1、CEN EN*IS0*787- LL 95 W 3404589 OLL7280 391 BRITISH STANDARD General methods of test for pigments and extenders Part 11. Determination of tamped volume and apparent density after tamping The European Standard EN IS0 787-1 1 : 19% tias the stam of a British Standard BS EN IS0 787-11 : 1995 U- -.- c-
2、c- - . CEN EN*IS0*787- 11 95 3404589 OLL7281 228 EUROPEAN STANDARD EN IS0 787-11 A -? NORME EUROPENNE EcTROPISCE NORM August 1995 ICs 87.060. IO; 87.060.30 Descriptors: Paints, pigments, tvsts. chemical analysis, determination, density measurenient. volume, volumeters English version General methods
3、 of test for pigments and extenders - Part 11: Determination of tamped volume and apparent density after tamping (IS0 787-11 : 1981) Mthodes gnrales dessai des pigments et matires de charge - Partie 11: Dtermination du masse volumique apparent et de la masse Allgemeine Pnifverfahren fr Pigmente und
4、Fullstoffe - Teil 11: Bestimmung des Stampfbolumens und der Stampfdichte apparente aprs tassement (IS0 787-11 : 1981) (IS0 787-11 : 1981) This European Standard was approved by CEN on 199503-23. CEN members are bound to comply with the CENKENELEC Internal Regulations wluch stipulate the conditions f
5、or giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such 1iat.ioriai standards may be obtained on application to the Central Secretanat or to any CEN member. This European Standard exists in three offic
6、iai versions (English, French. German). A version in any other language made by translation under the responsibiity 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 standards bodies of Austria, Be
7、lgium, 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 Nonnalication Europisches Komitee fiir Normung Central Secretariat: rue de
8、Stassart 36, B-1050 Brussels O 1995 All rights of reproduction and communication in any form and by any means reserved in aii countries to CEN and its members Ref. NO. EN IS0 787-11 : 1995 E CEN EN*IS0*787- 11 95 3404589 OLL7282 Lb4 W Page 2 EN IS0 787-11 : 1995 Foreword The text of the Intedonai St
9、andard attention is especially drawn to the following. lhe mmma has been used throughout as a decimal marker. In British Standards it is current practice to use a full point on the baseline as the decimal marker. Wherever the words This part of IS0 787 and International Standard appear, referring to
10、 this standard, they should be read as This Part of ES 3483 and British Standard respectively. BS EN IS0 787-1 1. Cross-references International standard Comrponding British Standard IS0 842-1974 IS0 4788- 1980 The Technical Committee has reviewed the provisions of IS0 565, to which reference is mad
11、e in the text and has decided that they are acceptable for use in conjunction with this standard. A related British Standard for IS0 565-1972 is BS 410 : 1976 Specification for test sievTs. BS 4726 : 1971 Methods for sampling raw materials for paints and varnishes (Technically equivalent) BS 04 : 19
12、82 Speafication for graduated glass measuring cylinders (Identical) Additional information. In the last paragraph of 5.2 of IS0 787/11-1981, it is stated that the whole procedure (clause 5) is to be repeated if the duplicate determinations differ by more than 10 ml. In implementing this standard in
13、the United Kingdom, it is recommended that, if repeat determinations are necessary, wherever possible both the sampling (clause 4) and the procedure (clause 5) should be repeated.* Compliance with a British Standard does not of itself confer immunity from legal obligations. This change has been repo
14、rted to the IS0 in a proposal to amend the text of the international standard. British Standards Institution CEN EN*IS0*787- 33 95 D 3404589 0337285 973 D 1 BS3483 : Part B10 : 1982 1 ml I Measuring cylinder Holder Shaft Sleeve Anvil 1 for measuring Figure - Tamping volumeter cylinder 4 5 CEN EN*IS0
15、*787- 33 95 3404589 0337286 BOT M *- I 5 Procedure - 1, Carry out the procedure in duplicate. 5.1 Test portion Take sufficient of the sample to carry out two determinations (about 500 ml), dry it in the oven (3.3) at 105 k 2 OC for 2 h and allow it to cool in the desiccator (3.5). NOTE - It may be c
16、onvenient to take a pre-determined mass of material such that it occupies the specified volume, and add this to the tared cylinder, Pass the dried material through the sieve (3.1) to disperse any agglomerates and add it to the graduated measuring cylinder (3.2.1) (previously weighed to the nearest 0
17、,5 g) so that no air pockets are formed. This may be achieved by tilting and turning the cylinder about its long axis whilst adding the material. When 200 f 10 ml of the material have been added, weigh the cylinder and the sample to the nearest 0,5 g (see the note). Tap the cylinder gently until the
18、 surface of the material is approx- imately horizontal. Replace the stopper. NOTE - It may be convenient to take a predetermined mass of material such that it occupies the specified volume, and add this to the tared cylinder. 5.2 Determination Place the cylinder in the holder (3.2.2) of the tamping
19、volumeter (3.2) and tamp it for approximately 1 250 revolutions of the cam (3.2.3). Read off the volume of the material to the nearest 1 ml. NOTE - If the surface of the material is no longer horizontal after tam- ping, it should nevertheless be possible to estimate the volume to the nearest 1 ml. C
20、ontinue tamping in steps of approximately 1 250 revolutions, reading off the volume of the material after each step, until the difference between the volume at the end of two successive steps of 1 250 tampings is less than 2 ml. Record the final value as the volume of the material ater tamping. * If
21、 the two determinations differ by more than 10 ml, repeat the whole procedure (clause 5). BS 3483 : Part B10 : 1982 6 Expression of results 6.1 Calculation Calculate the tamped volume by the equation 100 v ml - mo v, = Calculate the apparent density after tamping by the equation e, where 100 Vt - ml
22、 - mo Y mo is the mass, in grams, of the empty cylinder; m, is the mass, in grams, of the cylinder and material; V is the volume. in millilitres, of the material after tamp- ing; vt is the tamped volume, in millilitres per 100 g, of the material; et is the apparent density, in grams per millilitre,
23、of the material after tamping. Take the mean of two determinations and report the result to the nearest 1 mI/l g or 0,Ol g/ml respectively. 6.2 Precision No precision data are currently available. 7 Test report The test report shall contain at least the following information a) the type and identifi
24、cation of the product tested; b) a reference to this International Standard (IS0 787/ 11 i; c) the result of the test as indicated in clause 6; di any deviation, by agreement or otherwise, from the procedure specified; e) the date of the test. See the paragraph headed Additional information in the n
25、ational foreword. CEN EN*IS0*787- 11 95 m 3404589 0337287 746 Y Publications referred to See the national foreword. For information about BSI seMces relating to third patty certification to suitable British Standard prcduct sp8cificatiOns. schemes for the registration of firms of assessed capability
26、. testing and inspection facilities and Technical Help to Exporters, piease contact the Director, Quality Assurance Division, BSI, Mayiands Avenue, Hemel Hempstead, Hem HP2 4SQ Tel Hemel Hempstead 31 1 1. CEN EN*IS0*787- 11 95 m 3404589 OLL7288 682 m Amd. No. BS3483:PartBlO: 1982 IS0 787/11-I981 Dat
27、e of issue This British Standard, having been prepared under the direction of the Pigments, Paints and Varnishes Standards Committee, was published under the authority of the Board of BSI and comes into effect on 30 November 1982. British Standards Institution, 1982 First published March 1974 First
28、revision November 1982 ISBN O 580 12939 X The following BSI references relate to the work on this standard: Committee reference PVCIl Draft for comment 80/50595 DC British Standards Institution . 2 Park Street London W1A 2BS Telephone 01-629 9000 Telex 266933 821 1-3-1 3k-8 PVCII 1 r CEN EN*IS0*787-
29、 LL 95 3404589 OLL7289 519 m AMD 8685 Amendment No. 1 published and effective from 15 December 1995 to BS 3483 : Part B10 : 1982 Methods for testing pigments for paints Part 510. Determination of tamped volume and apparent density after tamping NOTE. The European Committee for Standardization (CEN)
30、has accepted IS0 787-11 : 1981 as a European Standard designated as EN IS0 787-1 1 : 1995. This amendment implements EN IS0 787-1 1 : 1995 as a British Standard in the Bs EN IS0 series. Implementation of European Standard Front Page Delete all the text before the national foreword. AMD 868SDecember
31、1995 National foreword At the end of paragraph 1, insert the foilowing paragraph. In 1995 the European Committee for Standardization (CEN) accepted IS0 78-11 1981 as European Standard EN IS0 787-11 : 1995. As a consequence of rnplenentig the European Standard tkis British Standard is renumbered as B
32、S Ei; IS0 CS-11 md any reference to RS 3483 : Part I310 should be read as a reference lo BS EN IS0 787- 11. AMD 8685December 1995 _- New hnt cover, EN title page and foreword Attach the new front cover. EN title page and foreword. AMD 8685December 1995 -_-_-_-_-_-_- -_- 95124.35k- DP Product code 00
33、6337476 STVI CEN EN*IS0*787- LL 75 3404589 OLL7290 230 BRITISH STANDARD General methods of test for pigments and extenders Part 11. Determination of tamped volume and apparent density after tamping Thc European Standard EN IS0 787-1 1 : 1995 has the status of a British Standard BS EN IS0 787-11 : 19
34、95 CEN EN*ISO*787- LL 95 W 3404587 OL1727L 177 4 .I 4 EUROPEAN STANDARD , NORME EUR0PEE”E EUROPmm NORM EN IS0 787-11 August 1995 1C.S 87.060.10; 87.060.30 Descriptors: Paints, pigments, tests, chemical analysis, determination, density measurement, volunie, volunieters English version General methods
35、 of test for pigments and extenders - Part 11: Determination of tamped volume and apparent density after tamping (IS0 787-11 1981) Mthodes gnrales dessai des pigments et matires de charge - Partie II: Dtermination du masse volumique apparent et de la masse apparente aprs tassement (IS0 787-11 : 1981
36、) Allgemeine Pnifkerfahren fur Pigmente und Fullstoffe - Teil 11: Bestimmung des Stampfvolumens und der Stampfdichte (IS0 787-11 : 1981) This European Standard was approved by CEN on 199503-23. CEN members are bound to comply with the CENKENELEC Internal Regulations which stipulate the conditions fo
37、r giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographicai references concerning such national standards may be obtained on application t.o the Central Secretanat or to any CEN member. This European Standard exists in three official
38、 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 standards bodies of Austria, Belg
39、ium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and Lnited Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fur Normung Central Secretariat: rue de Sta
40、ssart 36, B-1050 Brussels O 1995 AU rights of reproduction and communication in any form and by any means reserved in ali countries to CEN and its members Ref. No. EN IS0 787-11 : 1995 E CEN EN*IS0*787- LL 95 3404589 OLL7292 003 Page 2 EN IS0 787-11 : 1995 Foreword The text of the International Stan
41、dard from ISWC 35, Paints and varnishes, of the International Organizafion for Standardization (ISO) has been taken over as a European Standard by the Technical Committee CEN/TC 298, Pigments and extenders. This European Standard shd be given the status of a national standard, either by publication
42、of an identical text or by endorsement, at the latest by Februm 1W, and conflicting national standards shall be withdrawn at the latest by February 1996. According to CENKENELEC internal Regulations, the foilowing countries are bound to implement this European Standard Amtria, Belgium, Denmark, Finiand, France, Germany, Greece, Iceland, Ireland, My, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom.
