BS-7529-1991.pdf
《BS-7529-1991.pdf》由会员分享,可在线阅读,更多相关《BS-7529-1991.pdf(8页珍藏版)》请在三一文库上搜索。
1、BRITISH STANDARD BS 7529:1991 Specification for Desiccant activated clay Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 13:54:21 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 7529:1991 This British Standard, having been prepared under the direction of the Chemi
2、cals Standards Policy Committee, was published under the authority of the Standards Board and comes into effect on 20 December 1991 BSI 11-1999 The following BSI references relate to the work on this standard: Committee reference CIC/2 Draft for comment 91/51280 DC ISBN 0 580 20160 0 Committees resp
3、onsible for this British Standard The preparation of this British Standard was entrusted by the Chemicals Standards Policy Committee (CIC/-) to Technical Committee CIC/2, upon which the following bodies were represented: Chemical Industries Association Ministry of Defence Royal Society of Chemistry
4、Society of British Aerospace Companies Ltd. Society of Environmental Engineers Amendments issued since publication Amd. No.DateComments Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 13:54:21 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 7529:1991 BSI 11-1999i
5、Contents Page Committees responsibleInside front cover Forewordii 1Scope1 2Sampling1 3Moisture content1 4pH1 5Water-soluble chlorides1 6Water-soluble sulfates1 7Adsorptive capacity1 8Particle size1 9Friability and dust1 10Packaging1 11Marking1 Table 1 Chemical and physical properties2 Publication(s)
6、 referred toInside back cover Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 13:54:21 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 7529:1991 ii BSI 11-1999 Foreword This British Standard has been prepared under the direction of the Chemicals Standards Policy C
7、ommittee. This British Standard applies to material to be used primarily in packaging. 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 i
8、tself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, pages 1 and 2, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will b
9、e indicated in the amendment table on the inside front cover. Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 13:54:21 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 7529:1991 BSI 11-19991 1 Scope This British Standard specifies requirements for desiccant activat
10、ed clay primarily intended for use in packaging. NOTEThe titles of the publications referred to in this British Standard are listed on the inside back cover. 2 Sampling Test samples shall be prepared in accordance with BS 3482-1. For preparation of the dried sample, 75 g of the laboratory sample sha
11、ll be dried for 4 h in an oven controlled at 145 2.5 C. NOTEDesiccant activated clay is highly hygroscopic and should be exposed to the atmosphere for the minimum possible period of time during sampling. 3 Moisture content When determined in accordance with BS 3482-2, the moisture content dried at 1
12、45 2.5 C for 4 h shall not exceed the value given in Table 1. 4 pH When determined in accordance with BS 3482-3, the pH shall be not lower and not higher than the values given in Table 1. 5 Water-soluble chlorides When determined in accordance with BS 3482-4, the content of water-soluble chlorides s
13、hall not exceed the value given in Table 1. 6 Water-soluble sulfates When determined in accordance with BS 3482-5, the content of water-soluble sulfates shall not exceed the value given in Table 1. 7 Adsorptive capacity When determined at 50 % r.h. and at 25 C in accordance with method A of BS 3482-
14、6:1991, the adsorptive capacity of material dried at 145 2.5 C for 4 h shall be not less than the value given in Table 1. 8 Particle size When determined and expressed in accordance with BS 3482-7, the particle size range shall be as given in Table 1. 9 Friability and dust When determined in accorda
15、nce with BS 3482-11, the level of friability and dust shall not exceed the value given in Table 1. 10 Packaging The material shall be supplied in sound, clean and dry containers, which are airtight and capable of being resealed so as to avoid absorption of moisture from the atmosphere. NOTEThe follo
16、wing packing materials are recommended. a) For bulk material: 1) steel drums with sealing gaskets; 2) fibreboard drums or boxes with closeable liners of aluminium foil laminate or polyethylene. b) For small packages: metal tubes with screw caps. 11 Marking Containers and packaging shall be marked at
- 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 7529 1991
链接地址:https://www.31doc.com/p-3737313.html