1、May 2014 Translation by DIN-Sprachendienst.English price group 11No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 37
2、.020!%1M“2149542www.din.deDDIN ISO 9211-4Optics and photonics Optical coatings Part 4: Specific test methods (ISO 9211-4:2012),English translation of DIN ISO 9211-4:2014-05Optik und Photonik Optische Schichten Teil 4: Spezifische Prfmethoden (ISO 9211-4:2012),Englische bersetzung von DIN ISO 9211-4:
3、2014-05Optique et photonique Traitements optiques Partie 4: Mthodes dessai spcifiques (ISO 9211-4:2012),Traduction anglaise de DIN ISO 9211-4:2014-05SupersedesDIN ISO 9211-4:2008-06www.beuth.deDocument comprises 18 pagesIn case of doubt, the German-language original shall be considered authoritative
4、.05.14 Contents PageNationalf oreword 31 Scope . 52 Normative references 53 Terms and definitions . 54 Test conditioning 55 Abrasion resistance tests (conditioning method 01: abrasion) 55.1 General . 55.2 Test conditions 65.3 Degree of severity (conditioning method 01: abrasion) . 65.4 Recovery . 65
5、.5 Evaluation 66 Adhesion tests (conditioning method 02: adhesion) . 76.1 General . 76.2 Test conditions 76.3 Degree of severity (conditioning method 02: adhesion) 76.4 Recovery . 76.5 Evaluation 77 Crosshatch test (conditioning method 03: crosshatch) . 87.1 General . 87.2 Test conditions 87.3 Condi
6、tioning 87.4 Recovery . 87.5 Evaluation 88 Solubility tests (conditioning method 04: solubility) 98.1 General . 98.2 Test conditions 98.3 Degree of severity (conditioning method 04: solubility) 108.4 Recovery 108.5 Evaluation . 109 Environmental test code 11Annex A (normative) Materials for abrasion
7、 testing of optical coatings . 12Annex B (normative) Cheesecloth pad, pad cover and fixture preparation for moderate abrasion testing of optical coatings 15Annex C (normative) Visual examination of optical coatings 17Bibliography .18A comma is used as the decimal marker. DIN ISO 9211-4:2014-05 2fNat
8、ional Annex NA (informative) Bibliography .4National foreword This standard (ISO 9211-4:2012) has been prepared by Technical Committee ISO/TC 172 “Optics and photonics”, Subcommittee SC 3 “Optical materials and components” (Secretariat: JISC, Japan). The responsible German body involved in its prepa
9、ration was the Normenausschuss Feinmechanik und Optik (Optics and Precision Mechanics Standards Committee), Working Committee NA 027-01-03 AA Dnne Schichten fr die Optik. NOTE Annex A, A.1.1 and A.1.2: The English word “yarn” is very general and there are many ways to translate this into German. Dep
10、ending on context, “yarn” has been translated in the German version of this standard as Garn, Kettfaden, Schussfaden or Faden. DIN ISO 9211 consists of the following parts, under the general title Optics and photonics Optical coatings: Part 1: Definitions Part 2: Optical properties Part 3: Environme
11、ntal durability Part 4: Specific test methods Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. DIN and/or DKE shall not be held responsible for identifying any or all such patent rights. The DIN Standards corresponding to the Inter
12、national Standards referred to in this document are as follows: ISO 48 DIN ISO 48 ISO 9211-1 DIN ISO 9211-1 ISO 14997 DIN ISO 14997 ISO 9211-3 DIN ISO 9211-3 Amendments This standard differs from DIN ISO 9211-4:2008-06 as follows: a) the test cycle speed has been specified, see Subclause 5.2.1; b) a
13、 multiplier has been added to allow for higher degrees of severity, see Subclause 5.3; c) for the sake of legibility, Table 4 has been rearranged without any modification to the content; d) Annex A has been extended to include A.2.6 “Storage”. Previous editions DIN 58196-1; 1974-09, 1980-09, 1996-07
14、 DIN 58196-2: 1974-09, 1980-11, 1996-07 DIN 58196-4: 1996-07 DIN 58196-5: 1995-07 DIN 58196-6: 1995-07 DIN ISO 9211-4: 2008-06 DIN ISO 9211-4:2014-05 3National Annex NA (informative) Bibliography DIN ISO 48, Rubber, vulcanized or thermoplastic Determination of hardness (hardness between 10 IRHD and
15、100 IRHD) DIN ISO 9211-1, Optics and photonics Optical coatings Part 1: Definitions DIN ISO 9211-3, Optics and photonics Optical coatings Part 3: Environmental durability DIN ISO 14997, Optics and photonics Test methods for surface imperfections of optical elements DIN ISO 9211-4:2014-05 4Optics and
16、 photonics Optical coatings Part 4: Specific test methods1 ScopeISO 9211 describes surface treatments of components and substrates, excluding ophthalmic optics (spectacles), by the application of optical coatings and gives a standard form for their specification. It defines the general characteristi
17、cs and the test and measurement methods wherever necessary, but it is not intended to define the process method.This part of ISO 9211 describes specific test procedures for coating environmental durability tests that are identified in ISO 9211-3 but not described in other normative references. They
18、are typically performed in sequence with other environmental durability tests, as shown in ISO 9211-3:2008, Annex A.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only th
19、e edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 48, Rubber, vulcanized or thermoplastic Determination of hardness (hardness between 10 IRHD and 100 IRHD).ISO 9211-1, Optics and photonics Optical coatings Part 1: De
20、finitionsISO 29862, Self adhesive tapes Determination of peel adhesion properties3 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO 9211-1 apply.4 Test conditioningBefore and after subjecting a coated specimen (component or witness sample) to any inspect
21、ion or test, the specimen shall be thoroughly cleaned as required to remove dirt, finger marks, smears, etc. Recommended storage time is at least 12 h after the coating process under ambient atmospheric conditions, or as specified between manufacturer and buyer.5 Abrasion resistance tests (condition
22、ing method 01: abrasion)5.1 GeneralThe purpose of these tests is to evaluate to what extent the optical and mechanical properties of optical coatings on components and substrates are affected when subjected to specific abrading conditions at ambient atmospheric conditions.DIN ISO 9211-4:2014-05 55.2
23、 Test conditions5.2.1 GeneralAbrasion tests shall be conducted using a coating abrasion tester capable of meeting the requirements of 5.2 and 5.3. The length of stroke of the tester shall be approximately 20 mm when the dimensions of the specimen permit. A stroke is defined as one pass in one direct
24、ion on the surface being tested. The tester shall be operated in a cycling mode. A cycle is defined as one stroke in one direction, followed by a return stroke in the opposite direction. The cycle speed shall be in the range of 30 to 90 cycles per minute. The head of the tester shall be approximatel
25、y normal to the surface under test during the rubbing operation. The specimen shall be firmly held so that it does not slide during the test.5.2.2 Moderate abrasion testThe rubbing head of the abrasion tester shall be covered with a pad of cotton cheesecloth conforming to A.1, approximately 5 mm thi
26、ck and 10 mm wide. Instructions for preparing the cheesecloth pad, cover and fixture are provided in Annex B.5.2.3 Severe abrasion testThe rubbing head of the abrasion tester shall be affixed with a standard eraser, conforming to A.2. The eraser shall be inserted into the holder so that the exposed
27、length does not exceed 3 mm.It is permissible to clean the eraser with a clean towel but solvents should not be used. Also, the eraser may be conditioned by rubbing it across a clean, smooth or frosted glass surface to wear away some of the rubber if embedded foreign material is suspected.5.3 Degree
28、 of severity (conditioning method 01: abrasion)The degrees of severity for conditioning method 01 are given in Table 1.Table 1 Degrees of severity for conditioning method 01: abrasionDegree of severity 01 02 03 04Abrader Cheesecloth Cheesecloth Eraser EraserNumber of strokes 50 100 20 40Force 5 N 1
29、N 5 N 1 N 10 N 1 N 10 N 1 NA requirement for a greater number of strokes shall be indicated by adding a multiplier to the degree of severity. For example, a requirement for 150 cheesecloth rubs would be indicated as “degree of severity 01 x 3”; a requirement for 100 eraser rubs would be indicated as
30、 “degree of severity 03 x 5”.5.4 RecoverySubsequent to the rubbing operation the specimen shall be cleaned as described in Clause 4.5.5 EvaluationThe film on the specimen shall be visually examined in reflected and/or transmitted light, with the unaided eye, for evidence of physical damage to the co
31、ating. The examination shall be performed using the method specified in Annex C, or that given in ISO 14997, or as agreed between the supplier and the user. The method used shall be stated. The coating shall not show any evidence of damage, such as abrasion or coating removal. If slight sleeking or
32、scratching is visible and the cheesecloth or eraser and/or coating is suspected of having foreign material embedded in it, another area of the surface shall be retested using a fresh cheesecloth pad or eraser.DIN ISO 9211-4:2014-05 66 Adhesion tests (conditioning method 02: adhesion)6.1 GeneralThe p
33、urpose of these tests is to evaluate to what extent the mechanical properties of optical coatings on components and substrates are affected when subjected to specific tensile or shear stress conditions at ambient atmospheric conditions.6.2 Test conditions6.2.1 The adhesive tape used for this test sh
34、all be clear in colour with an adhesive strength on steel of at least 9,8 N per 25 mm width when tested in accordance with ISO 29862, Method 1, 180 angle of peel. It shall be 12 mm to 13 mm wide. It shall show no evidence of deterioration and shall be capable of being unwound from the roll at a norm
35、al rate of speed without showing evidence of adhesive offsetting, adhesive splitting, or stringing out of adhesive, nor breakage or splitting of the tape backing. The tape shall be free of bare spots or foreign particles or any defect that may affect serviceability or appearance.6.2.2 Apply approxim
36、ately 25 mm of tape to the coated surface when the dimensions of the specimen permit, with sufficient tape remaining to securely grasp with a thumb and finger.6.2.3 Press the tape firmly onto the coated surface. Rub the non-adhesive surface of the tape with a finger to ensure firm contact with the s
37、pecimen and to work out any air bubbles that may be present.6.2.4 Unless otherwise required in the relevant specification, do not apply the tape within 2 mm of any rim of the specimen.6.2.5 Hold the specimen firmly in one hand, and in the other the end of the tape that protrudes beyond the edge of t
38、he test specimen.6.2.6 Remove the tape at an angle perpendicular to the coated surface at one of the rates indicated in Table 2.6.3 Degree of severity (conditioning method 02: adhesion)The degrees of severity for conditioning method 02 are given in Table 2.Table 2 Degrees of severity for conditionin
39、g method 02: adhesionDegree of severity 01 02 03Rate of tape removalSlow (approximately 2 s to 3 s per 25 mm)Quick (approximately 1 s per 25 mm)Snap (much less than 1 s per 25 mm)NOTE The “snap” rate of removal refers to a snapping action of the wrist and fingers.6.4 RecoveryDo not clean the specime
40、n prior to evaluation.6.5 EvaluationThe film on the specimen shall be visually examined in reflected and/or transmitted light, with the unaided eye, for evidence of coating removal. The examination shall be performed using the method specified in Annex C, or that given in ISO 14997, or as agreed bet
41、ween the supplier and the user. The method used shall be stated. The coating shall not show any evidence of coating removal.DIN ISO 9211-4:2014-05 7Unless otherwise required in the relevant specification, visual discolourations of the coating such as stains, smears, streaks or cloudiness shall be ac
42、ceptable if the specimen conforms to the optical and other environmental durability requirements of the relevant specification.7 Crosshatch test (conditioning method 03: crosshatch)7.1 GeneralThe purpose of this test is to evaluate to what extent the adhesion properties of optical coatings on compon
43、ents and substrates are affected after cutting the coating (distorting the stress and influencing the adhesion).7.2 Test conditions7.2.1 Use a cutting device e.g. a razor blade (suitable for soft substrates) or a diamond scribe to make six parallel cuts in the coating, 1,5 mm 0,5 mm apart and approx
44、imately 15 mm to 20 mm in length, when the dimensions of the specimen permit. Cut through the coating completely but do not cut too deep into the substrate. Rotate the sample and in the same way make six parallel cuts perpendicular to the first set of cuts. Check the cut pattern for flakes or other
45、irregularities and record the results.7.2.2 Apply adhesive tape as specified in 6.2.1 over the crosshatch pattern in accordance with 6.2.2 to 6.2.5.7.3 ConditioningRemove the tape at an angle perpendicular to the coated surface at a snap rate (much less than 1 s per 25 mm).7.4 RecoveryDo not clean t
46、he specimen prior to evaluation.7.5 EvaluationRate the crosshatch results according to Table 3. Magnification may be used.DIN ISO 9211-4:2014-05 8Table 3 Rating system for conditioning method 03: crosshatchClassification Picture Description0 The edges of the cuts are completely unchanged; none of th
47、e squares are detached.1Small flakes of the coating are detached at the intersections; less than 5 % of the total area is affected.2Small flakes of the coating are detached along the cuts and the intersections; the area affected is 5 % to 15 % of the total area.3Some parts of the squares are detache
48、d; the area affected is 15 % to 35 % of the total area.4Whole squares are detached; the area affected is 35 % to 65 % of the total area.5 Flaking and detachment worse than classifica-tion 4.8 Solubility tests (conditioning method 04: solubility)8.1 GeneralThe purpose of these tests is to evaluate to what extent the optical and mechanical performance characteristics of optical coatings on components and substrates are affected after immersion in distilled or deionized water or a salt water solution.8.2
