《BS-EN-ISO-9665-1995.pdf》由会员分享，可在线阅读，更多相关《BS-EN-ISO-9665-1995.pdf（24页珍藏版）》请在三一文库上搜索。
1、BRITISH STANDARD BS EN ISO 9665:1995 Incorporating Amendment No. 1 Adhesives Animal glues Methods for sampling and testing The European Standard EN ISO 9665:1995 has the status of a British Standard Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 02:06:43 GMT+00:00 2006, Uncontrolled Copy, (c
2、) BSI BS EN ISO 9665:1995 This British Standard, having been prepared under the direction of the Adhesives Standards Policy Committee, was published under the authority of the Standards Board and comes into effect on 15 September 1993 BSI 04-2000 First published December 1935 Second edition Septembe
3、r 1938 Third edition March 1959 Fourth edition April 1969 Fifth edition August 1981 Sixth edition September 1993 The following BSI references relate to the work on this standard: Committee reference ADC/15 Draft for comment 90/53830 DC ISBN 0 580 22212 8 Committees responsible for this British Stand
4、ard The preparation of this British Standard was entrusted by the Adhesives Standards Policy Committee (ADC/-) to Technical Committee ADC/15, upon which the following body was represented: British Adhesives and Sealants Association Amendments issued since publication Amd. No.DateComments 8480October
5、 1995 Indicated by a sideline in the margin Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 02:06:43 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN ISO 9665:1995 BSI 04-2000i Contents Page Committees responsibleInside front cover National forewordii Foreword2 Introduction3 1Scope3 2Normativ
6、e references3 3Definitions3 4Sampling3 5Preparation of test sample4 6Determination of moisture content5 7Measurement of gel strength6 8Comparison of gel strength7 9Determination of viscosity8 10Determination of softening point10 11Determination of setting point11 12Determination of foam11 13Determin
7、ation of pH12 14Determination of grease content12 15Determination of ash13 16Determination of keeping quality13 Annex A (informative) Instruments for determining gel strength15 Figure 1 Detail of plunger for gelometer6 Figure 2 Dummy Bloom device7 Figure 3 American pipette and suitable container9 Fi
8、gure A.1 Bloom-type gelometer16 Figure A.2 Texture analyser gelometer18 Table 1 Glue concentrations4 List of referencesInside back cover Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 02:06:43 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN ISO 9665:1995 ii BSI 04-2000 National foreword Thi
9、s British Standard has been prepared under the direction of the Adhesives Standards Policy Committee. It is identical with ISO 9665:1993 Adhesives Animal glues Methods for sampling and testing. ISO 9665 was produced as a result of international discussion in which the UK took an active part. In 1994
10、 the European Committee for Standardization (CEN) accepted ISO 9665:1993 as European Standard EN ISO 9665:1995. As a consequence of implementing the European Standard this British Standard is renumbered as BS EN ISO 9665:1995 and any reference to BS 647:1993 should be read as a reference to BS EN 96
11、65:1995. This standard supersedes BS 647:1981 which is withdrawn. The Technical Committee has reviewed the provisions of ISO 3105:1976 to which normative reference is made in the text, and has decided that they are acceptable for use in conjunction with this standard. Appropriate standards for deter
12、mining the bond strength of adhesively bonded joints should be consulted and used. A British Standard does not purport to include 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 itsel
13、f confer immunity from legal obligations. Cross-references International StandardCorresponding British Standard ISO 4788:1980BS 604:1982 Specification for graduated glass measuring cylinders (Identical) Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, th
14、e EN ISO title page, pages 2 to 18, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 02:
15、06:43 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 9665 January 1995 ICS 83.180 Descriptors: Adhesives, animal glues, glues, sampling methods, testing, sampling English version Adhesives Animal glues Methods for sampling and testing (ISO 9665:19
16、93) Adhsifs colles dorigine animale Mthodes dchantillonnage et dessai (ISO 9665:1993) Klebstoffe Tierische Leime Verfahren fr Probenahme und Prfung (ISO 9665:1993) This European Standard was approved by CEN on 1994-11-21. CEN members are bound to comply with the CEN/CENELEC Internal Regulations whic
17、h stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member. This European Stan
18、dard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national stan
19、dards bodies of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Cen
20、tral Secretariat: rue de Stassart 36, B-1050 Brussels 1995 Copyright reserved to CEN members Ref. No. EN ISO 9665:1995 E Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 02:06:43 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN ISO 9665:1995 BSI 04-2000 2 Foreword This European Standard has been
21、taken over by the Technical Committee CEN/TC 193, Adhesives, from the work of ISO/TC 61, Plastics, of the International Organization for Standardization (ISO). This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at th
22、e latest by July 1995, and conflicting national standards shall be withdrawn at the latest by July 1995. According to the CEN/CENELEC Internal Regulations, the following countries are bound to implement this European Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ire
23、land, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 02:06:43 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN ISO 9665:1995 BSI 04-20003 Introduction The physical and chemical properties of animal
24、glue depend firstly on the nature of the raw material and secondly on the methods of processing. It is not possible to develop any simple tests that will evaluate completely the quality of a glue, or its suitability for a particular use. If, however, the glue is made from a specific type of raw mate
25、rial by a usual method of manufacture, then the following tests provide indications of the behaviour of the glue in use, and may be taken as reliable criteria of quality. Amongst these properties, the gel strength or viscosity, or both, are usually included as general indices of quality. The foam te
26、st is of interest when the glue is to be applied by special machines. Many of the physical tests (e.g. gel strength, water absorption, foam) are of an empirical character, but if the methods are carefully followed consistent results are obtainable which will provide useful information both to the ma
27、nufacturer and user. Small samples of glue rapidly change their moisture content in response to changes in atmospheric humidity. It is essential to keep the moisture content of samples unchanged after they are taken. The use of sealed waterproof storage containers is recommended for this purpose. If
28、 a consignment undergoes long delays in transit, the average moisture content may change between the times of sampling by producer and consumer. To avoid this problem causing unnecessary disputes, it is recommended that, when gel strengths or viscosities are reported, the results of moisture content
29、 tests should also be given, if an accurate comparison is required. Although the remaining tests listed in Table 1 may also be slightly affected by changes in moisture content, the differences are not significant and it is not necessary to report moisture contents for them. 1 Scope This Internationa
30、l Standard specifies the methods to be used for sampling and testing bone and skin glues in the form of powder, granules, pearls or cubes. NOTE 1The methods may be extended to the testing of other forms of animal glues by suitable calculation of the equivalent dry glue content. The precision of the
31、test methods included in this International Standard is not known because inter-laboratory data are not available. When inter-laboratory data are obtained, precision statements will be added to the corresponding test methods at the next revision. NOTE 2For details of precision statements, refer to I
32、SO 5725:1986, Precision of test methods Determination of repeatability and reproducibility for a standard test method by inter-laboratory tests. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this International Standa
33、rd. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Members of IEC
34、 and ISO maintain registers of currently valid International Standards. ISO 3105:1976, Glass capillary kinematic viscometers Specification and operating instructions. ISO 4788:1980, Laboratory glassware Graduated measuring cylinders. 3 Definitions For the purposes of this International Standard, the
35、 following definitions apply. 3.1 moisture content the percentage loss in mass of the sample when a thin, evenly distributed film of the glue is dried at 105 C for 18 h 1 h under standard conditions (see clause 6) 3.2 gel strength a measure in arbitrary units of the rigidity modulus of a gel prepare
36、d and matured under standard conditions (see clause 7) 4 Sampling 4.1 General The results of the analysis of glue carried out in accordance with this International Standard are limited in their practical use by the degree to which the 1 kg test sample represents the whole consignment. 4.2 Initial se
37、lection of sample The containers shall be selected from various parts of the consignment in such a manner that the widest representation is obtained. The number of containers to be sampled shall be fixed by agreement between purchaser and vendor. State the number of containers sampled in the test re
38、port. Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 02:06:43 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN ISO 9665:1995 4 BSI 04-2000 From containers of 50 kg or more of glue, take a sample weighing not less than 1 kg when there is only one container, and an increment of not less than 500
39、g from each container when there is more than one; from containers of less than 50 kg of glue take a proportionate amount. This sample is called the preliminary sample. Take appropriately sized samples by means of a sampling tube, scoop or similar tool to ensure that glue is taken from the top, midd
40、le and bottom of the container. Store these preliminary samples in clean, dry, air-tight, non-absorbent containers until required. NOTE 3For further guidance, reference should be made to ISO 3951:1989, Sampling procedures and charts for inspection by variables, for percent nonconforming, and ISO 821
41、3:1986, Chemical products for industrial use Sampling techniques Solid chemical products in the form of particles varying from powders to coarse lumps. 4.3 Final selection of sample Mix the preliminary samples thoroughly and take one or more samples from the bulk, each weighing not less than 1 kg, a
42、nd store them in clean, dry, air-tight, non-absorbent containers. These samples shall be known as the laboratory samples. 5 Preparation of test sample 5.1 Reduction of solid (powdered, pearl, cube and granulated) glue sample Grind the sample by hand in a mortar, or alternatively in a laboratory disi
43、ntegrator, of a type capable of grinding the sample to a particle size of 3 mm or smaller. This sample is called the test sample. If necessary, quarter this sample in the usual manner to bring the final mass to 500 g, taking care that a representative amount of all particle sizes is included in the
44、quartering. Keep the powdered samples so obtained in two air-tight containers, one container for the test sample for moisture content (see clause 6) and the second container for all other tests. The type of disintegrator used to grind the sample shall be agreed on between the purchaser and vendor be
45、cause different types of disintegrator generate different amounts of heat and have different effects on the moisture content of the sample. Because of the loss of moisture in grinding, take a separate sample for the moisture content test from the material obtained by the preliminary breaking up, bef
46、ore the material is put through the disintegrator. This small separate sample is then powdered by hand in a mortar and pestle, or cut with scissors, and is suitable for the moisture content test. Make adjustment for the moisture content of the mechanically ground sample by comparison with the hand-g
47、round sample, which is considered as having the more reliable moisture content. By comparing the actual moisture content found on the hand-ground sample with the moisture content of the mechanically ground sample, the necessary adjustment to be made to the mass of the glue to be used in the various
48、tests is determined by calculation. Place all samples immediately into an air-tight container because even a small change in the moisture content will affect the result of some of the tests; for example, an increase of 1 % moisture will result in a decrease of about 2,5 % in gel strength when determ
49、ined on the Bloom-type gelometer. 5.2 Concentrations for solid glues Table 1 summarizes the mass of glue and volume of water required for each of the tests described. Weigh the specified quantity of the powdered sample for each test separately, rather than by working from a large quantity of stock solution. Table 1 Glue concentrations ClauseTest Mass of glue g Volume of water ml 6 7 8 9 10 11 12 13 14 16 Moisture content Gel strength (see 7.5.2) Comparison of gel strength Viscosity Softening point Setting point Foam pH