GB/T 19258.1-2022 PDF English
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Ultraviolet radiation sources for germicidal purpose - Part 1: Low pressure mercury vapor discharge lamp
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[GB/T 19258-2012] Ultraviolet germicidal lamp
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GB/T 19258.1-2022: PDF in English (GBT 19258.1-2022) GB/T 19258.1-2022
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 29.140.30
CCS K 71
GB/T 19258.1-2022
Replacing GB/T 19258-2012
Ultraviolet radiation sources for germicidal purpose -
Part 1: Low pressure mercury vapor discharge lamp
ISSUED ON: OCTOBER 12, 2022
IMPLEMENTED ON: MAY 01, 2023
Issued by: State Administration for Market Regulation;
Standardization Administration of the People’s Republic of China.
Table of Contents
Foreword ... 3
Introduction ... 5
1 Scope ... 6
2 Normative references ... 6
3 Terms and definitions ... 7
4 Product classification, marking and model naming ... 10
5 Technical requirements ... 10
6 Test methods ... 14
7 Inspection rules ... 15
8 Marking, packaging, storage and transportation ... 16
Annex A (normative) Test methods for ultraviolet radiation flux and electrical
parameters ... 19
Annex B (normative) Measurement method of ultraviolet radiation luminance ... 23
Annex C (normative) Test method for ozone output (static method) ... 29
Annex D (informative) Test method for ozone output (dynamic method) ... 33
Annex E (normative) Life test method ... 36
Bibliography ... 38
Ultraviolet radiation sources for germicidal purpose -
Part 1: Low pressure mercury vapor discharge lamp
1 Scope
This document specifies the product classification, technical requirements, test methods,
inspection rules and marking, packaging, transportation and storage of low-pressure
mercury vapor discharge ultraviolet germicidal lamps (hereinafter referred to as
“lamps”).
This document applies to double-capped, single-capped or self-ballasted lamps made
of quartz glass or other ultraviolet-transmitting glass, with or without ozone and with
an ultraviolet radiation peak wavelength of 253.7 nm.
This document applies to lamps with a nominal power of less than 58 W, excluding cold
cathode ultraviolet lamps.
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 edition of the referenced document (including any amendments) applies.
GB/T 1406.1 Types and dimensions of lamp caps - Part 1: Screw caps
GB/T 1406.2 Types and dimensions of lamp caps - Part 2: Pin lamp caps
GB/T 1406.5 Types and dimensions of lamp caps - Part 5: Bayonet caps
GB/T 2797 Technical specification for lamp caps
GB/T 2828.1 Sampling procedures for inspection by attributes - Part 1: Sampling
schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection
GB/T 2829 Sampling procedures and tables for periodic inspection by attributes
(apply to inspection of process stability)
GB/T 2900.65-2004 Electrotechnical terminology - Lighting
GB/T 10682 Double-capped fluorescent lamps - Performance specifications
GB 16843 Single-capped fluorescent lamps - Safety specifications
The safety requirements of single-capped lamps, self-ballasted lamps and double-
capped lamps shall comply with the corresponding provisions of GB 16843, GB 16844
and GB 18774, respectively.
5.3 Glass tube
The glass tube of lamps shall be transparent and clean and shall not have defects that
affect the transmission of ultraviolet rays.
5.4 Lamp holder
The finished lamp shall be equipped with a lamp cap that meets the corresponding light
source performance standards.
The types and dimensions of pin, screw and bayonet lamp caps shall comply with the
provisions of GB/T 1406.2, GB/T 1406.1 and GB/T 1406.5, respectively. Lamp caps of
other specifications shall comply with the provisions of GB/T 2797.
5.5 Anti-ultraviolet radiation
The insulating materials used for lamp caps and lamp housings shall be resistant to
ultraviolet radiation, anti-ultraviolet aging and embrittlement. After completing the test
in 6.9, the sample shall not have any changes that weaken its safety, the anti-electric
shock performance of the insulating material shall not be reduced, the lamp cap and the
lamp cap pins shall not be loose, and the insulating material shall not be cracked, bulged
or shrunken.
5.6 Lamp dimensions
The dimensions of double-capped lamps, single-capped lamps and self-ballasted lamps
shall comply with the provisions of the corresponding model lamps in GB/T 10682,
GB/T 17262 and GB/T 17263, respectively.
5.7 Starting characteristics
Lamps shall have good starting characteristics, and the starting characteristics of
double-capped lamps, single-capped lamps and self-ballasted lamps shall comply with
the provisions of the corresponding power lamps in GB/T 10682, GB/T 17262 and
GB/T 17263, respectively.
5.8 Initial electrical parameters
The initial voltage value of double-capped lamps and single-capped lamps shall comply
with the provisions of the corresponding power lamps in GB/T 10682 and GB/T 17262,
respectively.
When the self-ballasted lamp works at rated voltage and rated frequency, the deviation
of its actual power consumption from the rated power shall not exceed 5 % + 0.5 W of
For lamps with ozone output, the manufacturer needs to provide a curve of the change
of ozone concentration over time, and the average peak value of the initial ozone output
efficacy shall not be less than 80 % of the nominal value.
5.13 Ultraviolet radiation flux maintenance/life
The average life of lamps shall not be less than 5000 h. The ultraviolet radiation flux
maintenance of a single lamp for 2000 h shall not be less than 85 %, and the ultraviolet
radiation flux maintenance at the end of life shall not be less than 65 %.
6 Test methods
6.1 Glass tube
Inspect by visual method.
6.2 Lamp cap
Inspect by corresponding gauge.
6.3 Anti-ultraviolet radiation
For the anti-ultraviolet aging of insulating materials, after testing according to 6.9, use
visual method and special gauges for inspection.
6.4 Lamp dimensions
Use general measuring tools or special gauges with an accuracy of not less than 0.05
mm for inspection.
6.5 Starting characteristics and initial electrical parameters
Single-capped lamps are tested according to the method specified in GB/T 17262.
Self-ballasted lamps are tested according to the method specified in GB/T 17263.
Double-capped lamps are tested according to the method specified in GB/T 10682.
6.6 Ultraviolet radiation efficiency, ultraviolet radiation flux
Test according to the method specified in Annex A.
6.7 Ultraviolet radiation luminance
Test according to the method specified in Annex B.
6.8 Ozone concentration/ozone output efficacy
Test according to the method specified in Annex C.
For ultraviolet lamps with ozone output used in dynamic airflow environments, refer to
Annex D for testing.
6.9 Ultraviolet radiation flux maintenance/life
Start timing according to the ignition time specified in Annex E, test and calculate
according to Annex A.
7 Inspection rules
7.1 Inspection classification
Inspection is divided into factory-exit inspection and type inspection.
7.2 Factory-exit inspection
The samples for factory-exit inspection shall be uniformly taken from the same type of
lamps produced daily (from each batch). Factory-exit inspection shall be carried out in
accordance with GB/T 2828.1, and its inspection items, sampling plan, inspection level
and acceptance quality level shall comply with the provisions of Table 4. The same type
of products submitted for acceptance at the same time are a batch. The inspection rules
for safety items in factory-exit inspection shall be in accordance with the relevant safety
standards.
7.3 Type inspection
Type inspection shall be carried out at least once a year. The samples for type inspection
shall be uniformly taken from the lamps that have passed the factory-exit inspection.
When the production of a product is suspended for more than half a year, or when the
structure, main raw materials or production process of the product changes may affect
the performance of the lamp, a type inspection shall be carried out.
Type inspection shall be carried out in accordance with the one-time sampling plan of
discrimination level I in GB/T 2829, and its inspection items, rejection quality level
(RQL), sampling quantity (n) and acceptance judgment array (Ac, Re) shall comply with
the provisions of Table 5. The inspection of quality supervision spot check shall be in
accordance with the provisions of routine inspection.
If the type inspection fails, production and acceptance shall be stopped until the new
type inspection passes, then production and acceptance can be resumed. Type
inspection shall also inspect all safety items.
B.2.4 Ultraviolet probe
The response of ultraviolet probes shall be within the UV-C band (including 253.7 nm).
The cosine characteristics and nonlinear errors of ultraviolet probes shall meet the
standard level requirements described in JJG 879-2015.
The value of ultraviolet probes shall be traceable to the relevant national metrology and
calibration agency.
B.2.5 Test environment
The ambient temperature when testing all photoelectric parameters shall be maintained
at (25 ± 1) ℃.
B.3 Measurement steps
B.3.1 Fix the lamp under test on the optical track and ignite it according to the
characteristics of the lamp. When the horizontal normal in the middle of the lamp passes
through the ultraviolet radiation luminance meter probe, the luminous surface of the
lamp (if any) shall be perpendicular to the optical track and parallel to the receiving
surface of the ultraviolet radiation luminance meter probe.
B.3.2 Install the ultraviolet radiation luminance meter on the optical track so that the
normal of the receiving plane of the luminance meter coincides with the horizontal
normal in the middle of the lamp under test.
B.3.3 Adjust the position of the ultraviolet radiation luminance meter so that the
receiving surface of the ultraviolet radiation luminance meter is 1000 mm ± 1 mm away
from the surface of the lamp under test.
B.3.4 Turn on the power of the lamp under test according to B.2 to ignite the lamp
normally and preheat for 20 min.
B.3.5 After the lamp is stable, open the shutter of the ultraviolet radiation luminance
meter and read the reading of the ultraviolet radiation luminance meter directly.
B.4 Safety operation requirements
During the test, operators shall take effective measures to prevent ultraviolet radiation
from causing ultraviolet burns to the eyes and exposed parts of the human body.
Annex C
(normative)
Test method for ozone output (static method)
C.1 Test principle
At the end of the light path of the same absorption cell, measure the light intensity I and
I0 of the light source with a peak wavelength of 253.7 nm after ozone absorption and
without ozone absorption, and convert them into ozone concentration with the help of
microcomputer processing.
Ozone has the largest ultraviolet absorption coefficient for wavelength λ = 253.7nm. At
this wavelength, ultraviolet light will attenuate when passing through the ozone layer,
which conforms to the Lambert-Beer law, see formula (C.1).
where:
I0 - incident light intensity when no ozone exists;
I - light intensity after light beam penetrates ozone;
L - optical path length of ozone sample cell;
K - absorption coefficient of ozone for light wavelength;
ρ - mass concentration of ozone.
According to this formula, under the condition that K and L are known, the ozone
concentration value can be measured by detecting the values of I and I0.
C.2 Test conditions
C.2.1 The ignition circuit of the lamp shall comply with the provisions of B.1.4. A
reference ballast is used.
C.2.2 Test environment: temperature: 25 ℃ ± 1 ℃; relative humidity 30 % ~ 50 %; air
pressure 860 kPa ~ 101.3 kPa; oxygen content in the air (volume fraction) 21 % ± 1 %.
C.3 Test system
C.3.1 The ozone output test system shall comply with the provisions of Figure C.1. The
ozone collector is a closed container made of materials that are resistant to ultraviolet
aging, ozone corrosion, and do not absorb ozone (preferably 304, 316 stainless steel,
N - ozone output efficacy, in grams per kilowatt-hour [g/(kW · h)];
ρ - ozone mass concentration, in milligrams per cubic meter (mg/m3);
V - ozone collector volume, in cubic meters (m3);
t - time, in seconds (s);
P - lamp power, in watts (W).
C.6 Measurement steps
C.6.1 Select an ozone analyzer with a suitable range, use the instrument according to
the instrument instructions; place the ozone analyzer probe at the collector detection
hole, the probe head is flush with the inner surface of the detection hole and is not
allowed to extend into the collector, and prevent the probe head from being blocked
during measurement.
C.6.2 Place the lamp in the ozone collector, adjust the positioning table so that the
horizontal normal of the lamp center is 250 mm away from the bottom of the collector,
and the vertical normal of the lamp center is 1000 mm away from the detection surface,
so that the lamp is in the center of the collector. The lamp head of single-capped lamps
faces the detection hole and ignite according to the characteristics of the lamp.
C.6.3 Record the sample mass concentration ρ, the ignition time t, and the lamp power
P once a minute. To ensure the test accuracy, the test time of the ozone lamp shall not
exceed 75 min. During the test, if the ozone concentration remains basically unchanged,
the test can be stopped after recording 10 values; otherwise, it shall measure to the
maximum test time.
C.6.4 Calculate the ozone output efficacy per minute according to formula (C.2) and
draw a curve of the change of ozone concentration over time. The average of the three
largest values of ozone output efficacy during the test time is the average peak value of
ozone output efficacy.
C.6.5 The test time of ozone-free lamps is 1 h, during which at least 12 data are read at
a certain interval to calculate the average value.
C.6.6 After the test is completed, the ozone in the test room and the collector must be
discharged from the test room to prevent affecting the accuracy of the next test.
Exchange the air in the test room with fresh air to ensure that the oxygen content in the
air in the test room is within the normal value.
C.7 Safety operation requirements
During the test, operators shall take effective measures to prevent ultraviolet radiation
from causing burns to the eyes and exposed parts of the body, and to prevent inhalation
Annex D
(informative)
Test method for ozone output (dynamic method)
D.1 Test principle
The principle of ozone concentration test is shown in Figure D.1. The dynamic
measurement method established in this annex ignores the factors that affect the light
output due to the airflow passing through the lamp tube changing the working
temperature of the lamp tube, and compares the differences in ozone output of lamp
tubes under the same test conditions.
The principle of the test system: place the lamp in a specified box pipe system to
simulate an ozone generator. The product of the ozone concentration value and the total
gas volume entering the system is the ozone output.
In actual use of the lamp, the ozone output is related to many factors, such as air flow
rate, oxygen content, ambient temperature and humidity, gas composition, space size,
lamp running time, etc. The purpose of the test system established in this annex and the
test method given is to be able to scientifically compare the differences in ozone output
between lamps. When using pure oxygen feed and controlling the lamp tube wall
temperature by a certain method, the difference in the conversion of 185 nm ultraviolet
radiation power into ozone output of lamps of different shapes and sizes can be
calculated and compared.
D.2 Test conditions
D.2.1 Test environment: temperature: 25 ℃ ± 1 ℃; relative humidity: 30 % ~ 50 %; air
pressure: 101.3 kPa; oxygen content in normal atmosphere (volume fraction) 21 % ±
1 %.
D.2.2 The test circuit refers to the test circuit in Annex B. A reference ballast is used.
D.3 Test system
The dynamic ozone output test system must comply with the dimensions shown in
Figure D.1, which are the dimensions inside the box pipe. The test system is made of
materials that are resistant to ultraviolet aging, ozone corrosion, and no ozone
adsorption. It should use 304 and 316 stainless steel materials, with matte treatment
inside.
Annex E
(normative)
Life test method
E.1 Test conditions
E.1.1 Test environment
The test shall be carried out in an environment with no convection at 15 ℃ ~ 50 ℃,
and the lamp shall not be subjected to severe vibration and collision when igniting.
E.1.2 Power supply
The power supply frequency shall be stable at 50 × (1 ± 0.5 %) Hz, and the voltage
shall be stable at 220 (1 ± 2 %) V.
E.1.3 Life ballast
E.1.3.1 The ballast shall comply with the provisions of GB/T 10682 and GB/T 17262
and comply with the starting conditions of the lamp.
E.1.3.2 When the ballast works with the test lamp at its rated voltage, the difference
between the power consumed by the lamp and its rated value shall not exceed 4 %. The
test lamp is a lamp of which the deviation of the voltage at both ends from the rated
value shall not exceed 2 % when it works with the reference ballast.
E.1.3.3 When the ballast works with a lamp with a starter, the deviation of the
preheating current at rated voltage from the value specified in the corresponding
parameter table shall be less than 10 %.
E.2 Ignition time control
The lamp is turned off for 15 min after igniting for 165 min. The off time is not included
in the life time.
E.3 Test method and test circuit
The life test method and test circuit of lamps shall comply with the provisions of GB/T
10682, GB/T 17262 and GB/T 17263, respectively.
E.4 Life calculation method
The life of individual lamp is calculated as the cumulative time from the time when the
lamp is ignited to “burnout” or the time when the ultraviolet radiation maintenance
drops to the value specified in this document. The average life is calculated as the time
when the ultraviolet radiation flux maintenance of n (n ≥ 10) lamps meets the
......
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.
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