1、 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS ISO 15100:2000 ICS 83.
2、120 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Plastics Reinforcement fibres Chopped strands Determination of bulk densityThis British Standard, having been prepared under the direction of the Sector Committee for Materials and Chemicals, was published under the authority
3、 of the Standards Committee and comes into effect on 15 March 2001 BSI 03-2001 ISBN 0 580 36840 8 BS ISO 15100:2000 Amendments issued since publication Amd. No. Date Comments National foreword This British Standard reproduces verbatim ISO 15100:2000 and implements it as the UK national standard. The
4、 UK participation in its preparation was entrusted to Technical Committee PRI/42, Fibre reinforced thermosetting plastics and prepregs, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretati
5、on, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which impl
6、ement international publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to inclu
7、de all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, the IS
8、O title page, pages ii and iii, a blank page, pages 1 to 4, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued.INTERNATIONAL STANDARD ISO 15100 First edition 2000-11-01 Reference number ISO 15100:2000(E) Plastics Rei
9、nforcement fibres Chopped strands Determination of bulk density Plastiques Fibres de renfort Fils coups Dtermination de la masse volumique apparenteISO15100:2000(E) ii ISO 15100:2000(E) iii Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standa
10、rds bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical com- mittees. 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 org
11、anizations, governmental and non-governmental, in liai- son with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules giv
12、en in the ISO/IEC Directives, Part 3. Draft International 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 possibili
13、ty that some of the elements of this International Standard may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. International Standard ISO 15100 was prepared by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 13, Composites a
14、nd reinforcement fibres. Annex A of this International Standard is for information only.INTERNATIONAL STANDARD ISO 15100:2000(E) 1 Plastics Reinforcement fibres Chopped strands Determination of bulk density 1 Scope This International Standard specifies a method for determining the bulk density of dr
15、y, uncompacted chopped strands of glass fibre which are commonly used for the reinforcement of thermoplastic resins. This test may be used for product control or for quality control. This test method is not recommended for use when the chopped glass-fibre strands are wet, exceed a length of or do no
16、t exhibit a reasonable ease of flow when transferred from one container to another. NOTE This test measures the free-flowing bulk density. The bulk density of compacted material will be different than that meas- ured by this test. 2 Normative reference The following normative document contains provi
17、sions which, through reference in this text, constitute provisions of this International Standard. For dated references, subsequent amendments to, or revisions of, any of these publica- tions do not apply. However, parties to agreements based on this International Standard are encouraged to investi-
18、 gate the possibility of applying the most recent edition of the normative document indicated below. For undated references, the latest edition of the normative document referred to applies. Members of ISO and IEC maintain reg- isters of currently valid International Standards. ISO 291, Plastics Sta
19、ndard atmospheres for conditioning and testing. 3 Principle A container of known volume is filled with chopped glass-fibre strands and weighed. The resulting weight is divided by the volume of the container to obtain the density (in ). 4A p p a r a t u s 4.1 Balance, of minimum capacity, reading to
20、calibration accuracy: ). 4.2 Volumetric container, of well defined volume. This is typically a size beaker, or a graduated cylinder. IMPORTANT The total volume of the container shall be known to the nearest 0,5 millilitres. This total vol- ume may be larger than that indicated by the reference line
21、s marked on the container. NOTE See annex A for information on one method of determining the container volume. 4.3 Funnel, capacity , made of glass or plastic, with approximate dimensions as shown in Figure 1. 4.4 Large spatula, knife or trowel, having a flat edge longer than the width of the openin
22、g of the container used. 5 Conditioning The laboratory sample shall be conditioned for at least in one of the standard atmospheres defined in ISO 291. 8mm g/cm 3 500 g 0,1 g 1 g 500 ml 150 ml 2hISO 15100:2000(E) 2 The testing shall be performed in the same standard atmosphere. 6 Sampling 6.1 Collect
23、 a sample of chopped glass-fibre strands of approximately from an elementary unit (e.g. a batch or lot) or from the production line. 6.2 Take two specimens for the determination of the bulk density from this sample. Handle the material carefully to prevent damage. The specification or the person ord
24、ering the test shall state how many determinations, as described in this Interna- tional Standard, are to be run and from which locations within the elementary unit the samples must be taken. 7 Procedure 7.1 Weigh the container to the nearest and record the mass as (tare mass). 7.2 Position the funn
25、el about above the container. 7.3 Pour the chopped strands through the funnel into the flask as quickly as possible without the material clogging the funnel. A spatula or knife may be used as an aid in transferring the material. Dimensions in millimetres Key 1 Container 2 Funnel Figure 1 Approximate
26、 funnel dimensions 1kg 0,1 g m 1 2cmISO 15100:2000(E) 3 7.4 When the container overflows, stop feeding. Pass the straight edge of a ruler, knife or spatula over the top of the container to discard chopped strands above the top of the container. Be careful not to compact the strands, or to re- move s
27、trands which are below the top of the container. See Figure 2. 7.5 Weigh the container with the chopped strands and record the mass as . 7.6 Subtract from to obtain the mass of the chopped strands in the container, . 7.7 Empty the container completely, then repeat steps 7.1 to 7.6 to obtain a second
28、 value of the mass of the chopped strands in the container, . 8 Expression of results 8.1 For each individual determination, divide the mass of the strands in the container in grams ( and ) by the volume of the container in . 8.2 Report as the test result the average of the two values of the bulk de
29、nsity calculated in 8.1. 9 Test report The test report shall include the following information: a) a reference to this International Standard; b) all details necessary for complete identification of the material tested; c) the test result (and, if required, the value for each individual determinatio
30、n); d) any other useful information relating to the test or the material; e) the date of the test. a Move straight edge b Strands level with top of container Figure 2 Levelling the strands in the container m 2 m 1 m 2 m 3a m 3b m 3a m 3b cm 3ISO 15100:2000(E) 4 Annex A (informative) One method of de
31、termining the container volume To determine the chopped-strand bulk density by this test method, the volume of the container used to weigh the strands must be known to a high degree of accuracy. The volume of the container can be found by determining the mass of water needed to fill it, then convert
32、ing this mass into the container volume, applying a temperature correc- tion. When a glass vessel contains grams of water at a temperature , the volume of the container is given by the equation: where is the container volume; is the water temperature correction factor; is the mass of water in the co
33、ntainer in grams. To determine the volume of the container: 1) dry the container, if necessary; 2) weigh the dry container to the nearest (tare); 3) condition to equilibrium at one of the standard temperatures defined in ISO 291 ( or ) a sufficient amount of water to perform the following steps; 4)
34、fill the container with conditioned water to the very top; 5) weigh the container plus water; 6) subtract the mass of the dry container from the mass of the container plus water; 7) select the conversion factor ( for water at or for water at ); 8) multiply the mass of the water from step 6) by the c
35、onversion factor from step 7) to obtain the container vol- ume; 9) mark the container volume on the container for future reference. Gt C V =Wt G V Wt G 1g 23 C2 7 C Wt 1,003 5 23 C 1,004 6 27 CBS ISO 15100:2000 BSI 389 Chiswick High Road London W4 4AL | | | | | | | | | | | | | | | | | | | | | | | |
36、 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BSI British Standards Institution BSI is the independent national body responsible for prepari
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