1、Designation: E2072 10An American National StandardStandard Specification forPhotoluminescent (Phosphorescent) Safety Markings1This standard is issued under the fixed designation E2072; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision
2、, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1. Scope1.1 This specification cove
3、rs minimum photometric require-ments for newly applied photoluminescent (phosphorescent)safety materials used to provide supplemental markings ofescape routes, emergency equipment, and obstructions alongthe escape route. (see also Test Method E2073 and GuideE2030).1.2 This specification establishes
4、minimum luminance val-ues for photoluminescent (phosphorescent) markings.1.3 This specification applies to all types of photolumines-cent (phosphorescent) markings, including but not limited toplastics, coatings, ceramics, films, etc.1.4 This specification does not cover potentially diminishedperfor
5、mance due to wear and tear and aging.1.5 This specification applies only to photoluminescent(phosphorescent) markings emitting the majority of spectralenergy within the 515 to 535 nanometer range.1.6 When reference is made regarding photoluminescencein the text of this standard, it implies phosphore
6、scence.1.7 The values stated in inch-pound units are to be regardedas standard. The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.2. Referenced Documents2.1 ASTM Standards:2E284 Terminology of AppearanceE1316
7、 Terminology for Nondestructive ExaminationsE2030 Guide for Recommended Uses of Photoluminescent(Phosphorescent) Safety MarkingsE2073 Test Method for Photopic Luminance of Photolumi-nescent (Phosphorescent) Markings3. Terminology3.1 Definitions of terms in Terminology E284 and Termi-nology E1316 are
8、 applicable to this specification.4. Performance Requirements4.1 Optical Requirements:4.1.1 Luminance in a Test LaboratoryThe photopic lumi-nance of all three specimens of the photoluminescent marking,measured in compliance with Test Method E2073, shall be notless than: 20.0 mcd/m2at 10 min after ac
9、tivation has ceased;and 2.8 mcd/m2at 60 min after activation has ceased.5. Installation Site5.1 On-Site LuminanceThe photopic luminance of on-siteinstalled photoluminescent markings shall be measured incompliance with Test Method E2073. The on-site lighting shallbe used as activation. Markings must
10、be a minimum of 1-in.(25.4-mm) width. For markings of width W, the requiredphotopic luminance shall, at all times, be not less than:1500/W mcd/m2at 10 min after activation has ceased220/W mcd/m2at 60 min after activation has ceasedFor this calculation, the width W is measured in millimetres.Examples
11、 of Required Luminance ValuesWidth of Marking 10 min afteractivation has ceased60 min afteractivation has ceasedMinimum 25.4mm 59.06 mcd/m28.66 mcd/m240mm 37.50 mcd/m25.50 mcd/m275mm 20.00 mcd/m22.93 mcd/m2100mm 15.00 mcd/m22.20 mcd/m25.2 ActivationThe required recharging activation level forphotolu
12、minescent safety markings depends on the ambientluminance level, the type of light source utilized, and theduration of exposure to the activating light source. Consultmanufacturers for performance levels under various lightingconditions.6. Keywords6.1 escape routes; luminance; photoluminescent safet
13、ymarkings1This specification is under the jurisdiction of ASTM Committee E12 on Colorand Appearance and is the direct responsibility of Subcommittee E12.13 onPhotoluminescent Safety Markings.Current edition approved March 1, 2010. Published March 2010. Originallyapproved in 2000. Last previous editi
14、on approved in 2009 as E2072 09a. DOI:101520/E2072-10.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.1Copyri
15、ght ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.APPENDIXES(Nonmandatory Information)X1. CODE COMPLIANCEX1.1 When this standard is used to show compliance withcodes or standards, the manufacturer should have an agreementwith an organization
16、that is acceptable to the Authority HavingJurisdiction for follow-up factory inspection services.X2. LUMINANCE COMPARISON FOLLOWING DIFFERENT ILLUMINATION CONDITIONSX2.1 In 5.1, On-Site Luminance, Specification E2072requires luminance values at 10 and 60 min. after on-siteactivation has ceased. Thes
17、e values are to be measured at theinstallation site, following Test Method E2073.X2.2 Accomplishing the required luminance values de-pends on a variety of factors, including but not limited to, thetype of activating light source, the intensity of illumination(lx/fc) on the marking surface, the color
18、 temperature ofillumination (K, Kelvin), the length of illumination and theambient temperature, to mention a few factors.X2.3 How different the luminance results may be, depend-ing on changing illumination conditions, is shown in TableX2.1. The luminance values in the table are averages forrandomly
19、selected products. Results will vary for othersamples and other activation conditions.TABLE X2.1 Influence of Different Illumination Conditions on the LuminanceActivation ConditionsXenon1000 lx (92.9 fc);5 min;approx. 6500 KFluorescent21.6lx(2fc);120 min;4000 K 4500 KFluorescent10.8lx(1fc);60 min;40
20、00 K 4500 KFollowingActivationLuminance in mcd/m2Sample A 10 min 604.0 77.1 29.360 min 88.3 25.1 9.790 min 55.0 17.7 6.9Sample B 10 min 194.7 37.9 17.260 min 26.6 9.8 4.890 min 16.3 6.6 3.2Sample C 10 min 43.3 14.4 8.260 min 6.0 3.2 2.090 min 3.7 2.1 1.4Sample D 10 min 53.6 15.7 8.560 min 7.1 3.7 2.
21、190 min 4.3 2.4 1.4Sample E10 min 284.5 62.2 29.360 min 37.2 15.5 8.390 min 22.3 10.8 5.5Sample F 10 min 137.7 40.8 22.560 min 19.1 9.4 5.490 min 11.9 6.5 3.7Sample G 10 min 168.7 53.0 29.960 min 24.7 12.4 7.390 min 15.3 8.1 4.9Note: Testing was performed by one laboratory. This laboratory measured
22、each sample thrice with the 3 different activation conditions. The 3 results obtained peractivation condition were added, then divided by 3 and the resulting average is given above.E2072 102ASTM International takes no position respecting the validity of any patent rights asserted in connection with
23、any item mentionedin this standard. Users of this standard are expressly advised 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 technic
24、al committee and must be reviewed every five years andif not revised, either 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
25、 at a meeting of theresponsible technical committee, which you may attend. 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 Harbo
26、r Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual 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). Permission rights to photocopy the standard may also be secured from the ASTM website (www.astm.org/COPYRIGHT/).E2072 103
