4.2 Coating blemishes are an inherent part of the glass-coating process. In addition, coatings can be damaged as aresult of improper transportation,
21、storage, handling, fabrica-tion, or installation.4.3 Individual manufacturers should be contacted for rec-ommended handling, fabrication, installation, and applicationguidelines.5. Classification5.1 KindsCoated flat glass furnished under this specifica-tion shall be of the following kinds, as specif
22、ied:5.1.1 Kind CVFlat transparent glass conforming to theapplicable requirements of Specification C 1036 or Specifica-tion C 1048 or both and having a coating applied to one ormore of the glass surfaces which further conforms with therequirements hereinafter specified for coated vision glass.5.1.2 K
23、ind COFlat transparent glass conforming to theapplicable requirements of Specification of C 1036 or Specifi-cation C 1048 or both and having a coating applied to one ormore of the glass surfaces which further conforms withrequirements hereinafter specified for coated overhead glass.5.1.3 Kind CSFlat
24、 glass conforming to the applicablerequirements of Specifications of C 1036 or SpecificationC 1048 or both and having a coating applied to one or more ofthe glass surfaces that further conforms with the requirementshereinafter specified for coated spandrel glass.NOTE 3Coated spandrel glass may have
25、additional material designedto opacify the glass that is not included in the scope of this specification.6. Requirements6.1 Blemishes for Coated Vision GlassThe type andnumber of blemishes shall be no greater than those specified inTable 1.6.2 Blemishes for Coated Overhead GlassThe type andnumber of
26、 blemishes shall be no greater than those specified inTable 2.6.3 Blemishes for Coated Spandrel GlassThe type andnumber of blemishes shall be no greater than those specified inTable 3.6.4 Nonuniformity for Coated GlassThe phenomenon ofnonuniformity in coated glass may be visible within anindividual
27、lite, or between lites of glass, in a particular buildingor curtain wall. Consultation with suppliers and viewing fullTABLE 1 Quality Specifications for Cut Size Coated Vision Glass(Kind CV)ABlemishB,CCentral Area, in. (mm)DOuter Area, in. (mm)DPinhole116(1.6) max332(2.4) maxSpot116(1.6) max332(2.4)
28、 maxCoating scratch 2 (50) max length 3 (75) max lengthMark/contaminant 2 (50) max length 3 (75) max lengthCoating rub none allowed length plus width not toexceed34 (19)Crazing none allowed none allowedCorrosion none allowed none allowedAThese specifications apply to cut size glass only. For specifi
29、cations of stocksize glass contact the manufacturer.BThe glass shall be inspected, in transmission, at a distance of 10 ft (3.0 m) ata viewing angle of 90 to the specimen against a bright uniform background. If ablemish is readily apparent under these viewing conditions, the above criteriaapplies.CN
30、o more than two readily apparent blemishes are allowed in a 3-in. (75-mm)diameter circle, and no more than five readily apparent blemishes are allowed ina 12-in. (300-mm) diameter circle.DThe central area is considered to form a square or rectangle defined by thecenter 80 % of the length and 80 % of
31、 the width dimensions centered on a lite ofglass. The remaining area is considered the outer area.TABLE 2 Quality Specifications for Cut Size Coated OverheadGlass (Kind CO)ABlemishB,CCentral Area, in. (mm)DOuter Area, in. (mm)DPinhole332(2.4) max18(3.2) maxSpot332(2.4) max18(3.2) maxCoating scratch
32、3 (75) max length 4 (100) max lengthMark/contaminant 3 (75) max length 4 (100) max lengthCoating rub length plus width not toexceed34 (19)Length plus width not toexceed34 (19)Crazing none allowed none allowedCorrosion none allowed none allowedAThese specifications apply to cut size glass only. For s
33、pecifications of stocksize glass contact the manufacturer.BThe glass shall be inspected, in transmission, at a distance of 15 ft (4.6 m) ata viewing angle of 90 to the specimen against a bright uniform background. If ablemish is readily apparent under these viewing conditions, the above criteriaappl
34、ies.CNo more than two readily apparent blemishes are allowed in a 3-in. (75-mm)diameter circle, and no more than five readily apparent blemishes are allowed ina 12-in. (300-mm) diameter circle.DThe central area is considered to form a square or rectangle defined by thecenter 80 % of the length and 8
35、0 % of the width dimensions centered on a lite ofglass. The remaining area is considered the outer area.C1376032size mock-ups under typical site conditions and surroundinglandscape is highly recommended before construction.6.4.1 The scientific nature of controlling gas flow, electricalcharges, and c
36、oating layer densities require production toler-ances for light transmittance, reflectance, and color of coatedglass products. Glass within allowable production tolerancesmay yield differences in reflected color or intensity of lighttransmittance or reflectance or both. Perceivable differencesare no
37、t immediate cause for rejection.6.4.2 Glass should be viewed as installed and from theexterior of the building for uniformity comparison. Coatingnonuniformity may occur from lite to lite in a building. It mayalso occur within a lite in the form of edge-to-edge gradation,banding, mottling, or picture
38、 framing.6.4.3 Nonuniformity is defined using a DE*ab as defined inTest Method D 2244 for CIE 1976 L*A*B*, Illuminant D65,and 10 Observer. Using a reference target established by themanufacturer, or the average color readings as defined below,no color readings should exceed a DE*ab of 4.5. To calcul
39、ateDE*ab, the following procedure should be used: Using amobile/handheld spectrophotometer, color readings will betaken and documented from a predetermined number of unitsthat have been installed on a building. A minimum of tenreadings should be taken and should include any glass that is inquestion.
40、 The readings taken should then be averaged and thataverage will be used as a target for calculating the DE*ab.Using the average color reading as a target, no color readingsshould exceed a DE*ab of 4.5.NOTE 4Design professionals and building owners should be awarethat certain coated glass products w
41、ill yield color differences when used inadjacent vision and spandrel area conditions and when used in laminatedglass constructions or on different glass thickness.NOTE 5Refer to manufacturer for blemishes not listed in this speci-fication.7. Keywords7.1 coated glass; flat glass; glazing; nonuniformi
42、ty; over-head glass; pyrolytic coating; spandrel glass; sputtered coat-ings; vacuum deposition coating; vision glassASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly a
43、dvised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, eith
44、er reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend.
45、 If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Indi
46、vidual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).TABLE 3 Quality Specifications for Cut Size Coated SpandrelGlass
47、(Kind CS)ABlemishB,CRange Number 1,in. (mm)DRange Number 2,in. (mm)DPinhole18(3.2) max532(4.0) maxSpot18(3.2) max532(4.0) maxCoating scratch 3 (75) max length 6 (150) max lengthMark/contaminant 3 (75) max length 6 (150) max lengthCoating rub none allowed length plus width not toexceed34(19)Crazing n
48、one allowed none allowedCorrosion none allowed none allowedAThese specifications apply to cut size glass only. For specifications of stocksize glass contact the manufacturer.BThe glass shall be inspected, in reflection, at a distance equal to or greater than15 ft (4.6 m) at a viewing angle of 90 to
49、the specimen under uniform lightingconditions. If a blemish is readily apparent under these viewing conditions, theabove criteria applies.CNo more than two readily apparent blemishes are allowed in a 3 in. (75-mm)diameter circle and no more than five readily apparent blemishes are allowed in a12 in. (300-mm) diameter circle.DThe specifications separates glass by the distance that it will be viewed wheninstalled. Range No. 1 is for all glass within a viewing distance of 15 ft (4.6 m) orless, and Range No. 2 is all glass viewed f
