GB/T 20145-2006 PDF English
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| GB/T 20145-2006 | English | 750 |
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Photobiological safety of lamps and lamp systems
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GB/T 20145-2006: Photobiological safety of lamps and lamp systems---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT20145-2006
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 29.140
K 70
GB/T 20145-2006 / CIE S 009/E.2002
Photobiological Safety of Lamps and Lamp Systems
(CIE S 009/E.2002, IDT)
Issued on. MARCH 6, 2006
Implemented on. NOVEMBER 1, 2006
Issued by. General Administration of Quality Supervision, Inspection and
Quarantine;
Standardization Administration of the People’s Republic of China.
Table of Contents
Foreword... 3
Introduction... 4
1 Scope... 5
2 Normative References... 5
3 Definitions, Symbols and Abbreviations... 5
4.Exposure Limits... 14
5 Measurement of Lamps and Lamp Systems... 26
6 Lamp Classification... 35
Annex A (Informative) Summary of Biological Effect... 39
Annex B (Informative) Measurement Method... 48
Annex C (Informative) Uncertainty Analysis... 53
Bibliography... 55
Foreword
This Standard equivalently adopted CIE S 009/E.2002 Photobiological Safety of Lamps and
Lamp Systems (English version).
In addition, this Standard made the following editorial modifications.
a) Change “this International Standard” into “this Standard”;
b) Use decimal point “.” to replace the comma “,” that is used as decimal point;
c) Delete the Foreword of CIE S 009/E.2002.
The Appendixes A, B, and C of this Standard are informative.
This Standard was proposed by China National Light Industry Council.
This Standard shall be under the jurisdiction of National Technical Committee on Lighting
Appliances of Standardization Administration of China (SAC/TC 224).
Drafting staffs of this Standard. National Lighting Test Center (Beijing); and Zhejiang
University SENSING Instruments Co., Ltd.
Chief drafting staffs of this Standard. Zhang Ying, Hua Shuming, Mu Tongsheng.
This Standard is first-time formulated.
1 Scope
This Standard gives guidance for evaluating the photobiological safety of lamps and lamp
systems including luminaires. Specifically, it specifies the exposure limits, reference
measurement technique and classification scheme for the evaluation and control of
photobiological hazards from all electrically powered incoherent broadband sources of optical
radiation, including LEDs but excluding lasers, in the wavelength range from 200 nm through
3000 nm.
2 Normative References
The provisions in following documents become the provisions of this Standard through
reference in this Standard. For dated references, the subsequent amendments (excluding
corrigendum) or revisions do not apply to this Standard, however, parties who reach an
agreement based on this Standard are encouraged to study if the latest versions of these
documents are applicable. For undated references, the latest edition of the referenced document
applies.
CIE 17.4.1987 International lighting vocabulary (ILV) – Joint publication IEC/CIE
3 Definitions, Symbols and Abbreviations
For the purposes of this standard, the following definitions, symbols and abbreviations apply.
Visual angle subtended by the apparent source at the eye of an observer or at the point of
measurement. In this Standard, subtended angles are denoted by the full included angle, not the
half angle.
4.Exposure Limits
The exposure limits in this standard apply to continuous sources where the exposure duration
is not less than 0.01 ms and not more than any 8-hour period, and should be used as guides in
the control of exposure. The values should not be regarded as precisely defined lines between
safe and unsafe levels.
5 Measurement of Lamps and Lamp Systems
The measurement of optical radiation for the purpose of computing photobiological radiation
values poses significant challenges for the radiometrist. Typical photobiological action spectra
such as SUV(λ) have rapidly changing values with slight change in wavelength.
Operation of the test lamp shall be provided in accordance with the appropriate IEC lamp
standard. If no standard for the lamp type exists, the lamp manufacturer’s recommendation for
operation should be used.
6 Lamp Classification
The classification of this Standard was developed by reference of the provisions of CIE TC 6-
47.This joint effort was deemed important so that issues concerning risk group classification
and distance at which the photobiological hazard values due to lamp radiation are reported
could be agreed upon.
Annex A
(Informative)
Summary of Biological Effect
Bioeffect datasheet #1.Infrared cataract
Annex B
(Informative)
Measurement Method
Modern broadband detectors, when calibrated against the appropriate action spectrum, and with
appropriate precaution, may be used. When faced with short duration pulsed or low intensity
sources, they are convenient to use. Broadband hazard sensors normally attempt to match the
weighting spectra by the use of filters.
Annex C
(Informative)
Uncertainty Analysis
The analysis of uncertainty requires that all sources of uncertainty be quantitatively evaluated.
The first step in uncertainty analysis is identifying the various uncertainty sources. Below is a
list that can be the start of the evaluation of uncertainty for measurements used in classifying
lamps and lamp systems. See further details in CIE 53.1982 Methods of characterizing the
performance of radiometers and photometers.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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