1、 ISO 2015 Animal feeding stuffs Determination of ash insoluble in hydrochloric acid AMENDMENT 1 Aliments des animaux Dosage des cendres insolubles dans lacide chlorhydrique AMENDEMENT 1 INTERNATIONAL STANDARD ISO 5985 Second edition 2002-11-15 Reference number ISO 5985:2002/Amd.1:2015(E) AMENDMENT 1
2、 2015-11-15 ISO 5985:2002/Amd.1:2015(E)ii ISO 2015 All rights reserved COPYRIGHT PROTECTED DOCUMENT ISO 2015, Published in Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mecha
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4、witzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 copyrightiso.org www.iso.org ISO 5985:2002/Amd.1:2015(E) Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards i
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10、e WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary information. Amendment 1 to ISO 5985 was prepared by ISO/TC 34, Food products, Subcommittee SC 10, Animal feeding stuffs. ISO 2015 All rights reserved iii Animal feeding stuffs Determination of
11、ash insoluble in hydrochloric acid AMENDMENT 1 Page 2, 6 Apparatus Add the following part: 6.8 Ash-free filter paper. The percentage of ash cannot exceed 0,01 % of the filter paper. Page 3, 8.2.2.2 Replace “Filter the hot solution through an ash-free filter paper and wash the filter paper and residu
12、e with hot water until the washings are free from acid.” with “Filter the hot solution through an ash-free filter paper (6.8) and wash the filter paper and residue with hot water until the washings are free from acid.” Page 4, Table 1 Replace “Crude ash insoluble in HCl” with “Ash insoluble in HCl”
13、and correct some values of the table. Replace the unit of grams per kilogram to harmonize with the expression of the results (Clause 9) and add the units directly in the table. Table 1 Repeatability limit (r) and reproducibility limit (R) Values in grams per 100g Sample Ash insoluble in HCl, g/100g
14、r g/100g R g/100g Fishmeal 0,82 0,08 0,23 Tapioca 3,46 0,28 0,48 Meat meal 0,86 0,08 0,19 Piglet feed 0,26 0,03 0,10 Broiler feed 0,17 0,03 0,09 Barley 0,26 0,05 0,16 Palm kernel expellers 0,60 0,08 0,11 ISO 5985:2002/Amd.1:2015(E) ISO 2015 All rights reserved 1 ISO 5985:2002/Amd.1:2015(E) Page 6, T
15、able A.1 Replace “Mean crude ash content insoluble in HCl, g/kg “ with “Mean content of ash insoluble in HCl, g/100g”, correct some values in the table, replace the unit of grams per kilogram, to be in accordance with expression of results (Clause 9) and add the explanatory note below: NOTE ISO 5985
16、:2002 contains incorrect figures due to miscalculation in the reproduction of the performance characteristics. The following Table A.1 contains the correct numbers. Table A.1 Statistical results of interlaboratory tests Parameter Sample a 1 2 3 4 5 6 7 Mean content of ash insoluble in HCl, g/100g 0,
17、82 3,46 0,86 0,26 0,17 0,26 0,60 Repeatability standard deviation (s r ), g/100g 0,03 0,10 0,03 0,01 0,01 0,02 0,03 Repeatability coefficient of variation, % 3,4 2,8 3,1 4,2 6,4 6,5 4,8 Repeatability limit (r), g/100g 0,08 0,28 0,08 0,03 0,03 0,05 0,08 Reproducibility standard deviation (s R ), g/10
18、0g 0,08 0,17 0,07 0,03 0,03 0,06 0,04 Reproducibility coefficient of variation, % 9,8 4,9 7,7 13,6 19,7 22,5 6,6 Reproducibility limit (R), g/100g 0,23 0,48 0,19 0,10 0,09 0,16 0,11 a1: fishmeal 5: broiler feed2: tapioca 6: barley3: meat meal 7: palm kernel expellers4: piglet feed2 ISO 2015 All rights reserved ISO 5985:2002/Amd.1:2015(E) ISO 2015 All rights reserved ICS 65.120 Price based on 2 pages
