1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN ISO 10352:2010Fibre-reinforced plastics Moulding compounds and prepregs Determination of mass per unit area (ISO 10352:2010)BS EN ISO 10352:2010 BRITISH STANDARDNational fo
2、rewordThis British Standard is the UK implementation of EN ISO10352:2010. It supersedes BS EN ISO 10352:1997, which is withdrawn. The UK participation in its preparation was entrusted to TechnicalCommittee PRI/42, Fibre reinforced thermosetting plastics andprepregs.A list of organizations represente
3、d on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. BSI 2011 ISBN 978 0 580 65082 6 ICS 83.120 Compliance with a British Standard cannot confer immunit
4、y fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 28 February 2011. Amendments issued since publicationDate T e x t a f f e c t e dEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 10352 December 2010 ICS 83.120 Su
5、persedes EN ISO 10352:1997English Version Fibre-reinforced plastics - Moulding compounds and prepregs - Determination of mass per unit area (ISO 10352:2010) Plastiques renforcs - Mlanges mouler et primprgns - Dtermination de la masse surfacique (ISO 10352:2010)Faserverstrkte Kunststoffe - Formmassen
6、 und Prepregs - Bestimmung des Flchengewichtes (ISO 10352:2010) This European Standard was approved by CEN on 10 December 2010. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard
7、 without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any o
8、ther language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republi
9、c, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NO
10、RMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2010 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 10352:2010: EBS EN ISO 10352:2010 EN ISO 10352:2010 (E) 3 Foreword This docume
11、nt (EN ISO 10352:2010) has been prepared by Technical Committee ISO/TC 61 “Plastics” in collaboration with Technical Committee CEN/TC 249 “Plastics” the secretariat of which is held by NBN. This European Standard shall be given the status of a national standard, either by publication of an identical
12、 text or by endorsement, at the latest by June 2011, and conflicting national standards shall be withdrawn at the latest by June 2011. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsibl
13、e for identifying any or all such patent rights. This document supersedes EN ISO 10352:1997. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus,
14、Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 10352:
15、2010 has been approved by CEN as a EN ISO 10352:2010 without any modification. BS EN ISO 10352:2010ISO 10352:2010(E) ISO 2010 All rights reserved iiiContents Page Foreword iv 1 Scope1 2 Normative references1 3 Terms and definitions .1 4 Principle .1 5 Apparatus.2 6 Conditioning and testing 2 6.1 Con
16、ditioning 2 6.1.1 Materials for which no conditioning is required 2 6.1.2 Conditioning of material stored at ambient temperature2 6.1.3 Conditioning of material stored at below ambient temperature.2 6.2 Testing2 6.2.1 Test atmosphere2 6.2.2 Time interval between conditioning and testing3 7 Test spec
17、imens3 7.1 Shape and dimensions .3 7.2 Number .4 7.3 Preparation.4 8 Procedure.4 8.1 Materials made without using a solvent .4 8.2 Materials made using a solvent .4 9 Expression of results5 9.1 Samples made without using a solvent 5 9.2 Samples made using a solvent 5 10 Precision 5 11 Test report6 B
18、S EN ISO 10352:2010ISO 10352:2010(E) iv ISO 2010 All rights reservedForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technica
19、l committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely wit
20、h the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft Inter
21、national Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may
22、 be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 10352 was prepared by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 13, Composites and reinforcement fibres. This third edition cancels and replaces the second edition (I
23、SO 10352:1997), which has been technically revised to make a distinction between materials which have been manufactured using a solvent and those which have been manufactured without using a solvent, a different variant of the procedure being specified for each. BS EN ISO 10352:2010INTERNATIONAL STA
24、NDARD ISO 10352:2010(E) ISO 2010 All rights reserved 1Fibre-reinforced plastics Moulding compounds and prepregs Determination of mass per unit area 1 Scope This International Standard specifies a method for the determination of the mass per unit area of sheet moulding compound and preimpregnated uni
25、directional sheet, tape, fabric and mats. Unless stated to the contrary in the relevant material specification, this International Standard is applicable to prepregs in which any type of reinforcement (aramid, carbon, glass, etc.) and any type of matrix (thermosetting or thermoplastic) has been used
26、. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 291, Plastics Standa
27、rd atmospheres for conditioning and testing 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 elementary unit individual sample roll or sheet which is intended for the measurement of mass per unit area using this International Standard NOTE Pre
28、pregs are usually supplied in rolls or in packs of sheets. In this context, an individual roll or pack of sheets is an elementary unit. 3.2 laboratory sample sample taken from an elementary unit 3.3 test specimen specimen cut from a laboratory sample 4 Principle The mass of a test specimen of known
29、area is determined. Two different specimen sizes are specified, depending on the type of material. If the material has been manufactured using a solvent or if the volatile-matter content of the material is not negligible, the sample is conditioned in a specified atmosphere before test specimens are
30、taken. The result is expressed as the mass per unit area. BS EN ISO 10352:2010ISO 10352:2010(E) 2 ISO 2010 All rights reserved5 Apparatus 5.1 Balance, graduated in tenths of grams and accurate to 0,5 g for type Ia and type Ib specimens, or graduated in milligrams and accurate to 5 mg for type IIa an
31、d type IIb specimens. 5.2 Square template, with the dimensions given in Table 1 for the material being tested, with a tolerance of 0,1 mm on the length of each side. 5.3 Ancillary items, such as a sharp cutting tool and tweezers. 6 Conditioning and testing 6.1 Conditioning 6.1.1 Materials for which
32、no conditioning is required Conditioning is not required for the following materials: those which are known to have been manufactured without using a solvent and to have been stored under conditions close to standard atmospheric conditions; those for which the volatile-matter content is known, from
33、test data, to be negligible and which are known to have been stored under conditions close to standard atmospheric conditions; those for which the material specification states that no conditioning is required. After the laboratory sample has been cut from an elementary unit, the sample shall be cov
34、ered with a plastic film. 6.1.2 Conditioning of material stored at ambient temperature With material which has been stored at ambient temperature, the laboratory sample cut from an elementary unit shall be conditioned in the same standard atmosphere as that which will be used for testing (see 6.2.1)
35、 for a minimum of 2 h, unless otherwise specified. The laboratory sample shall be kept covered with its protective films in a solvent-resistant bag. 6.1.3 Conditioning of material stored at below ambient temperature With material which has been stored at temperatures lower than ambient temperature,
36、the material (generally an elementary unit), suitably packed in an airtight, solvent-resistant bag to prevent moisture pick-up, shall be allowed to reach ambient temperature over a period of time determined by the mass of the package. This time shall not be less than 8 h, and the actual time shall b
37、e recorded in the test report. When the material has reached ambient temperature, the laboratory sample cut from the elementary unit shall be conditioned in the same standard atmosphere as that which will be used for testing (see 6.2.1) for a minimum of 2 h, unless otherwise specified. The laborator
38、y sample shall be kept covered with its protective films in a solvent-resistant bag. 6.2 Testing 6.2.1 Test atmosphere The test shall be carried out in a standard atmosphere as specified in ISO 291. BS EN ISO 10352:2010ISO 10352:2010(E) ISO 2010 All rights reserved 36.2.2 Time interval between condi
39、tioning and testing 6.2.2.1 Materials not requiring conditioning There is no time-interval requirement for the three categories of material described in 6.1.1. 6.2.2.2 Materials requiring conditioning After conditioning, the test shall be carried out within 6 h unless otherwise specified, the labora
40、tory sample being kept in the same standard atmosphere as that which will be used for testing until the test is carried out (see 6.1.2 or 6.1.3). 7 Test specimens 7.1 Shape and dimensions The preferred test specimen shape is a square with the dimensions given in Table 1, which depend on the type of
41、material. The various types of material given in Table 1 are defined as follows: Type Ia materials: relatively heavy materials, such as sheet moulding compounds, preimpregnated mats and woven prepregs, made without using a solvent. Type Ib materials: relatively heavy materials, such as sheet mouldin
42、g compounds, preimpregnated mats and woven prepregs, made using a solvent. Type IIa materials: relatively light materials, such as unidirectional prepregs (e.g. for aerospace use), made without using a solvent. Type IIb materials: relatively light materials, such as unidirectional prepregs (e.g. for
43、 aerospace use), made using a solvent. NOTE 1 A production method which uses a solvent is usually called a “wet” method and a production method which does not use a solvent is usually called a “dry” method or “hot melt” method. NOTE 2 The designations type IIa and type IIb are usually used for relat
44、ively lightweight materials that require a more accurate determination. For special applications, rectangular specimens, round specimens or square specimens of dimensions different from those given in Table 1 may be used by agreement between the interested parties. The surface area of these specimen
45、s should preferably be between 0,04 m2and 0,10 m2for type Ia and type Ib materials and between 0,01 m2and 0,04 m2for type IIa and type IIb materials. Table 1 Preferred specimen sizes Type of material Description of material Specimen size m Ia or Ib Sheet moulding compounds, preimpregnated mats and h
46、eavy preimpregnated fabrics 0,20 0,20 IIa or IIb Lightweight unidirectional prepregs and preimpregnated fabrics 0,10 0,10 BS EN ISO 10352:2010ISO 10352:2010(E) 4 ISO 2010 All rights reserved7.2 Number Unless otherwise required by the material specification or agreed between the interested parties, t
47、hree test specimens shall be taken. 7.3 Preparation Test specimens will usually be taken from the laboratory sample cut from an elementary unit comprising a roll or a pack of sheets. If necessary, taking into account the roll dimensions and the number of sheets per pack, an agreement between the int
48、erested parties shall define either the size of the laboratory sample to be taken from each elementary unit or other information such as the number of specimens and their location within the laboratory sample. The specimens shall be taken uniformly across the roll or sheet and cut perpendicularly to
49、 the edges of the sheet. The specimens shall be taken at least 50 mm away from the edges of the roll or sheet and from any folds or creases in the roll or sheet. In the case of an edge-trimmed roll or sheet without folds or creases, the specimens may be taken from the edge of roll or sheet (see Figure 3). Typical cutting plans are shown in Figures 1, 2 and 3. NOTE In practice, the locations from which the specimens are taken will usually be specified by the material specification or be agreed between the interested pa
