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1、3205-76 I 4851903 0023848 r F-2-7- 1 3 INTERNATIONAL STANDARD IS0 3205-1976 (E) AMENDMENT SLIP Published 1976-10-15 INTERNATIONAL OSGANIZATION FOR STANDARDIZATION *MEXjlFHAPOaHAR OPrAHPi3AUlIR no CTAHAAPTM3AUMI4 *ORGANISATION INTERNATIONALE DE NORMALISATION Preferred test temperatures MODIFICATION T
2、O FOREWORD (Inside front cover) The IS0 member body for Mexico has now expressed its approval of this International Standard. Mexico should therefore be included in the list of countries whose member bodies have approved the document. PROBLEW HARD COPY 8 Copyright International Organization for Stan
3、dardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/28/2007 07:56:19 MDTNo reproduction or networking permitted without license from IHS -,-,- Preferred test temperatu res Tempratures prfrentielles dessai First edition - 1976-07-15 Pri
4、ce based on 2 pages olau4izs Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/28/2007 07:56:19 MDTNo reproduction or networking permitted without license from IHS -,-,- 3205-76 I 4 8 5 3
5、9 0 3 0 0 - FOREWORD IS0 (the International Organization for Standardization) is a worldwide federation of national standards institutes (IS0 Member Bodies). The work of developing International Standards is carried out through IS0 Technical Committees. Every Member Body interested in a subject for
6、which a Technical Committee has been set up has the right to be represented on that Committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. Draft International Standards adopted by the Technical Committees are circulated to the Memb
7、er Bodies for approval before their acceptance as International Standards by the IS0 Council. International Standard IS0 3205 was drawn up by Technical Cpmmittee ISO/TC 125, Enclosures and conditions for testing, and was circulated to the Member Bodies in June 1975. It has been approved by the Membe
8、r Bodies of the following countries Australia Austria Belgium Finland France Germany Hungary India Spain Ireland Turkey Italy United Kingdom New Zealand U.S.A. Poland U .S.S. R. Romania South Africa, Rep. of The Member Body of the following country expressed disapproval of the document on technical
9、grounds : Sweden O International Organization for Standardization, 1976 Printed in Switzerland Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/28/2007 07:56:19 MDTNo reproduction or netw
10、orking permitted without license from IHS -,-,- 1 SCOPE AND FIELD OF APPLICATION This International Standard specifies preferred temperatures for use in testing. The aim of this International Standard is to rationalize, harmonize and simplify the choice of temperatures in the future. In drawing up t
11、est methods and specifications, the tempera- tures chosen should, as far as possible, be taken from these preferred temperatures. It is permissible nevertheless to use other temperatures when this is considered essential for technical reasons. A list of additional temperatures taken from internation
12、al technical documents is given in an annex. These tempera- tures either represent existing practice or are chosen to meet particular technical needs. It is hoped for the future that consideration will be given to using the temperatures given in the lists in clause 2 as far as technical consideratio
13、ns permit when revising international documents. If no technically suitable temperature exists in the lists in clause 2, consideration should next be given to temperatures in related fields in the list in the annex. 2 PREFERRED TEMPERATURES 2.1 Temperatures of standard atmospheres for conditioning a
14、nd/or testing (according to IS0 554,Standardatmospheres for conditioning and/or testing - Specifications) 23 O C 27 O C 20 O c 2.2 Preferred test temperatures (in addition to the temperatures of the standard atmospheres for conditioning and/or testing, see 2.1) Degrees Celsius - 269 - 196 see note -
15、 161 - 70 1 - 55 - 40 - 25 - 10 note 2 0 see +5 25 40 55 70 1“ 1 see note 2 105 125 150 175 200 225 250 275 300 350 400 450 500 600 700 800 900 1 O00 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for
16、 Resale, 04/28/2007 07:56:19 MDTNo reproduction or networking permitted without license from IHS -,-,- IS0 3205-1976 (E) 3 TOLERANCES In the absence of special provisions, particularly concerning closer tolerances, the following tolerances should be used : Below - 75 O C , the tolerances depend esse
17、ntially on the equipment used. From - 75 O C to 1 O00 O C , the tolerances are given in the adjacent table. In general, these tolerances are sufficient. However, closer or, exceptionally, wider tolerances may be specified. 3205-76 For the temperatures of standard atmospheres for conditioning and/or
18、testing, I C 0 554 specifies an ordinary tolerance of 2 2 O C and a reduced tolerance of f 1 OC. Temperatures Tolerances 0 4 8 G io5 i2 105 8 G 200 13 200 e G 400 A 5 i 750 8 1 O00 i -1 ANN EX LIST OF TEMPERATURES USED IN PARTICULAR FIELDS Degrees Celsius - 65 - 62 - 54 - 50 - 35 - 20 - 18 +2 10 15
19、30 37 38 45 50 60 80 90 120 130 140 155 160 180 190 220 230 31 5 320 630 750 950 These temperatures are taken from documents prepared by the following IS0 Technical Committees : TC 6 - 17 - 20 - 35 - 38 - 45 -El - 71 - 77 - 106 - 122 and by the following Committees of the IEC : 15 - 50. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/28/2007 07:56:19 MDTNo reproduction or networking permitted without license from IHS -,-,-