EN 12222-1997 en Footwear - Standard Atmospheres for Conditioning and Testing of Footwear and Components for Footwear《鞋类 鞋类和鞋类部件修理和测试用标准大气压》.pdf

1、STD.SI BS EN 12222-ENGL 1777 BH Lb24bb7 Obb4584 BRITISH STANDARD Footwear - Standard atmospheres for conditioning and testing of footwear and components for footwear TTb BS EN 12222 : 1997 The European Standard EN 12222 : 1997 has the status of a British Standard ICs 61.060 BS EN 12222 : 1997 This B

2、ritish Standard, having been prepared under the direction of the Sector Board for Materiais and Chemicals, was published under the authority of the Standards Board and comes into effect on 15 December 1997 National foreword This British Standard is the English language version of EN 12222 : 1997 pub

3、lished by the European Committee for Standarchation (CEN). The UK participation in its preparation was entrusted to Technical Committee TCY69, Footwear and leather, which has the responsibility to: - aid enquirers to understand the text; - present to the responsible European committee any enquiries

4、on the interpretation, or proposals for change, and keep the UK interests informed; - monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British

5、 Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled ?International Standards Correspondence Index?, or by using the ?Find facility of the BSI Standards Electronic Catalogue. Compliance w

6、ith 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, the EN title page, pages 2 to 4, an inside back cover and a back cover. Amendments issued since publication Amd. No. I Date I Text affected

7、 O BSI 1997 ISBN O 680 28573 1 STD.BS1 BS EN 12222-ENGL 1997 lb2Ybb9 00b458b 879 EUROPEAN sTANDAR;D NORME EuROP - relative humidity (r.h.) 2.2 conditioning This tem refers to the operation as a whole designed to bring a sample or test specimen, before testing, into a specified condition in relation

8、to temperature and humidity, by keeping it for a given period of time in the conditioning atmosphere. 2.3 conditioning atmosphere The atmosphere in which a sample or test specimen is kept before being subjected to test. It is characterized by specified values for one or more of the parameters temper

9、atwe, relative humidity which are kept within the prescribed tolerances for a given period of time. NOTE 1. The conditioning can be done in the laboratov, in a special enclosure termed the conditioning chamber or in the test chamber. NOTE 2. The chosen values and period of time depend on the nature

10、of the sample or test specimen to be tested. Page 3 EN 12222:1997 2.4 test atmosphere The atmosphere to which a sample or test specimen is exposed throughout the test. It is characterized by specified dues for one or more of the parameters temperature, relative humidity and pressure, which are kept

11、within the prescribed tolerances. NOTE. The test may be carried out in the laboratory, in a special chamber termed the test chamber, or in the conditioning chamber, the choice depending on the nature of the test specimen and on the test itself. 3 General requirements The standard atmospheres and tol

12、erances for conditioning and testing of footwear and footwear component properties are given in clause 4 and clause 6 respectively When the conditioning is carried out at 23 “C and 50 % r.h. it will not be necessary to indicate this in the test report. In any other case, the ambient conditions must

13、be explicitly stated in the test report. 4 Standard atmospheres 5 Tolerances Table 2. Tolerances) Tolerances humidity f 5 21231 I +2 Ordinary (normal) tolerances ) These tolerances should also be used for other atmospheres if it is specified in the relevant test method. *) The resulting limits of re

14、lative humidity, with ordinary tolerances, therefore: 3, The uncertainty shall not exceed f 3 %. 45 % to 55 % and 60 % to 70 % respectively. O BSI 1997 STD.BS1 BS EN L2222-ENGi 1997 IH Lb24bb9 Obb4589 588 Page 4 EN 12222 : 1997 6 Conditioning The conditioning atmospheres shall be in accordance with

15、the standard atmospheres (see clause 4). The period of conditioning shall be stated in the relevant specifications for the component. 7 Testing Unless otherwise specified in the relevant European Standard, the test specimens shall be tested in the same atmosphere as that in which they have been cond

16、itioned. In aii cases, the test shall be carried out immediately after removal of the test specimen from the conditioning chamber. O BSI 1997 BS EN 12222 : 1997 I BSI 389 Chiswick High Road London w4 4AL BSI - British Standards Institution BSI is the independent national body responsible for prepari

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