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1、BRITISH STANDARD BS ISO 11884-1:2006 Optics and photonics Minimum requirements for stereomicroscopes Part 1: Stereomicroscopes for general use ICS 37.020 ? Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 13:26:52 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO 11884-1:2006 This British Stan
2、dard was published under the authority of the Standards Policy and Strategy Committee on 9 February 2006 BSI 9 February 2006 ISBN 0 580 47811 4 National foreword This British Standard reproduces verbatim ISO 11884-1:2006 and implements it as the UK national standard. It supersedes BS 7012-10-10.1:19
3、98 which is withdrawn. The UK participation in its preparation was entrusted by Technical Committee which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and kee
4、p UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international publications refe
5、rred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provi
6、sions of a contract. Users are responsible for its correct 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, the ISO title page, pages ii and iii, a blank page, pag
7、es 1 to 5 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments CPW/172, Optics and photonics, to Subcommittee CPW/172/5, Microscopes, Licensed Copy: sheffieldun sheffieldun, na, Su
8、n Nov 26 13:26:52 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Reference number ISO 11884-1:2006(E) INTERNATIONAL STANDARD ISO 11884-1 Second edition 2006-01-15 Optics and photonics Minimum requirements for stereomicroscopes Part 1: Stereomicroscopes for general use Optique et photonique Exigences min
9、imales pour les stromicroscopes Partie 1: Stromicroscopes usage gnral BS ISO 11884-1:2006 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 13:26:52 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ii Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 13:26:52 GMT+00:00 2006, Uncontrolled Copy, (
10、c) BSI iii Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject fo
11、r which a technical committee has been established 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. ISO collaborates closely with the International Electrotechnical Commission (IEC) on
12、all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees ar
13、e circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held r
14、esponsible for identifying any or all such patent rights. ISO 11884-1 was prepared by Technical Committee ISO/TC 172, Optics and photonics, Subcommittee SC 5, Microscopes and endoscopes. This second edition cancels and replaces the first edition (ISO 11884-1:1998), which has been technically revised
15、. ISO 11884 consists of the following parts, under the general title Optics and photonics Minimum requirements for stereomicroscopes: Part 1: Stereomicroscopes for general use Part 2: High performance microscopes BS ISO 11884-1:2006 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 13:26:52 GMT
16、+00:00 2006, Uncontrolled Copy, (c) BSI blank Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 13:26:52 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 1 Optics and photonics Minimum requirements for stereomicroscopes Part 1: Stereomicroscopes for general use 1 Scope This part of ISO 11884 specifie
17、s minimum requirements for stereomicroscopes used mainly for visual observation for general use. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest
18、edition of the referenced document (including any amendments) applies. ISO 9022-1, Optics and optical instruments Environmental test methods Part 1: Definitions, extent of testing ISO 9022-2, Optics and optical instruments Environmental test methods Part 2: Cold, heat and humidity ISO 9022-3, Optics
19、 and optical instruments Environmental test methods Part 3: Mechanical stress ISO 10934-1, Optics and optical instruments Vocabulary for microscopy Part 1: Light microscopy ISO 11883, Optics and optical instruments Microscopes Marking of stereomicroscopes ISO 15227, Optics and optical instruments Mi
20、croscopes Testing of stereomicroscopes IEC 61010-1, Safety requirements for electrical equipment for measurement, control, and laboratory use Part 1: General requirements CIE 10526, CIE Standard Illuminants for Colorimetry 3 Terms and definitions For the purposes of this part of ISO 11884, the terms
21、 and definitions given in ISO 10934-1 apply. 4 Requirements The following are minimum requirements. 4.1 Optical and mechanical specifications The specifications given in Table 1 shall apply. Testing shall be done in accordance with 5.1. BS ISO 11884-1:2006 Licensed Copy: sheffieldun sheffieldun, na,
22、 Sun Nov 26 13:26:52 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO 11884-1:2006 2 Table 1 Requirements for optical and mechanical specifications Criterion Requirements Tolerance of total magnification 10 % Difference in magnification between left and right optical systems u 2 % vertical u 20 hor
23、izontal b convergence u 45 Difference in axis between left and right optical systems a divergence u 10 Horizontal difference in the centre of the primary image between left and right optical systems c u 0,33 mm vertical u 0,2 mm horizontal e divergence u 0,4 mm Difference in the centre of the eyepie
24、ce diaphragm between left and right optical systems d convergence u 0,4 mm Lateral shift of focusing plane by magnification change 0,4 mm diameter f Focus difference between left and right optical systems u 1,5 DF g Difference in imaging rotation between left and right image u 3 Minimum range for in
25、terpupillary distance 55 mm to 75 mm Difference in exit pupil height between left and right optical system at the equal dioptre adjustments u 1,5 mm Resolution in the centre of the field W 2 000 NA line pairs/mm h a To be measured with a 10 eyepiece adjusted at 0 D. b This requirement applies to tho
26、se stereomicroscopes where the mechanical axes of the eyepieces are parallel to each other due to the design. c This requirement is only valid when the horizontal difference in axis does not apply. d To be measured on the primary image plane of the stereomicroscope to be tested. e This requirement a
27、pplies to those stereomicroscopes where the mechanical axes of the eyepieces are not parallel due to the design. f The displacement of a centred structure shall be inside a centred circle of 0,4 mm diameter in the primary image plane. g Depth of field (in object space) DF, expressed in millimetres,
28、is given by: (=)= (=) F 2 TOT VIS 1 7 NA 2 NA D M = =+= = where is the wavelength in millimetres; NA is the numerical aperture; MTOT VIS is the total visual magnification. h To be measured with the standard illuminant A in accordance with CIE 10526. 4.2 Environmental conditions Testing shall be done
29、 in accordance with 5.2. Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 13:26:52 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO 11884-1:2006 3 4.2.1 Conditions of use The functioning of stereomicroscopes given in the relevant instrument specifications, shall be ensured under the environme
30、ntal conditions given in Table 2. Under these conditions all optical and mechanical requirements apply, if necessary with the inclusion of correction tables. Table 2 Conditions of use Criterion Environmental condition Temperature 10 C to 40 C Relative humidity u 85 % Atmospheric pressure 700 hPa to
31、1 060 hPa Shock 10 g for the duration of 6 ms 4.2.2 Storage conditions After being exposed to the conditions given in Table 3, stereomicroscopes shall meet the instrument specifications under conditions of use as specified in 4.2.1. Table 3 Storage conditions Criterion Environmental condition Temper
32、ature 10 C to 55 C Relative humidity u 95 % Atmospheric pressure 700 hPa to 1 060 hPa 4.2.3 Transport conditions The transport clause is recommended for all packing requirements, but the following conditions shall apply when compliance to the transport clause of this part of ISO 11884 is claimed by
33、the manufacturer. After exposure of the stereomicroscopes in their original packing to the conditions given in Table 4, the stereomicroscopes shall meet the instrument specifications under conditions of use as specified in 4.2.1. Table 4 Transport conditions Criterion Environmental condition Tempera
34、ture 40 C to 70 C Relative humidity u 100 % Atmospheric pressure 500 hPa to 1 060 hPa Vibration, sinusoidal 10 Hz to 500 Hz; 0,5 g Shock 30 g for the duration of 6 ms Bump 10 g for the duration of 6 ms Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 13:26:52 GMT+00:00 2006, Uncontrolled Copy,
35、 (c) BSI 4 4.3 Safety Testing shall be done in accordance with 5.3. IEC 61010-1 shall apply. 5 Test methods All tests specified in this part of ISO 11884 are type tests. 5.1 Testing of optical and mechanical specifications The requirements of 4.1 are tested in accordance with the test methods of ISO
36、 15227. Measurements shall be carried out according to general rules of statistical evaluation. 5.2 Testing of the environmental conditions The requirements of 4.2 shall be tested in accordance with the test methods of the relevant part of ISO 9022 given in Table 5. 5.3 Testing of the safety Tests i
37、n accordance with IEC 61010-1 apply. 6 Accompanying documents The stereomicroscope shall be accompanied by documents containing instructions for use, cleaning and maintenance. 7 Marking Marking shall be done in accordance with ISO 11883. BS ISO 11884-1:2006 Licensed Copy: sheffieldun sheffieldun, na
38、, Sun Nov 26 13:26:52 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 5 Table 5 Environmental tests Conditions Test a In accordance with Remarks ISO 9022-11-01-2 (10 2) C / 16 h dry heat ISO 9022-11-02-2 (40 2) C / 16 h Environmental conditions of use ISO 9022-12-01-2 (40 2) C / 90 % to 95 % RH / 16 h IS
39、O 9022-2 damp heat ISO 9022-10-02-1 (10 3) C / 16 h cold ISO 9022-11-03-1 (55 2) C / 16 h dry heat Storage conditions ISO 9022-12-01-1 (40 2) C / 90 % to 95 % RH / 16 h ISO 9022-2 damp heat ISO 9022-10-08-0 (40 3) C / 16 h cold ISO 9022-11-05-0 (70 2) C / 6 h dry heat ISO 9022-16-01-0 (23 2) C / 80
40、% to 85 % RH / 5 cycles (40 2) C / 90 % to 95 % RH / 5 cycles ISO 9022-2 damp heat, cyclic ISO 9022-30-03-0 30 g / 6 ms shock ISO 9022-31-01-0 10 g / 6 ms / 1 000 shocks bump Transport conditions ISO 9022-36-02-0 1 g / 10 Hz to 2 000 Hz / 2 cycles ISO 9022-3 sinusoidal vibration a The environmental
41、test code reads as follows: ISO 9022-xx-yy-z ISO 9022 environmental International Standard xx: conditioning method _ yy: degree of severity _ z: state of operation of the instrument _ The figures “xx” in the conditioning methods listed above have the following meaning: 10: cold 11: dry heat 12: damp
42、 heat 13: condensed water 14: slow temperature change 16: damp heat, cyclic 30: mechanical stress - shock 31: mechanical stress - bump 36: mechanical stress - sinusoidal vibration. Severity grades “yy” are given in the relevant part of ISO 9022. The figure “z” of the state of operation means: 0: spe
43、cimen in its normal transport and/or storage container as provided by the manufacturer. 1: specimen unprotected, ready for operation, power supply not connected. 2: specimen in operation during the test as specified in the relevant specification. BS ISO 11884-1:2006 Licensed Copy: sheffieldun sheffi
44、eldun, na, Sun Nov 26 13:26:52 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO 11884-1:2006 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe an
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