1、DEUTSCHE NORM October 1996 I DIN Feather and down Method of test for determining the oxygen index number - 11- English version of DIN EN 1162 I I tN ll6 ICs 67.120.20; 97.160 Descriptors: Feather, down, oxygen index number, testing. Federn und Daunen - Prfverfahren - Bestimmung der Sauerstoffzahl Eu
2、ropean Standard EN 1162: 1996 has the status of a DIN Standard. A comma is used as the decimal marker. National foreword This standard has been prepared by CEN/TC 222. The responsible German body involved in its preparation was the Normenausschu Textil und Textilmaschinen (Textiles and Textile Machi
3、nery Standards Committee), Technical Committee Federn und Daunen. The DIN Standards corresponding to the International Standards referred to in clause 2 of the EN are as follows: IS0 Standard DIN Standard IS0 648 DIN 12690 IS0 3696 DIN IS0 3696 IS0 3819 DIN 12331 IS0 385-3 DIN 12700-2 Standards refe
4、rred to (and not included in Normative references) DIN 12331 DIN 12690 Beakers for laboratory use Classes A and B one-mark bulb pipettes for laboratory use Burettes with straight bore stopcock, for laboratory use DIN 12700-2 EN comprises 5 pages. O No part of this standard may be reproduced without
5、the prior permission of DIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verhg GmbH, Berlin, has the exclusive right of sale for German Standards (DIN-Normen) Ref. No. DIN EN 1762: 7996-10 Sales No. 11 05 05.97 Price group 05 EUROPEAN STAN DAR D NORME EUROPENNE EUROPISCHE NORM EN 1162 August 1
6、996 ICs 67.120.20; 97.160 Descriptors: Feather, down, oxygen index number, testing. English version Feather and down Test methods Determination of the oxygen index number Plumes et duvets - Mthodes dessai - Mesure de lindice doxygne Federn und Daunen - Prfverfahren - Bestimmung der Sauerstoffzahl Th
7、is European Standard was approved by CEN on 1996-05-09. CEN members are bound to comply with the CENKENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
8、concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member. This European Standard 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
9、 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, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Por- tugal, Spain, Sweden, Switz
10、erland, and the United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-IO50 Brussels O 1996. GEN - All rights of exploitation in any form and by any means reserved worldwide for CEN national
11、members. Ref. No. EN 1162:1996 E Page 2 EN 1162:1996 Foreword This European Standard has been prepared by the Technical Committee CENPTC 222 “Feather and down as filling material for any article, as well as finished articles filled with feather and down“, the secretariat of which is held by UNI. Thi
12、s European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by February 1997, and conflicting national standards shall be withdrawn at the latest by February 1997. According to the CENKENELEC Internal Regulations,
13、the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Page 3 EN
14、 1162:1996 1 Scope This European Standard specifies a method for determining the oxygen index number of feathers and down by means of a titration method. 2 Normative references This European Standard incorporates by dated or undated reference, provisions from other publications. These normative refe
15、rences are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the
16、 latest edition of the publication referred to applies. EN 201 39 Textiles - Standard atmospheres for conditioning and testing (IS0 1 39: 1973) EN 201 87 Paper, board and pulps - Standard atmosphere for conditioning and testing and procedure for monitoring the atmosphere and conditioning of samples
17、(IS0 187: 1 990) IS0 385-3 Laboratory glassware - Burettes - Part 3:Burettes for which a waiting time of 30 s is specified IS0 648 Laboratory glassware - One-mark pipettes IS0 835-3 Laboratory glassware - Graduated pipettes - Part 3:Pipettes for which a waiting time of 15 s is specified IS0 3696 Wat
18、er for analytical laboratory use - Specification and test methods IS0 381 9 Laboratory glassware - Beakers IS0 4793 Laboratory sintered (fritted) filters - Porosity grading, classification and designation 3 Definitions For the purposes of this standard the following definition applies: oxygen index
19、number (of feather and down): Quantity of oxidizable and soluble material present in the filtrate of the aqueous extract of the material. It provides an index of the cleanliness of the material being tested, and is expressed as milligrammes oxygen per 100 g of the individual sample. 4 Principle The
20、aqueous extract obtained at room temperature is titrated with a 0,02 mol/l solution of potassium permanganate. Page 4 EN 1162:1996 5 Reagents 5.1 Water Grade 3 in accordance with IS0 3696 5.2 3 rnol/l sulfuric acid 5.3 0,02 mol/l potassium permanganate 6 Apparatus 6.1 Analytical balance (with sensit
21、ivity of 0,l mg) 6.2 Tumbler jar, capacity 2000 ml 6.3 Beaker, capacity 2000 ml (in accordance with IS0 3819) 6.4 Beaker, capacity 400 mi (in accordance with IS0 381 9) 6.5 Shaking machine with 150 shakes per min and with shaking swing of 40 mm or tumbling machine with 150 min” 6.6 Sintered (fritted
22、) filter: pore size index P 160 (equal to G-1) 10 cm diameter (in accordance with IS0 4793) 6.7 One-mark pipette class A capacity 100 ml (in accordance with IS0 648) 6.8 Graduated pipette, capacity 5 ml (in accordance with IS0 835-3) 6.9 Microburette graduated in 0,02 ml (in accordance with IS0 385-
23、3) 6.10 Stopwatch 7 Conditioning and testing Test specimen of a representative part of the laboratory bulk sample shall be conditioned for a minimum period of 24 h in accordance with EN 20139 and the temperature and relative humidity shall be measured in accordance with EN 201 87. 8 Procedure 8.1 A
24、conditioned test specimen of mass of (IO k 0,l) g shall be placed in the tumbler jar; after adding 1 O00 ml of water (5.1 1, the jar shall be tumbled at room temperature for at least 60 min. 8.2 The resulting suspension shall be filtered through the P 160 sintered filter into the 2000 rnl beaker (6.
25、3); do not squeeze excess water from the feathers. 8.3 With the pipette transfer 100 ml of the filtrate into a 400 ml beaker, add 3 ml of 3 mol/l sulphuric acid and titrate with 0,02 mol/l potassium permanganate, adding Page 5 EN 1162:1996 approximately 0,02 ml at a time until a pink colour persists
26、 for 60 s. 8.4 A blank test of 100 ml water (5.1) shall be mixed with 3 ml of 3 mol/l sulfuric acid and titrated with 0,02 mol/l potassium permanganate, adding approximately 0,02 ml at a time until a pink colour persists for 60 s. 8.5 Repeat the test on another test specimen at least. 9 Expression o
27、f results The oxygen index number is calcuated as follows: / = 80 x (A - B) where: / is the oxygen index number; A is the quantity of 0,02 mol/l potassium permanganate used for the test specimen, in milliliter; B is the quantity of 0,02 mol/l potassium permanganate used for the blank test, in millil
28、iter. Calculate the mean of the two determinations with the approximation to the nearest integer. 10 Test report The test report shall include at least the following information: - the reference to this standard; - date and place of testing; - identification mark of the individual sample tested; - the arithmetic mean result to the nearest integer in accordance with clause 9; - any departure from the procedure and any other circumstances (for example the presence of antistatic agent) that can have affected the result.
