BS 1344-21-1993 ISO 4532-1991.pdf
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1、BRITISH STANDARD BS 1344-21: 1993 ISO 4532:1991 Methods of testing Vitreous enamel finishes Part 21: Determination of the resistance of vitreous enamelled articles to impact: pistol test UDC 666.293:620.178.7 Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 24 06:19:55 GMT+00:00 2006, Uncontrolle
2、d Copy, (c) BSI BS 1344-21:1993 This British Standard, having been prepared under the direction of the Surface Treatments and Coatings Standards Policy Committee, was published under the authority of the Standards Board and comes into effect on 15 October 1993 BSI 07-1999 The following BSI reference
3、s relate to the work on this standard: Committee reference STC/36 Draft for comment 90/50820 DC ISBN 0 580 22335 3 Committees responsible for this British Standard The preparation of this British Standard was entrusted by the Surface Treatments and Coatings Standards Policy Committee (STC/-) to Tech
4、nical Committee STC/36, upon which the following bodies were represented: Agricultural Engineers Association Association of Manufacturers of Domestic Electrical Appliances British Bathroom Council British Steel plc Insitute of Vitreous Enamellers Metal Sink Manufacturers Association Ministry of Defe
5、nce Vitreous Enamel Development Council Amendments issued since publication Amd. No.DateComments Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 24 06:19:55 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 1344-21:1993 BSI 07-1999i Contents Page Committees responsibleInside front cover National for
6、ewordii 1Scope1 2Normative reference1 3Principle1 4Apparatus1 5Test specimens1 6Procedure2 7Expression of results2 8Test report2 Annex A (informative) Calibration and determination of the zero point of the apparatus3 Annex B (informative) Bibliography4 Figure 1 Test apparatus1 Figure A.1 Graph for t
7、he determination of the zero point of two different apparatuses3 Table A.1 Values obtained for two different apparatuses when tested according to A.13 List of referencesInside back cover Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 24 06:19:55 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 134
8、4-21:1993 ii BSI 07-1999 National foreword This Part of BS 1344 has been prepared under the direction of the Surface Treatments and Coatings Standards Policy Committee and is identical with ISO 4532:1991 Vitreous and porcelain enamels Determination of the resistance of enamelled articles to impact P
9、istol test, which was prepared by Technical Committee TC 107, Metallic and other non-organic coatings, of the International Organization for Standardization (ISO), with the active participation and approval of the UK. Further Parts of BS 1344, specifying methods of test of other properties of vitreo
10、us enamels, are in preparation. The standard at present includes the following Parts. Part 1: Determination of resistance to thermal shock of coatings on articles other than cooking utensils; Part 2: Resistance to citric acid at room temperature; Part 3: Determination of resistance to sulphuric acid
11、 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: Determination of resistance to heat; Part 8: Determination of resistance to boiling citric acid; Part 9: Determination
12、 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 12: Production of specimens for testing coatings on sheet steel; Part 13: Production
13、of specimen for testing coatings on cast iron; Part 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 solut
14、ion; Part 18: Determination of fluidity behaviour: 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. Additional information. This test method is suitable only when t
15、esting vitreous enamelled material in flat sheet form (shaped only by rolling). Cross-reference 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 conditions
16、(Identical) Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 24 06:19:55 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 1344-21:1993 BSI 07-1999iii A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correc
17、t application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i to iv, pages 1 to 4, an inside back cover and a back cover. This standard has been updated (see copyrigh
18、t 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, Fri Nov 24 06:19:55 GMT+00:00 2006, Uncontrolled Copy, (c) BSI iv blank Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 24 06:19:
19、55 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO 4532:1991(E) BSI 07-19991 1 Scope This International Standard specifies a test method for determining the resistance of enamelled articles to impact. The method is used as a factory production control test. NOTE 1The pistol test is not intended to be
20、 used for testing the adhesion of the enamel. 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 revisi
21、on, and parties to agreements 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 2746:1973, Vitreous and porc
22、elain enamels Enamelled articles for service under highly corrosive conditions High voltage test. 3 Principle Shooting of a ball-tipped striking bolt of an apparatus operated by adjustable spring tension, against the surface of the test specimen. Evaluation of the point of impact. The load applied t
23、o the striking bolt which with one blow produces visible damage to the enamel, is inversely proportional to the sensitivity of the enamelled article to impact. 4 Apparatus The test apparatus (see Figure 1) consists of a striking bolt with a 5 mm steel ball tip which is shot once against the surface
24、under test by means of a pressure spring (100 mm long, unloaded). The spring load can be continuously adjusted from 0 to 90 N by the power-adjusting sleeve. NOTE 2The newton-metre scale provided on the outside of the apparatus shall only be used as a guide because a non-linear scale can lead to sign
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- BS 1344-21-1993 ISO 4532-1991 1344 21 1993 4532 1991
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