INTERNATIONAL STANDARD IEC 60825-1Edition 1.22001-08
International Electrotechnical Commission IEC 2001 – Copyright - all rights rerved
No part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical,
including photocopying and microfilm, without permission in writing from the publisher.
International Electrotechnical Commission 3, rue de Varembé Geneva, Switzerland
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Telefax: +41 22 919 0300e-mail: inmail@iec.ch IEC web site www.iec.ch
– 2 –60825-1 © IEC:1993+A1:1997
+A2:2001(E)
CONTENTS FOREWORD (6)
SECTION ONE – GENERAL
1Scope and object (8)
1.1Scope (8)
1.2Object (9)
2Normative references (9)
3Definitions (10)
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SECTION TWO – MANUFACTURING REQUIREMENTS
4Engineering specifications (20)
4.1General remarks (20)
4.2Protective housing (20)
4.3Access panels and safety interlocks (20)
4.4Remote interlock connector (21)
4.5Key control (21)
4.6Lar radiation emission warning (21)
4.7Beam stop or attenuator (22)
4.8Controls (22)
4.9Viewing optics (22)
4.10Scanning safeguard (22)
4.11Alignment aids (22)killers
4.12"Walk-in" access (22)
4.13Environmental conditions (22)
4.14Protection against other hazards (23)
5Labelling (23)
5.1General (23)
5.2Class 1 (23)
5.3Class 2 (24)
5.4Class 3R (24)
5.5Class 3B (24)
5.6Class 4 (24)
5.7Aperture label (25)
5.8 Radiation output and standards information (25)
5.9Labels for access panels (25)
5.10Warning for invisible lar radiation (26)
5.11Warning for visible lar radiation (26)
5.12Warning for LED radiation (26)
6Other informational requirements (27)
6.1Information for the ur (27)
6.2Purchasing and rvicing information (27)
60825-1 © IEC:1993+A1:1997– 3 –
+A2:2001(E)
7Additional requirements for specific lar products (28)
7.1Medical lar products (28)
7.2Other parts of the standard ries IEC 60825 (28)
8Classification (28)
8.1Introduction (28)
8.2Description of lar class (28)
8.3Classification responsibilities (29)
8.4Classification rules (29)
9Measurements for classification (32)
9.1Tests (32)
9.2Measurement of lar radiation (33)
9.3Measurement geometry (34)
SECTION THREE – USER'S GUIDE
10Safety precautions (41)
10.1General (41)
zxing10.2U of remote interlock connector (41)
10.3Key control (41)
10.4Beam stop or attenuator (41)
10.5Warning signs (42)
10.6Beam paths (42)
10.7Specular reflections (42)
10.8Eye protection (42)
10.9Protective clothing (43)
10.10Training (44)
10.11Medical supervision (44)
11Hazards incidental to lar operation (44)
11.1Atmospheric contamination (44)
11.2Collateral radiation hazards (44)
11.3Electrical hazards (45)
11.4Cryogenic coolants (45)
11.5Materials processing (45)
11.6Other hazards (45)
12Procedures for hazard control (45)
12.1General (45)
12.2Hazard evaluation for lars ud outdoors (46)
12.3Personal protection (46)
12.4Lar demonstrations, displays and exhibitions (46)
12.5Laboratory and workshop lar installations (47)
12.6Outdoor and construction lar installations (48)
13Maximum permissible exposures (49)
13.1General remarks (49)
13.2Limiting apertures (50)
13.3Repetitively puld or modulated lars (50)
13.4Measurement conditions (51)
13.5Extended source lars (52)
– 4 –60825-1 © IEC:1993+A1:1997
+A2:2001(E) Annex A (informative) Examples of calculations (68)
Annex B (informative) Biophysical considerations (96)
Annex C (informative) Bibliography (105)
Annex D (informative) Summary tables (106)
Annex E (informative) High power lar considerations particularly appropriate to
materials-processing lar products (109)
Annex F (informative) Related IEC Standards (112)
Annex G (informative) Information to be provided by manufacturers of LEDs (113)jackknife>五年级数学应用题
Annex H (informative) Overview of associated parts of IEC 60825 (116)
Figure 1 – Correction factor C1 for emission durations from 10–9s to 10 s (55)
Figure 2 – Breakpoint T1 for λ = 302,5 nm to 315 nm (55)
Figure 3 – Correction factor C2for λ = 302,5 nm to 315 nm (55)
Figure 4 – Breakpoint T2for source size α ranging from 0 mrad to more than 100 mrad (56)
Figure 5 – Correction factor C3for λ = 400 nm to 600 nm (57)
Figure 6 – Correction factor C4 for λ = 700 nm to 1 400 nm (58)
Figure 7 – Correction factor C5 shown for N (number of puls) between 1 and 100 000 (59)
Figure 8 – Correction factor C7 for λ = 1 050 nm to 1 400 nm (60)
Figure 9a – MPE for direct ocular exposure to ultra-violet radiation at lected
emission durations from 10–9s to 103 s (61)
Figure 9b – MPE for direct ocular exposure to ultra-violet radiation for exposure
durations from 10–9s to 103 s at lected wavelengths (61)
Figure 10a – MPE for direct ocular exposure to protect against thermal injury
(λ = 400 nm to 700 nm) for exposure durations greater than 0,1 s for lected source
sizes between 1,5 mrad and 100 mrad (62)
Figure 10b – MPE for direct ocular exposure (C6= 1) for exposure durations greater
than 1 s for lected wavelengths between 700 nm and 1 050 nm (62)
Figure 11a – MPE for ocular exposure (λ = 400 nm to 700 nm) to a single exposure
at lected angular subtens for the source (63)
Figure 11b – MPE for ocular exposure at lected wavelengths from 400 nm
to 1 400 nm and C6= 1 (63)
Figure 12a – AEL for Class 1 ultra-violet lar products for lected emission durations
中译英翻译在线from 10–9s to 103 s (64)
Figure 12b – AEL for Class 1 ultra-violet lar products for emission durations
from 10–9 s to 103 s at lected wavelengths (64)
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Figure 13 – AEL for Class 1 visible and lected infra-red lar products (ca C6 = 1) (65)
Figure 14 – Warning label – Hazard symbol (66)
Figure 15 – Explanatory label (67)
Figure 16 – Measurement t-up to obtain a well-defined angle of acceptance – 16a:
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by imaging the apparent source onto the plane of the field stop – 16b: by placing a
circular aperture or a mask (rving as field stop) clo to the source (36)
Figure A.1 – Lar diode array with two groupings (74)
differenFigure B.1 – Anatomy of the eye (103)
Figure B.2 – Diagram of lar-induced damage in biological systems (104)
60825-1 © IEC:1993+A1:1997– 5 –
+A2:2001(E)
Table 1 – Accessible emission limits for Class 1 and Class 1M lar products (37)
Table 2 – Accessible emission limits for Class 2 and Class 2M lar products (38)
Table 3 – Accessible emission limits for Class 3R lar products (39)
Table 4 – Accessible emission limits for Class 3B lar products (40)
Table 5 – Additivity of effects on eye (o) and skin (s) of radiation of different spectral regions (49)
Table 6 – Maximum permissible exposure (MPE) at the cornea for direct exposure
to lar radiation (53)
Table 7 – Aperture diameter applicable to measuring lar irradiance and radiant exposure (54)
Table 8 – Maximum permissible exposure (MPE) of skin to lar radiation (54)
Table 9 – Times T i below which pul groups are summed up (32)
Table 10 – Diameters of the measurement apertures and measurement distances (35)
Table B.1 – Summary of pathological effects associated with excessive exposure to light (98)
Table B.2 – Explanation of measurement apertures applied to the MPEs (102)
Table D.1 – Summary of the physical quantities ud in this part 1 (106)
Table D.2 – Summary of manufacturer's requirements (107)
Table D.3 – Summary of ur precautions (108)
Table H.1 – Overview of additional data in associated parts of IEC 60825 (115)
