JIS-A-6930-1997-R2003-ENG.pdf
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1、JIS JAPANESE INDUSTRIAL STANDARD Translated and Published by Japanese Standards Association Plastic films vapour barrier for residential use ICs 81.140.10; 91.120.10 Descriptors : heat exchangers, thermal design of buildings, dew point, damp- Reference number : JIS A 6930 : 1997 (E) proof materials,
2、 plastics, films (state of matter), housing 7 s Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/12/2007 09:06:16 MDTNo reproduction or networking permitted without license from IHS -,-,- STD-JIS A
3、b930-ENGL 1997 4733b08 0552337 TZL A 6930 :1997 Foreword This translation has been made based on the original Japanese Industrial Standard established by the Minister of International Trade and Industry through deliberations at Japanese Industrial Standards Committee in accordance with the Industria
4、l Standardization Law: Date of Establishment: 1997-12-20 Date of Public Notice in Official Gazette: 1997-12-22 Investigated by: Japanese Industrial Standards Committee Divisional Council on Architecture JIS A 6930:1997, First English edition published in 1998-11 Translated and published by: Japanese
5、 Standards Association 4-1-24, Akasaka, Minato-ku, Tokyo, 107-8440 JAPAN In the event of any doubts arising as to the contents, the original JIS is to be the final authority. O JSA 1998 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any
6、form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. Printed in Japan Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale,
7、 03/12/2007 09:06:16 MDTNo reproduction or networking permitted without license from IHS -,-,- STD-JIS A b730-ENGL 1777 = 9733b08 0552138 Yb8 = JAPANESE INDUSTRIAL STANDARD JIS A 6930 : 1997 Plastic films vapour barrier for residential use 1 Scope This Japanese Industrial Standard specifies the plas
8、tic films to be used when the vapour barrier layer is especially constituted in order to prevent the thermal insulated structure from moisture condensation mainly in the case of a residence with thermal insulated structure. Remarks : The units and numerical values given in in this Standard are based
9、 on the traditional units and are appended for informative reference. 2 Normative references The following standards contain provisions which, through reference in this Standard, constitute provisions of this Standard. For these normative references, only the editions of the year described constitut
10、e the provisions in this Standard, and revised editions and amendments thereafter are not applied. JIS A 1324: 1995 JIS A 6111 : 1996 JIS A 9521 : 1994 JIS K 6783 : 1994 JIS K 7129: 1992 JIS K 7212: 1995 JIS K 8575: 1994 JIS Z 0208 : 1976 JIS Z 8401 : 1961 JIS Z 8703 : 1983 J1S Z 9001 : 1980 Measuri
11、ng method of water vapor permeance for building mate- rials House wrapping sheets Man made mineral wool thermal insulation materials for dwellings Ethylenelvinyl acetate copolymer films for agriculture Testing methods for water vapor transmission rate of plastic film and sheeting (instrument method)
12、 General rules for tests for thermal ageing properties of thermo- plastics in the form of sheet by means of ovens Calcium hydroxide Testing methods for determination of the water vapour trans- mission rate of moisture-proof packaging materials (dish method) Rules for rounding off of numerical values
13、 Standard atmospheric conditions for testing General rules for sampling inspection procedures 3 Type The type of film shall be as follows. 3.1 material shall be in accordance with Table 1. Classification by constitution of material The classification by constitution of Table 1 Classification by cons
14、titution of material Classification Single film Composite film Constitution of material Film composed of a single plastic material such as polyethylene film. Film compounded of a single film with other different single film in quality and/or other plastic material ( different from the film in shape,
15、 Film with a vapour deposit layer of metal, etc. in a part of component layers shall be included. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/12/2007 09:06:16 MDTNo reproduction or networking p
16、ermitted without license from IHS -,-,- 2 A 6930 : 1997 Permeability (vapour resistance) m*s*Pa/ng m*h*mmHg/g Note () Knitted and woven cloth of stretched polyethylene tape, non-woven cloth of Polyethylen split fiber and so on are applicable. Applicable test su bclause 7.3 Class A Class B 82x 144 x
17、IO- 170) min. (300) min. 3.2 Classification by permeability (vapour resistance) The classification by perme- ability (vapour resistance) shall be as follows (refer to Table 2). Residual rate of longitudinal elon- gation at break after heat treated (%) Residual rate of longitudinal elon- gation at br
18、eak after alkali-treated (%) _. Durabi I ity Ig n it ion property a) Class A b) Class B 7.5.1 50 min. 7.5.2 80 min. No ignition 7.6 4 Quality The quality of film shall be in accordance with Table 2. Thickness mm Table 2 Quality 0.05 0.10 0.15 0.20 Item Single film Composite film Tolerance of t h ick
19、ness % Single film Tolerance of average thickness % Composite film 2 18 -t 23 -t 10 I13 Strength (holding strength of bonding needle) 15 1.53) min. 15 1.53) min. N kgf) 7.4.2 a) 7.4.2 b) 5 Appearance and the defects likely to impair performance such as fissure, hole, etc. shall not be allowed. For t
20、he appearance of film, the test shall be carried out according to 7.7 6 Dimension 6.1 Thickness The thickness of film and the tolerance shall conform to Table 3 after being tested according to 7.2. , Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employee
21、s/1111111001, User=Wing, Bernie Not for Resale, 03/12/2007 09:06:16 MDTNo reproduction or networking permitted without license from IHS -,-,- STD-JIS A b930-ENGL 2997 = 4733b08 0552240 5Lb D Dimension mm Tolerance mm Dimension m Tolerance m 3 A 6930 : 1997 1 100 2000 2500 2700 3000 No deviation on t
22、he minus side is permitted. Follow the agreement between the parties concerned. No deviation on the minus side is permitted. 6.2 The dimensions and the tolerance of width and length of film shall be in accordance with Table 4. Only when the special dimensions are required, the dimension of width sha
23、ll be in accordance with the agreement between the parties concerned with delivery. Width and length Width Length 7 Test 7.1 General condition of test The general condition of test shall be as follows. 7.1.1 Standard condition in test place The standard condition in test place shall be at 23 O C I 2
24、 O C of temperature and (50k 2) % of relative humidity specified in JIS Z 8703, if not specified particularly. 7.1.2 Sampling method of sample The sampling method of test sample shall be as follows. a) For the test pieces to be used for the tests of thickness, strength (tensile strength and elongati
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