BS-6215-2-1981 ISO-6541-1981.pdf
《BS-6215-2-1981 ISO-6541-1981.pdf》由会员分享,可在线阅读,更多相关《BS-6215-2-1981 ISO-6541-1981.pdf(10页珍藏版)》请在三一文库上搜索。
1、BRITISH STANDARD BS 6215-2: 1981 ISO 6541:1981 Incorporating Amendment No. 1 Methods of Test for agricultural food products Part 2: Determination of crude fibre content (modified Scharrer method) UDC 664:633/635:543.868 Licensed Copy: sheffieldun sheffieldun, na, Wed Dec 06 13:26:51 GMT+00:00 2006,
2、Uncontrolled Copy, (c) BSI BS 6215-2:1981 This British Standard, having been prepared under the direction of the Food and Agriculture Standards Committee, was published under the authority of the Board of BSI and comes into effect on 30 November 1981 BSI 12-1999 The following BSI references relate t
3、o the work on this standard: Committee reference FAC/- Draft for comment 79/54941 DC ISBN 0 580 12473 8 Cooperating organizations The Food and Agriculture Standards Committee, under whose direction this British Standard was prepared, consists of representatives from the following: Agricultural Co-op
4、eration and Marketing Services Agricultural Research Council (Meat Research Institute) British Food Manufacturing Industries Research Association British Industrial Biological Research Association Ltd. Campden Food Preservation Research Association Consumer Standards Advisory Committee of BSI Depart
5、ment of Agriculture and Fisheries for Scotland Department of Agriculture (Government of Northern Ireland) Department of Industry (Laboratory of the Government Chemist)* Flour Milling and Baking Research Association* Food Manufacturers Federation Incorporated* Institute of Brewing Local Authorities C
6、o-ordinating Body of Trading Standards Ministry of Agriculture, Fisheries and Food National Farmers Union National Farmers Union of Scotland Tobacco Advisory Council The organizations marked with an asterisk in the above list, together with the following, were directly represented on the Technical C
7、ommittee entrusted with the preparation of this British Standard: Agricultural Research Council (Rowatt Research Institute) United Kingdom Tea Association Amendments issued since publication Amd. No.Date of issueComments 5061April 1986Indicated by a sideline in the margin Licensed Copy: sheffieldun
8、sheffieldun, na, Wed Dec 06 13:26:51 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6215-2:1981 BSI 12-1999i Contents Page Cooperating organizationsInside front cover National forewordii 1Scope1 2Field of application1 3Reference1 4Definition1 5Principle1 6Reagents and materials1 7Apparatus1 8Sampling
9、1 9Procedure2 10Expression of results3 11Notes on procedure3 12Test report4 Publications referred toInside back cover Licensed Copy: sheffieldun sheffieldun, na, Wed Dec 06 13:26:51 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6215-2:1981 ii BSI 12-1999 National foreword This Part of this British S
10、tandard has been prepared under the direction of the Food and Agriculture Standards Committee. It is identical with ISO 6541 “Agricultural food products Determination of crude fibre content Modified Scharrer method” published in 1981 by the International Organization for Standardization (ISO) and pr
11、epared by Technical Committee 34, Agricultural food products. It is intended to publish further Parts of this British Standard as other methods are agreed internationally and given UK approval. Terminology and conventions. The text of the International Standard has been approved as suitable for publ
12、ication as a British Standard without deviation. Some terminology and certain conventions are not identical with those used in British Standards; attention is especially drawn to the following. Wherever the words “International Standard” appear, referring to this standard, they should be read as “Br
13、itish Standard”. The comma 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. The technical committee has reviewed the provisions of ISO 3310-1:1975, referred to in 6.4 and 7.2, and has decided that the
14、y are acceptable for use in conjunction with this standard. BS 410:1976 “Specification for test sieves” is related to ISO 3310-1. Additional information Water. Water complying with the requirements of BS 3978 “Water for laboratory use” is suitable for use. Sand. Commercially available acid washed sa
15、nd ready for use is suitable in place of sea sand (see 6.4). Drying oven. A drying oven complying with the requirements of BS 2648 “Performance requirements for electrically-heated laboratory drying ovens” will satisfy the requirements of 7.8. Dietary fibre. The method described in this British Stan
16、dard is not suitable for the determination of dietary fibre. NOTECorrect sampling requires most careful attention. Emphasis cannot therefore be too strongly placed on the necessity of obtaining a truly representative sample. Careless or inaccurate practices could lead to misunderstanding and possibl
17、e unwarranted financial adjustment. Samples should be obtained in accordance with the British Standard, if any, relevant to the product concerned. In the case of animal feeding stuffs, attention is drawn to The Feeding Stuffs (Sampling and Analysis) Regulations 1982 which provide guidance and which
18、are to be followed for legislative purposes. 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 itself confer immunity from legal obligatio
19、ns. Cross-reference International StandardCorresponding British Standard ISO 5498:1981BS 6215 Methods of test for agricultural food products Part 1:1981 Determination of crude fibre content (general method) (Identical) Summary of pages This document comprises a front cover, an inside front cover, pa
20、ges i and ii, pages 1 to 4, 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, Wed Dec 06 13:26:51 GM
21、T+00:00 2006, Uncontrolled Copy, (c) BSI BS 6215-2:1981 BSI 12-19991 1 Scope This International Standard specifies a conventional method for the determination of the crude fibre content of agricultural food products. 2 Field of application The method is applicable to cereals and cereal products, as
22、well as to certain products containing less than 1 % of crude fibre, for example yeasts, which are excluded from the field of application of ISO 5498. 3 Reference ISO 5498, Agricultural food products Determination of crude fibre content General method. 4 Definition 4.1 crude fibre content convention
23、ally, the whole of the substances which are insoluble and combustible under the operating conditions described in this International Standard the crude fibre content is expressed as a percentage by mass, referred either to the product as received or to the dry matter content of the product NOTEIn Fr
24、ench, the term “indice dinsoluble dit cellulosique” has been adopted for “crude fibre” rather than the alternative “cellulose brute”. 5 Principle After any necessary grinding and defatting, boiling with a mixture of acetic acid, nitric acid and trichloroacetic acid (Scharrer reagent). Separation and
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- BS-6215-2-1981 ISO-6541-1981 BS 6215 1981 ISO 6541
链接地址:https://www.31doc.com/p-3772497.html