BS 1344-12-1996 ISO 2723-1995.pdf
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1、BRITISH STANDARD BS 1344-12: 1996 ISO 2723: 1995 Methods of testing vitreous enamel finishes Part 12: Production of specimens for testing coatings on sheet steel ICS 25.220.50 Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 24 06:20:04 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 1344-12:1996 T
2、his British Standard, having been prepared under the direction of the Sector Board for Matrerials and Chemicals, was published under the authority of the Standards Board and comes into effect on 15 May 1996 BSI 08-1999 First published as BS 1344-12 January 1976 Second edition May 1996 The following
3、BSI references relate to the work on this standard: Committee reference STI/36 Draft for comment 94/109895 DC ISBN 0 580 25860 2 Committees responsible for this British Standard The preparation of this British Standard was entrusted to Technical Committee STI/36, Vitreous enamel finishes, upon which
4、 the following bodies were represented: Agricultural Engineers Association Association of Manufacturers of Domestic Electrical Appliances British Bathroom Council British Iron and Steel Producers Association Institute of Vitreous Enamellers Metal Sink Manufacturers Association Vitreous Enamel Develo
5、pment Council Amendments issued since publication Amd. No.DateComments Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 24 06:20:04 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 1344-12:1996 BSI 08-1999i Contents Page Committees responsibleInside front cover National forewordii 1Scope1 2Normative
6、 references1 3Shape and dimensions1 4Production of specially prepared specimens1 5Specimens from production articles2 List of referencesInside back cover Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 24 06:20:04 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 1344-12:1996 ii BSI 08-1999 National
7、 foreword This Part of BS 1344 been prepared by Technical Committee STI/36 and is identical with ISO 2723:1995 Vitreous and porcelain enamels for sheet steel Production of specimens for testing, published by the International Organization for Standardization (ISO). It supersedes BS 1344-12:1975 whic
8、h is withdrawn. The standard at present includes the following Parts. Part 1: Determination of resistance to thermal shock coatings on articles other than cooking utensils and fabricated sheet steel components; Part 2: Resistance to citric acid at room temperature; Part 3: Determination of resistanc
9、e to sulphuric acid at room temperature; Part 4: Resistance to abrasion; Part 5: Determination of resistance to hot detergent solutions used for washing textiles; Part 6: Resistance to alkali; Part 7: Determinaiton of resistance to heat; Part 8: Determination of resistance to boiling citric acid; Pa
10、rt 9: Determination of resistance to boiling water and water vapour; Part 10: Determination of resistance to condensing hydrochloric acid vapour; Part 11: High voltage test for articles for use under highly corrosive conditions; Part 13: Production of specimens for testing coatings on cast iron; Par
11、t 14: Apparatus for testing with acid and neutral liquids and their vapours; Part 15: Apparatus for testing with alkaline liquids; Part 16: Resistance to thermal shock of coatings on cooking utensils; Part 17: Resistance to hot sodium hydroxide solution; Part 18: Determination of fluidity behaviour:
12、 fusion flow test; Part 19: Apparatus for determination of resistance to hot detergent solutions used for washing textiles; Part 20: Low voltage test for detecting and locating defects; Part 21: Determination of the resistance of vitreous enamelled articles to impact: pistol test; Part 22: Determina
13、tion of resistance to thermal shock of coatings for fabricated sheet steel components such as burners and pan supports for cookers. 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. Com
14、pliance with a British Standard does not of itself confer immunity from legal obligations. Cross-references International StandardCorresponding British Standard ISO 2746:1973BS 1344 Methods of testing vitreous enamel finishes Part 11:1975 High voltage test for articles for use under highly corrosive
15、 conditions (Identical) 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 be indicated in the ame
16、ndment table on the inside front cover. Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 24 06:20:04 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 1344-12:1996 BSI 08-19991 1 Scope This International Standard specifies a method for the production of specimens suitable for testing vitreous and por
17、celain enamels for sheet steel and enamelled sheet steel articles. When the loss in the mass per unit area of the enamel coating is to be determined quantitatively, specimens specially produced according to clause 4 shall be used, as specimens cut from enamelled articles (clause 5) may reduce the ac
18、curacy of the test method. 2 Normative reference The following standard contains provisions which, through reference in this text, constitute provisions of this International Standard. At the time of publication, the edition indicated was valid. All standards are subject to revision, and parties to
19、agreement based on this International Standard are encouraged to investigate the possibility of applying the most recent edition of the standard indicated below. Members of IEC and ISO maintain registers of currently valid International Standards. ISO 2746:, Vitreous and porcelain enamels Enamelled
20、articles for service under highly corrosive conditions High voltage test1). 3 Shape and dimensions of specimens The specimens shall be flat, enamelled, circular or square plates of steel sheet with a diameter of 105 mm 2 mm or a side length of 105 mm 5 mm. NOTE 1The mass of specimens prepared accord
21、ing to this International Standard is generally less than 200 g. 4 Production of specially prepared specimens 4.1 Specification of specimen The sheet steel upon which the enamel is applied shall be of enamelling quality steel, the thickness of which shall be between 1 mm and 2 mm. For the testing of
22、 direct-on cover coat enamels, the metal shall be of low carbon enamelling quality steel, i.e. 0,005 % C max., or other type recognized as being suitable for this process. It may be preferable to hang the specimens during weighing and enamelling; for this purpose a hole of approximately 2,5 mm diame
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- BS 1344-12-1996 ISO 2723-1995 1344 12 1996 2723 1995
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