This standard specifies the artificial weathering test method for plastics, coatings, and rubber materials for mechanical industrial products - fluorescent ultraviolet lamp exposure test method. This standard is applicable to the comparative and screening test of weather resistance of plastics, coatings, rubber and other materials. GB/T 14522-2008 Artificial weathering test method for plastics, coatings, and rubber materials for mechanical industrial products Fluorescent ultraviolet lamp GB/T14522-2008 Standard download decompression password: www.bzxz.net
This standard specifies the artificial weathering test method for plastics, coatings, and rubber materials for mechanical industrial products - fluorescent ultraviolet lamp exposure test method. This standard is applicable to the comparative and screening test of weather resistance of plastics, coatings, rubber and other materials.
This standard replaces GB/T14522-1993 "Artificial weathering accelerated test method for plastics, coatings, and rubber materials for mechanical industrial products".
Compared with GB/T14522-1993, the main changes of this standard are as follows:
---The name of the standard is changed to "Artificial weathering test methods for plastics, coatings and rubber materials for mechanical industrial products - Fluorescent UV lamps";
---The content related to xenon lamp exposure test is deleted;
---Chapter 4 "Principles" is added;
---In the chapter on equipment, the specific structure of the equipment is no longer specified, only the performance requirements are proposed, the relative spectral energy distribution of three fluorescent UV lamps, UVA340, UVA351 and UVB313, is specified, the relevant content of equipment with automatic irradiance control system is added, and another way of providing moisture - water spraying is added;
---In the chapter on specimens, requirements are proposed for plastics, coatings and rubber respectively;
---No specific provisions are made on test conditions;
---Chapter 8 "Procedures" is added;
---Added Chapter 9 Accuracy and Deviation;
---Added a normative appendix Method for Determining the Relative Spectral Energy Distribution of Fluorescent UV Lamps (see Appendix A);
---Added an informative appendix Extract from Table 4 of CIE Publication No.85:1989 (see Appendix B);
---Added an informative appendix Typical Test Conditions Examples (see Appendix C).
Appendix A of this standard is a normative appendix, and Appendix B and Appendix C are informative appendices.
This standard is proposed and coordinated by the National Technical Committee for Environmental Conditions and Environmental Testing of Electrical and Electronic Products (SAC/TC8).
This standard is drafted by the China Electric Power Research Institute.
The main drafter of this standard: Zhang Zhiyong.
The previous versions of the standards replaced by this standard are:
---GB/T14522-1993.
The provisions in the following documents become the provisions of this standard through reference in this standard. For all referenced documents with dates, all subsequent amendments (excluding errata) or revisions are not applicable to this standard. However, parties that reach an agreement based on this standard are encouraged to study whether the latest versions of these documents can be used. For all referenced documents without dates, the latest versions are applicable to this standard.
GB/T16422.1 Laboratory light source exposure test method for plastics Part 1: General (GB/T 16422.1-2006, ISO4892-1:1999, IDT)
GB/T9271 Standard test panels for paints and varnishes (GB/T9271-1988, eqvISO1514:1984)
GB/T13452.2 Determination of film thickness of paints and varnishes (GB/T13452.2-1992, idtISO2808:1974)
GB/T7762 Static tensile test for resistance to ozone cracking of vulcanized rubber or thermoplastic rubber (GB/T7762-2003, ISO1431-1:1989, MOD)
GB/T2941 Rubber physical test methods General procedure for specimen preparation and conditioning (GB/T2941-2006, ISO23529:2004, IDT)
Foreword II
1 Scope 1
2 Normative references 1
3 Terms and definitions 1
4 Principle 2
5 Apparatus 2
6 Specimen 4
7 Test conditions and test time 5
8 Procedure 5
9 Precision and deviation 6
10 Test report 6
Appendix A (Normative) Method for determining the relative spectral power distribution of fluorescent ultraviolet lamps 8
Appendix B (Informative) Extract from Table 4 of CIE Publication No.85:1989 9
Appendix C (Informative) Examples of typical test conditions 10
References 11

ICS19.040
National Standard of the People's Republic of China
GB/T 14522—2008
Replaces GB/T14522--1993
Artificial weathering test method far plastics,coaling and rabber materialsused for machinery industrial products--Fluorescent UV lamp lamps2008-06-16 Issued
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China Standardization Administration of China
2009-03-01 Implementation
GB/T14522-2008
Normative reference documents
Technical description and definitions
Test conditions and test time
Precision and bias
10 Test report·
Method for determining the spectral energy distribution of fluorescent ultraviolet lamps Appendix A (Normative Appendix)
Appendix B (Informative Appendix)bzxz.net
Appendix (Informative Appendix)
References
CF Publication No. 85.1989 Table 4 extract.....Typical test examples
GB/T14522—2008
This standard replaces GB/T14522-1993 "Accelerated test methods for plastics, coatings and rubber materials for use in mechanical industrial products". Compared with (G13/145221993), the main changes of this standard are as follows: 1. The name of the standard is changed to "Artificial weathering test method for plastics, coatings and rubber materials for mechanical industrial products - Fluorescent UV lamp:
The content related to the UV lamp exposure test is added; 2. Chapter 4 "Principle" is added;
In the equipment chapter, the specific structure of the equipment is no longer specified, only the performance requirements are proposed, and the provisions on the relative light energy distribution of three fluorescent UV lamps UVA340, LVA·351 and LJVB·313 are added; the relevant content of the equipment without irradiance automatic control system is added; and another way of providing gradual wetting is added: spraying water:
In the specimen chapter, general requirements are proposed for the three materials of warping, coating and rubber respectively; no specific test conditions are made Provisions; - Added Chapter 8 "Procedure";
Added Chapter 9 "Precision and Deviation";
· Added a normative appendix "Method for Determining the Light Energy Distribution of Carbon Light UV Lamp" (see Appendix A); - Added an informative appendix "CIE Publication No. 85.1989 Table 4" (see Appendix B); Added an informative appendix "Typical Test Conditions and Examples (see Appendix (). Appendix A of this standard is a normative appendix, and Appendix B and Appendix are informative appendices. This standard was proposed and coordinated by the Technical Committee for Environmental Conditions and Environmental Testing of Electrical and Electronic Products of China (SAC/C8). This standard was drafted by the China Electric Power Research Institute. The main drafter of this standard: Zhang Zhijian.
The latest version of the standard replaced by this standard is: GB/T 14522—1993.
1Fanquan
Artificial weathering test method for plastics, coatings and rubber materials for mechanical industrial products Fluorescent ultraviolet lamp GB/T 14522 .-2008
Fluorescent ultraviolet lamp
This standard specifies the artificial air aging test method for plastics, coatings, and rubber materials used in mechanical industrial products: Exposure test method.
This standard applies to the comparative screening test of weather resistance of plastics, coatings, rubber and other materials. 2 Normative referenced documents
The clauses in the following documents become the clauses of this standard through reference to this standard. For any dated referenced documents, all subsequent amendments (excluding errata) or revisions are not applicable to this standard. However, the parties who have reached an agreement based on this standard are encouraged to study whether the latest versions of these documents can be used. For any undated referenced documents, the latest version shall apply to this standard. GB/116422.1 Plastics laboratory light source exposure test method Part 1: General (GB/T16422.1-2006, IS0 4892-1:1999, HDT
GB/T9271 Standard test for paint and varnish (GB/T9271-1988, cqVISO15_4:1984) G[3/13452.2 Determination of film thickness of paint and varnish (G/T13462.21992, tISO2808:1974) GB/T7762 Durability of vulcanized rubber or thermoplastic rubber Ozone irradiation static tensile test (GB/T7762--2003, ISO1431-1:1989, M00)
GB/T2941 Rubber physical test method specimen preparation and adjustment general procedure (GB/T2941-2006, IS023529:2004, IDT)
3 Terms and definitions
The following terms and definitions apply to this standard.
Recommended specimen
Part of the test material stored under stable conditions for comparison of performance changes before and after exposure. 3.2
Exposed test material
A material with similar composition and structure to the test material, used to compare the performance after exposure at the same time as the test material. 3.3
Control sample canirul spccimen
Part of the control material used for exposure
Irradiance irradiance
The maximum amount of radiation energy of a wavelength or a wavelength per unit area per unit time, in W/㎡. 3.5
Radiante aposure
The time integral of irradiance, in J/m\GH/T14522—2008
Spectral power istributionSpectral power istributionThe relative or relative radiation energy emitted by a light source or received by an object, in terms of wavelengths. 3.7
Black panel thermometerBlack panel thermometerA temperature measuring device, consisting of a metal base and a thermosensitive element, the thermosensitive element is attached to the center of the metal base, and the entire light-receiving surface of the device is coated with a photochromic coating, which can evenly absorb the light spectrum radiation. 3.8
Fluorescent UV lamp is a low-voltage arc lamp. The radiation emitted by the mercury arc is converted into ultraviolet radiation with a longer wavelength by the phosphor coating. The spectral energy distribution depends on the emission spectrum of the mercury arc, the emission spectrum of the phosphor coating and the ultraviolet radiation transmittance of the glass tube. 4 Principle
4.1 The radiation of the fluorescent UV lamp is used to simulate the ultraviolet radiation in sunlight. 4.2 The specimen is exposed to periodically repeated light and humidity environment or continuous light environment, and the light and humidity environment are under controlled conditions. The specimen is exposed to the specified test time. 4.3 There are three common ways to provide humidity:
a) water vapor condenses on the specimen;
6) sprays softened water or deionized water on the specimen. 4.4 Exposure conditions can be varied by selecting different options below or setting different values ​​(where applicable): a) Type of fluorescent UV lamp; b) Method of moisture exposure; b) Timing of light and moisture exposure; c) Timing of light and dark exposure; d) Magnitude of illuminance; d) Temperature during light exposure period; 4.5 The results of the exposure test can be obtained by: a) Comparison of the performance values ​​of the specimens before and after exposure; b) Comparison of the performance values ​​of the exposed specimens and the stored specimens; d) Comparison of the performance values ​​of the exposed specimens and the control specimens exposed at the same time. 4.6 The results of exposure tests on different machines of the same type should not be compared unless the reproducibility of the test results between the machines has been determined.
4.7 The results of exposure tests on different machines of different types should not be compared unless the reproducibility of the test results between the machines has been determined.
5 Apparatus
5.1 Light Sources
5.1.1. This standard should use fluorescent ultraviolet lamps. The radiation of fluorescent ultraviolet lamps is mainly ultraviolet, and the radiation below 40nm accounts for more than 10% of the total radiation. Three types of fluorescent ultraviolet lamps can be used in this standard: UVA-349 fluorescent ultraviolet lamp: The relative spectral energy distribution of this type of lamp meets the requirements of Table 1. The radiation below 300nm accounts for less than 2% of the total radiation, and its radiation energy peak is at a wavelength of 340nm. This type of lamp is generally used to simulate medium and short-wave ultraviolet rays in sunlight.
GB/T14522—2008
L.VA-351 fluorescent ultraviolet lamp: The relative spectral energy distribution of this type of lamp should meet the requirements of Table 2. The radiation below 300nm accounts for less than 2% of the total radiation, and its radiation energy peak is at a wavelength of 351nm. This type of lamp is generally used to simulate medium and short-wave ultraviolet rays in sunlight after passing through glass. UVB-313 fluorescent ultraviolet lamp: The relative spectral energy distribution of this type of lamp meets the requirements of Table 3. The percentage of radiation below 300nm in the total radiation is greater than 10%, and its radiation energy peak is at a wavelength of 313nm. Table 1 Relative spectral energy distribution of VA-340 fluorescent ultraviolet lamp Wavelength band/nm
290320
320-AS360
560A100
Minimum intensity/%
Maximum intensity/%
Certification: The data in the table are the percentage of the elemental irradiance in a given wavelength band to the total irradiance. The wavelength band of the total irradiance is 290nm ~ 400nm.
Table 2 Relative spectral energy distribution of UVA-351 fluorescent ultraviolet lamp Wavelength passband/rm
300320
320-A365
363-≤400
Minimum/time
Maximum/%
Note, the data in the table are the percentage of the cumulative irradiance in the appropriate wavelength band to the total irradiance, the long passband of the total irradiance is 290 nAonnm.
Table 3 Relative spectral energy distribution of UJVB-313 fluorescent ultraviolet lamp Wavelength passband/nm
290320
320-A860
360-A400
Minimum value/maximum value
Note: The data in the table are the percentage of the cumulative irradiance in a given wavelength passband to the total irradiance. The wavelength band of total irradiance is 25:IM--40n
For the method of determining the relative spectral energy distribution of the light ultraviolet lamp, see Appendix A, CIE publication Ne.85, 1989. Table 4 provides the solar spectral irradiance data under typical climatic conditions; Appendix B extracts some of the data and gives the relative spectral energy distribution in the ultraviolet band. 5.1.2 During the test, the same type of fluorescent UV lamp is generally used. It is recommended not to mix different types of fluorescent UV lamps. 5.1.3 Fluorescent UV lamps will age during use. The lamps should be replaced according to the manufacturer's instructions. For equipment without an automatic illumination control system, the lamp replacement should be rotated according to the manufacturer's instructions. 5.1.4 Dirt and sediment on the lamps should be cleaned regularly. 5.2 Test chamber
5.2.1 The test chamber has different designs but should be made of durable materials. 5.2.2 The test chamber should contain fluorescent UV lamps and sample racks. The installation positions of the fluorescent lamps and sample racks should ensure uniform irradiance on the sample surface and comply with the provisions of CGB/T16422.1. 5.2.3 The test chamber should contain a blackboard thermometer. 3
GB/T14522...2008
5.2.4 When necessary, the test box also contains a device to generate saturated water vapor to form condensation; such as a water pan and a heater. 5.2.5 When necessary, the test box also contains a device to spray water on the sample surface. 5.3 Radiometer
It is recommended to use a radiometer to monitor the irradiance of the test surface: if a radiometer is used, it should meet the requirements of GB/T16422.1. 5.4 Blackboard thermometer
The monitoring of the sample temperature is generally carried out with a blackboard thermometer. The blackboard thermometer should meet the requirements of GB/T6422.1. The blackboard thermometer should be installed at a sample position, and the sample is under the same exposure conditions. 5.5 Humidity
5.5.1 Moisture exposure method
The sample can be exposed to the following two forms of humidity: condensation or water spray. 5.5.2 Condensation
The test chamber may provide a means of forming condensation on the exposed surface of the specimen. Typically, this is done by heating water to produce saturated water vapor, which then forms condensation on the specimen.
5.5.3 Water Spraying
The test chamber may be equipped with a water spraying device to spray water intermittently on the specimen. The water should be sprayed evenly on the specimen. The water spraying system should be made of corrosion-resistant materials and will not contaminate the spray water. The water used should have a conductivity of less than 5μS/cm, a total dissolved solids content of less than 1ng/L, and a sulphur content of less than 0.1 mg/1. It should not leave noticeable stains or deposits on the specimen. 5.6 Specimen Holder
The specimen holder should be made of corrosion-resistant materials that will not affect the test results. When the equipment provides condensation, the specimen holder should be designed to ensure that after the specimen is installed, there is sufficient free air to cool the back of the specimen to produce condensation on the exposed surface of the specimen. 5.7 Calibration
Related instruments of the equipment, such as thermometers, radiometers, timers, etc., should be calibrated regularly to ensure the repeatability of the test results. The calibration method and procedure should comply with the manufacturer's instructions or relevant regulations. 6 Test specimens
6.1 Plastics
CB/T 16422. 1.
6.7 Coatings
6.2.1 Preparation and coating
Unless otherwise specified, the test specimen base plate shall be prepared in accordance with the provisions of GB/T9271. The base plate shall be made of the material actually used by the corresponding product, such as wood, metal, plastic, etc. The base plate shall be flat and its size shall be suitable for the size of the equipment specimen rack. For tests using condensation, the thickness of the specimen shall be limited to ensure that the exposed surface of the specimen can produce condensation: coating shall be carried out according to the specific method of the coating to be tested. Generally, only the exposed surface of the base plate shall be coated. When necessary, the back and edge shall be coated with protective coating.
6.2.2 Drying and conditioning
The coated specimens shall be dried (or baked) and conditioned according to the relevant standards or methods. 6.2.3 Coating thickness
The thickness of the dried coating shall be measured in micrometers by the non-destructive method specified in GB/T13452.2. 6.2.4 Number of specimens
For each coating, an appropriate number of specimens shall be used for testing in a test device, generally not less than 3. 4
GB/T 14522—2008
If necessary, at least one sample should be prepared for each coating and stored at room temperature, away from sunlight. 6.3 Rubber
The requirements for specimens in GB/T16422.1 are applicable to rubber. For the test of rubber under stress, the specimens shall be prepared according to G13/T7762 and the state of the specimens shall be adjusted according to GB3/T2141. 6. 4 Use of control samples It is recommended that a control sample be exposed at intervals between the test sample and the test sample to provide a standard for comparison. 7 Test conditions and test duration 7.1 Test conditions Any test conditions may be used within the capabilities of the equipment. Test conditions are usually specific to an exposure period, including the number of exposure segments that make up the exposure cycle, the sequence of exposure segments, the duration of each exposure segment, and the conditions of each exposure segment a) Whether there is light, the illumination during light exposure, including the wavelength band monitored (when applicable); b) Whether there is condensation; e) Whether there is water spray. t||d) Blackboard thermometer temperature.
The test conditions used should be listed in detail in the test report. Some typical test conditions are shown in Appendix C for reference or selection.
7.2 Test time
The test pair should be determined in the following ways:
a) A clear time value (in hours) or number of exposure cycles:
b) A clear irradiation amount:
c) Achieving a specific performance value
8 Procedure
8, 1 Mark each sample. The identification symbol should be located in the non-test area of ​​the sample and should not disappear or fade easily. 8.2. Determine which properties of the sample need to be tested, for example, appearance properties such as color gloss, powdering cracks, tensile strength, fracture length, bending strength and other mechanical properties. Before exposing the sample, test it according to relevant standards or specifications. If required, destructive tests should be carried out and stored samples should be used for performance testing. 3. Install the sample on the sample holder of the equipment. The sample should not be subjected to additional stress. For the test of rubber samples under stress, the specific installation method is G13/T7762.
For tests to detect changes in appearance such as color, a portion of the specimen may be covered with an opaque shield. This covered area can be compared with the adjacent exposed area of ​​the specimen to test the progress of the exposure. However, the test results can only be based on the comparison between the exposed specimen and the adjacent exposed specimen.
In order to ensure consistent test conditions, all empty spaces on the specimen rack are covered with backing before installation. The backing material may affect the test results. For small-sized specimens, if the entire exposed window of the test rack cannot be sealed, a backing should be used to prevent the escape of water vapor. The use of the backing should be confirmed by the relevant party to the test. 8.4 Set the procedure according to the selected test conditions and conduct the test until the required test time. The test conditions should be maintained stable during the test period to minimize test interruptions caused by maintenance of equipment or inspection of specimens. 8.5 Replacement of sample position:
a) The irradiation point is located at the center of the exposure area. If the irradiance at the farthest point from the exposure center is less than 90% of the maximum irradiance, there is no need to replace the position of the sample. The method for determining the uniformity of the irradiance in the sample exposure area is shown in GB/T 15222.1,
GB/14522-2008
6) If the irradiance at the farthest point from the center of the exposure area is less than 0% of the maximum irradiance, one of the following two methods is used to place or replace the position of the sample
1) The position of the sample is changed regularly during the test period to ensure that each sample receives an equal amount of irradiation. The method for replacing the position of the sample is determined by negotiation between the parties concerned.
2) Samples are placed only in those areas with more than 90% of the maximum irradiance. 8.6 If an intermediate test is required, it should be carried out at the end of the dry media exposure period. When removing and placing the sample, be careful not to touch or damage the test surface of the sample. After the test, the sample should be returned to its original position and the orientation of the test surface should be the same as before. 8.7 The test equipment requires regular maintenance to maintain consistent test conditions. Maintenance and calibration should be carried out in accordance with the manufacturer's instructions. 8.8 After the exposure is completed, the performance test should be carried out in accordance with relevant standards or specifications. 9 Precision and Bias
9.1 Precision
9,11 The repeatability and reproducibility of the results obtained from the exposure test will vary with a number of factors: the test material, the properties being tested, the conditions and period of the exposure test, etc. This limits the use of "absolute specifications", such as requiring that a certain property of the sample reach a specific value after a specific exposure time. NOTE: In a joint test study conducted by ASTM Subcommittee G03.03, significant differences were observed in the 60° gloss values ​​of materials tested in different laboratories using the same equipment and test conditions. In this joint test study, it was also shown that a high degree of reproducibility was demonstrated in the experimental studies when a series of material gloss values ​​were graded. 9.1.2 If a general standard or specification requires a specific performance value to be achieved after exposure to this standard for a specific time or amount of radiation, the value should be based on the results of a joint test in which the variability of the exposure and performance test methods has been taken into account. The joint test should be conducted in accordance with the relevant standards and should be conducted by a representative group of laboratories or institutions that normally perform the exposure and performance tests. 9.1.3 If a standard or specification is used for two or three parties and requires that an exposure test for a specific time or radiation dose in accordance with the standard achieve a stated performance value, the value shall be based on a statistical analysis of the results obtained from at least two independent exposure tests conducted by the laboratory. The experimental design used to determine the specification shall take into account the variability of the exposure and performance test methods. 9.1.4 When the reproducibility of the results of exposure tests conducted in accordance with this standard has not been established by joint testing, the performance requirements of the material shall be specified by comparison with a control material (differential classification). The control sample shall be exposed in the same equipment as the test specimens, and the control material used shall be approved by the parties involved. The same test specimens shall be exposed to the control sample to determine whether there is a statistically significant difference in performance. 9.2 Bias
Bias cannot be determined because there is no universally recognized weathering standard for materials. 10 Test report
The test report shall include the following applicable contents: 10.1 Description of the sample, including:
a) A complete description of the sample and its source; b) A detailed description of the sample composition;
A complete description of the sample preparation method. For example, a coating sample may include:
1) Base material, thickness and surface treatment method; coating method:
Coating drying (baking) conditions and time; 3>
4) Thickness of the coating layer;
d) Conditions and time for sample conditioning. 10.2 Description of the exposure test, including:
a) Equipment type and fluorescent UV lamp type; GB/14522-2008
b) A complete description of the test conditions specified in 7.1, and also the half-mean value and its deviation of the irradiance during illumination. The difference, the average value of the blackboard thermometer temperature and its deviation:
Test time, expressed in hours, cycles or exposure; a) Special lining materials if used);
e) The method of changing the position of the sample (if changed). 10.3 The results of each performance test and the summary shall be expressed in accordance with the provisions of the relevant standards or specifications: 10.4 Description of other performance test standards or specifications that refer to this standard 10.5 Test period:
GB/T14522—2008
Appendix A||tt| |(Normative Appendix)
The method for determining the relative spectral energy distribution of fluorescent ultraviolet lamps is in accordance with the specified values ​​in the relative spectral energy distribution table. It is the design energy standard for the carbon fluorescent lamp exposure test equipment. The equipment manufacturer shall comply with this standard and confirm that all modified ultraviolet lamps it provides meet the specified values ​​in the relative spectral energy distribution table, and shall provide appropriate maintenance methods to minimize the spectral changes that may occur during normal use. The relative spectral energy distribution numbers in this standard are obtained by rectangular integration. Wu A,! Is the use of rectangular integration? Integrate the equation to determine the relative spectral energy distribution. Other integration methods can be used to calculate the relative spectral energy distribution, but may give different numbers. When comparing the relative light energy distribution of a fluorescent UV lamp to the light energy distribution specified in this standard: To determine whether a particular fluorescent UV lamp meets the requirements of Table 1, Table 2 or Table 3, measure its spectral energy distribution between 250 nm and 400 nm. Typically, a wavelength interval of 21° should be used for measurement: If the spectral measurement instrument cannot measure as low as 250 nm, the spectral energy distribution of the lamp will be determined by integrating the equation to determine the relative spectral energy distribution. The wavelength of nm is the lowest wavelength measured in the city report. The lowest wavelength of the scene should not be greater than 270 nm. The compliance of the spectral energy distribution of the fluorescent UV lamp UVI3-3:3 is determined by the measurement range of 250mJT: to 400I. Calculate the cumulative irradiance between each long passband and then divide it by the given total UV irradiance, as shown in test (A.1): When using formula (A.1), it is required to use the same wavelength interval (step size) within the applied spectral range, for example, 2 nm, ZE
in the play:
irradiance expressed in percentage; -{A.1
wavelength^, irradiance at (for all wavelength passbands, the step size should be equal), unit is watt per square meter (W/m\): \ lower limit of the wavelength passband, unit is nanometer (nm); upper limit of the wavelength passband, unit is nanometer (nm); lower limit of the total ultraviolet bandpass for calculating relative light potential illuminance in meters (UJVA-340 lamp, UVA-351 lamp is 290nm, UVB-313 lamp is 250, unit is nanometer (mm); measurement wavelength of irradiance, unit is nanometer (nm). Appendix B
(Informative Appendix)
Extract from Table 4 of CIE Publication No.85:1989
GB/T 14522-2008
Table B.1 extracts the solar spectrum illuminance given in Table 4 of CIE Publication No. 85:1989, and gives the relative light energy increase distribution in the ultraviolet band.
H.1Extract from Table 4 of CTE Publication 3u.85:1989 wavelength band/
290#18320
3211-1360
366400
23032.400
290800
irradiance/W/m）
relative spectral energy (290 nn.~-4CJ nm coupling irradiance front spectrum)/0. 0
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