DIN 53380-1-2000 Testing of plastics - Determination of gas transmissionsrate - Part 1 Volumetrical method for testing of plastic films《塑料制品试验 气体传输率的测定 第1部分 塑料薄模试验用容积测量法》.pdf
《DIN 53380-1-2000 Testing of plastics - Determination of gas transmissionsrate - Part 1 Volumetrical method for testing of plastic films《塑料制品试验 气体传输率的测定 第1部分 塑料薄模试验用容积测量法》.pdf》由会员分享,可在线阅读,更多相关《DIN 53380-1-2000 Testing of plastics - Determination of gas transmissionsrate - Part 1 Volumetrical method for testing of plastic films《塑料制品试验 气体传输率的测定 第1部分 塑料薄模试验用容积测量法》.pdf(5页珍藏版)》请在麦多课文档分享上搜索。
1、ICS 83.140.10Prfung von Kunststoffen Bestimmung der Gasdurchlssigkeit Teil 1: Volumetrisches Verfahren zur Messung an Kunststoff-FolienIn keeping with current practice in standards published by the International Organization for Standardization(ISO), a comma has been used throughout as the decimal m
2、arker.ContentsPageForeword . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Normative reference . . . . . . . . .
3、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Concept . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Designation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4、 . . . . . 25 Transmission rate tester . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Apparatus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 Specimens . . . . . . . . . . . . . . . . . . . . . . . .
5、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 Evaluation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 510
6、Test report . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5ForewordThis standard has been prepared by Technical Committee Kunststoff-Folien und kunststoffbeschichteteFlchengebilde (Kunstleder); allgemeine Eigenschaften of the Normenausschuss Ku
7、nststoffe (PlasticsStandards Committee).AmendmentsThis standard differs from DIN 53380, June 1969 edition, as follows:a) The standard consists of several parts.b) More detailed specifications have been included for equipment and procedure.c) The standard has been editorially revised.Previous edition
8、DIN 53380: 1969-06.Ref. No. DIN 53380-1 : 2000-07English price group 05 Sales No. 010507.02DEUTSCHE NORM July 200053380-1Continued on pages 2 to 5. No part of this translation may be reproduced without the prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 B
9、erlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).Determining the gas transmission rate ofplastic film by the volumetric methodTranslation by DIN-Sprachendienst.In case of doubt, the German-language original should be consulted as the authoritative text.Supersedes DIN
10、53380,June 1969 edition.Page 2DIN 53380-1 : 2000-071 ScopeThe method specified in this standard serves to determine the rate of transmission of gas (e.g. O2, CO2, N2,andmixtures thereof) through plastic film and, consequently, the suitability of such film, for example, for packagingdelicate goods. I
11、t cannot be used for gas that tends to condense and to react chemically with the specimenmaterial.The gas transmission rate is measured by determining the volume of gas that migrates through the specimenunder specified conditions, those given in clause 8 being suitable for determining gas transmissi
12、on rates rangingfrom about 3 cm3/(m2. d . bar) to 20000 cm3/(m2. d . bar) (where d is symbol for day). Since the gastransmission rate depends on the thickness of the product, reproducible results can be obtained only withspecimens of equal thickness. For homogeneous materials, the gas transmission r
13、ate is generally inverselyproportional to the thickness.2 Normative referenceThis standard incorporates, by dated or undated reference, provisions from other publications. These normativereferences are cited at the appropriate places in the text, and the titles of the publications are listed below.
14、Fordated references, subsequent amendments to or revisions of any of these publications apply to this standardonly when incorporated in it by amendment or revision. For undated references, the latest edition of thepublication referred to applies.DIN 53370 Determining plastic film and sheeting thickn
15、ess by the stylus method3 ConceptGas transmission rateThe volume of gas that passes through a material per unit time, area and pressure.4 DesignationDesignation of the method of determining the gas transmission rate by the volumetric method (V):Test DIN 53380 V5 Transmission rate tester5.1 GeneralTh
16、e transmission rate tester consists of a two-part stainless steel cell, a measuring capillary with a glasspressure compensating vessel, tightly joined to the cell, and a manifold (see figure 1).5.2 Steel cellThe steel cell consists of the following components.a) The lower part incorporates a steel p
17、late to receive the circular specimen. This plate consists of two areas,viz. an inner circular area, to receive the specimen, roughened by sand-blasting to ensure that the spacingbetween the specimen bottom surface and the metal surface is sufficiently large to allow the gas permeatingthrough the sp
18、ecimen to flow into the capillary and, surrounding the roughened area, a smooth ground andpolished annular zone that is greased during measurement to ensure gastightness.b) The upper part contains the connections for the inlet and outlet of the test gas. The outlet tube isconnected by a hose to a gl
19、ass tip immersed to a depth of a few millimetres in water (the increase in gaspressure above the specimen by a few tenths of a millibar above atmospheric pressure being negligible).c) A rubber gasket is located in a groove in the upper part of the cell and pressed against the smooth groundand polish
20、ed outer zone of the lower part of the cell.d) Hexagon socket screws for joining the two parts of the cell.e) A glass capillary tube, about 1 mm in diameter and about 240 mm long, whose upper end is tightlycemented into the lower part of the cell (thermoplastic cement being suitable for this purpose
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