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1、J I S B*7754 91 = 4933b08 0500690 O W UDC 620.1 93.2.05:620.193.6.05:621.327,52 JI JAPANESE INDUSTRIAL STANDARD Light-exposure and light- and-water-exposure apparatus (Xenon-arc lamp type) JIS B 7754-1991 Translated and Published J panese Standards Association Printed in Japan 16 S COPYRIGHT Japanes
2、e Standards Association Licensed by Information Handling Services COPYRIGHT Japanese Standards Association Licensed by Information Handling Services J I S B * 5 4 91 = 4933608 0500691 2 I . . . . - In the event of any doubt arising, the original Standard in Japanese is to be final authority. I COPYR
3、IGHT Japanese Standards Association Licensed by Information Handling Services COPYRIGHT Japanese Standards Association Licensed by Information Handling Services JIS B*K7754 91 E 4933608 0500b92 4 E UDC 620.193.2.05:620.193.6.05:621.327.52 JAPANESE INDUSTRIAL STANDARD Light-exposure and light-and-wat
4、er- exposure apparatus (Xenon-arc lamp type) J I S B 7754-1991 1. Scope exposure apparatus (Xenon-arc lamp type) used for testing of light resistance ( l ) and weather resistance ( 2 ) of industrial materials and products of all types (hereafter referred to as the “test apparatus“). This Japanese In
5、dustrial Standard specifies light-exposure and light-and-water- Notes ( l ) The property of resistance to variation under irradiation of light, () The property of resistance to variation to natural actions, such as outdoor sun-light, wind, rain, etc. Light-exposure apparatus means test apparatus cap
6、able of performing irradiation of an artificial light source closely resembling solar light for examining part of the properties of light resistance in a short time. apparatus means test apparatus capable of performing irradiation . of an artificial light source closely resembling solar light and of
7、 performing intermittent water spray for examining part of the properties of weather resistance in a short time. Remarks 1. Light-and-water exposure 2. The following Standards are cited in this Standard: JIS C 1102 Electrical Indicating Instruments JIS G 3442 Galvanized Steel Pipes for Water Service
8、 JIS G 3459 Stainless Steel Pipes JIS G 4305 Cold Rolled Stainless Steel Plates and Sheets JIS G 4307 Cold Rolled Stainless Steel Strip JIS H 3100 Copper and Copper Alloy-Sheets, Plates and Strips JIS H 3250 Copper and Copper Alloy-Rods and Bars JIS H 3300 Copper and Copper Alloy-Seamless Pipes and
9、Tubes JIS H 4000 Aluminium and Aluminium Alloy Sheets and Plates, Strip and Coiled Sheets JIS H 5101 Brass Castings JIS K 6742 Unplasticized Polyvinyl Chloride Pipes for Water Works JIS K 6762 Polyethylene Pipes for Water Works Service COPYRIGHT Japanese Standards Association Licensed by Information
10、 Handling Services COPYRIGHT Japanese Standards Association Licensed by Information Handling Services I I J I S B87754 71 m 4733608 0500673 b I 1- 2 B 7754-1991 JIS Z 8703 JIS Z 8722 Standard Atmospheric Conditions for Testing Methods of Measurement for Colour of Reflecting or Transmitting Objects 2
11、. Definitions For the purposes of this Standard the following definitions apply: (1) black panel temperature thermometer attached to a rack or rotary board, which is representative for the surface temperature. xenon arc lamp The temperature indicated by a black panel (2) An arc lamp which emits by x
12、enon arc discharge. (3) emission part The part composed of a xenon arc lamp and a filter. 3, Classification Test apparatuses shall be classified on the basis of whether or not a spray apparatus is provided, into the following two types: (1) (2) Xenon arc lamp light-exposure apparatus (hereafter refe
13、rred to as type XF). Xenon arc lamp light-and-water-exposure apparatus (hereafter referred to as type XW). The main specifications of apparatuses of these two types shall be in accordance with Table 1. Table 1. Main specifications of test apparatuses Class Type xw Xenon arc lamp Water cooling or air
14、 cooling Water cooling or air cooling 4 . Performance Number Test piece of holding lamps apparatus 1 or Rack system more or rotary than 2 board system I 1 or Rack system more or rotary than 2 board system I Spray appa- ratus No Yes Blower Temper- mechanism ature adjust- ment In termitten t or contin
15、u- ous blower type Continuous blower type Yes Yes I Humidity adjustment Automatic control type or non- control type Automatic control type or none 4.1 follows: Light irradiation The light irradiation of test apparatus shall be as COPYRIGHT Japanese Standards Association Licensed by Information Handl
16、ing Services COPYRIGHT Japanese Standards Association Licensed by Information Handling Services J I S 8*7754 91 W 4933608 0500694 B = 3 B 7754-1991 (1) Spectral characteristics of emission part The xenon arc lamp shall have a continuous spectrum at least over the wavelength range of 250 to 1200 nm,
17、and shall irradiate light various rises according to the assembly of the filter. An example is shown in Informative Reference Fig. 3. Informative Reference: The spectral transmissivities ( ) of filters (examples) are shown in Informative Reference Table 1 below. Informative Reference Table 1 Spectra
18、l transmissivity % Class of filter 300 nm 320 nm 400 nm 700 nm 1000 nm Quartz glass Min; 90 Min. 90 Min. 90 Min. 901 Min. 90 1 Min. 85 I Glass filter for insulating ultraviolet radiation (I) Min. 90 Min. 90 Min. 90 Il Max. 2 Min. 35 Min. 75 Max. 20 Min. 90 Min. 90 Min. 90 1 Glass filter for insulati
19、ng ultraviolet radiation (II) O O Glass filter for insulating infrared radia tion Min. 50 Min. 80 Max. 75 Max. 7 II Min. O Min. 20 Glass for insulating ultraviolet radiation and infrared radiation Min. 80 Max. 70 Max. 5 * I I O O Max. 20 Note ( 1 ) The spectral transmissivity (at ordinary temperatur
20、es) before use is given. (2) Indication of irradiance ( 4 , of test piece surface ( 3, of test apparatus, indicate by a diagram the spectral irradiance of test piece surfaces in the wavelength range of at least 300 to 800 nm, and mark the irradiance in the wavelength of 300 to 400 nm, Upon agreement
21、 between the parties concerned, the irradiance in other wavelength ranges or the spectral irradiance at a specific wavelength should also be marked. For each type - The measuring method is to be in accordance with the annex. Notes ( 3 ) Surface of the test piece holder. ( 4 ) Value (initial value) a
22、n assembly of a new xenon arc lamp and a filter aged for approx. 20 h. COPYRIGHT Japanese Standards Association Licensed by Information Handling Services COPYRIGHT Japanese Standards Association Licensed by Information Handling Services J I S 887754 91 4933608 0500b95 T = 4 B 7754-1991 (3) Tolerance
23、 in irradiance during operation With automatic control, it shall be capable of maintaining f 10 % of the set irradiance. With manual adjustment, it shall be capable of being regulated to within rt 10 % of the set irradiance. (4) Tolerance in irradiance of test piece surfaces irradiances of test piec
24、e surfaces due to the position must not exceed 10 % of the maximum value. The difference of (5) Light-and-dark cycles ( 5 ) of 3,8 h irradiation (light) and 1 h quenching (dark). and humidity during irradiation shall be as given in 4.2, and the humidity during quenching shall be able to be set to 95
25、 f 5 % humidity. apparatus for test piece surfaces shall not be used. I t is capable of setting cycles of at least The temperature Spray Note (5) This applies when provided with a light-and-dark cycle apparatus. 4.2 Temperature and humidity The temperature and humidity of the inside of the test tank
26、 shall be indicated by the adjustable black panel temperature and the relative humidity and, as follows: (1) Adjustable black panel temperature and its adjustable accuracy one of the following conditions must be 1 satisfied: At least (a) (b) (c) 63 f 3C (indicating temperature by type A black panel
27、thermometer) 83 * 3C (indicating temperature by type A black panel thermometer) 50 -I: 3C (indicating temperature by type A black panel thermometer) (d) 70 f 3C (indicating temperature by type B black panel thermometer) Upon agreement between the parties concerned, the temperature and adjusting accu
28、racy may be changed. Remarks: The temperature differs with the type of xenon arc lamp and filter combination. type of black panel thermometer used. The indicating temperature differs with the (2) Adjustable relative humidity and adjusting accuracy ( 6 ) For each indicating temperature specified in (
29、I ), the relative humidity should be capable of being adjusted to 50 f 5 %. The measuring position of the relative humidity shall be near the air outlet in the test tank. Upon agreement between the parties concerned, it may be a different relative humidity. Note ( 6, Humidity adjusting apparatus app
30、lies to automatic control systems. COPYRIGHT Japanese Standards Association Licensed by Information Handling Services COPYRIGHT Japanese Standards Association Licensed by Information Handling Services J I S 8*:7754 71 E 4733608 O500696 1 E 5 B 7754-1991 I 4.3 SDraving of the test Diece surface SDrav
31、ing. of the test Diece surface shall be as follows: (i) Methods of irradiation and spraying shall be able to be set. At least the following three classes (a) 120 min cycle: spraying for 18 min. 60 min cycle: spraying for 12 min. Irradiation for 102 min, followed by irradiation and (b) Irradiation fo
32、r 48 min, followed by irradiation and (c) No spraying: f 0.5 min. Irradiation only the time shall be to a precision of (2) Range and tolerance of setting the spray water For a spray pressure of 0.1 MPa, this shall be either 0.53 f 0.10 L/min or 0.08 * 0.01 /min per nozzle. concerned. This may be cha
33、nged upon agreement between the parties 5. Construction. dimensions and materials 5.1 Construction Test apparatus shall be constructed of a test tank, emission part, xenon arc starting and stabilizing apparatus, irradiance adjusting apparatus, temperature adjusting apparatus, humidity adjusting appa
34、ratus ( 7), test piece holder, test piece surface sprayer ( ), cooling apparatus, instrumentation apparatus, etc. Notes ( 7, This applies to test apparatus provided with a humidity adjusting apparatus. This applies to light-and-water-exposure apparatus. The test tank shall have a chamber for carryin
35、g out irradiation ( 8 , 5.2 Test tank of light to test pieces or, with type W, for also carrying aut water spraying, with a built-in emission part, rotary frame, spray nozzle, etc., and, shall be so constructed that the temperature or temperature and humidity can be adjusted. The material of the ins
36、ide wall of test tank shall be SUS 304 specified in JIS G 4305 or A 1100 P specified in JIS H 4000 treated for corrosion resistance or materials equivalent or superior to these in quality. The relative positions of the emission part, test piece holder, and spray nozzle are shown in Informative Refer
37、ence Fig. 1. 5.3 Emission part The emission part shall be as.follows: (i) Xenon arc lamp Xenon arc lamps are long arc lamps of a.c. burning in which electrodes are sealed-in both ends of a quartz tube and xenon gas is sealed-in inside, and are used with performing forced water cooling or forced air
38、cooling. COPYRIGHT Japanese Standards Association Licensed by Information Handling Services COPYRIGHT Japanese Standards Association Licensed by Information Handling Services ?i ! J I S BU7754 91 4933608 O500697 3 I 6 B 7754-1991 (2) Filter Filters are used for obtaining the required spectral charac
39、teristics and for cooling the xenon arc lamp. ultraviolet part and the infrared part, glass filters for ultraviolet-radiation insulation, glass filters for inf rared-radiation insulation, running water, etc., are used. For insulating the (3) Other resistance, corrosion resistance, humidity resistanc
40、e, or electric insulation shall be used. Based on the portion to be used, material superior in heat A summary of the emission part is shown in Informative Reference Fig. 2. 5.4 Xenon- arc starting and stabilizing apparatuses The xenon arc starting apparatus is used for starting the xenon arc lamp an
41、d shall be capable of generating the required high voltage pulses. is for maintaining the stabilized xenon arc for a long time and shall be composed of a transformer, input voltage regulator, reactor, etc. The xenon arc stabilizing apparatus 5.5 Irradiance adjusting apparatus The irradiance adjustin
42、g apparatus is an apparatus to correct the attenuation of radiation energy accompaning the use of a xenon arc lamp and filter, and shall be provided with one of the following condit ions: (1) It shall be capable of manual adjustment of the lamp power stepwise according to the time of use. It shall b
43、e capable of manual adjustment of the lamp power to make the irradiance constant by measuring the irradiance or radiant exposure quantity. (2) (3) It shall be capable of automatic control of the lamp power to make the irradiance constant by detecting the fluctuation in irradiance. 5.6 Light-and-dark
44、 cycle apparatus The light-and-dark cycle apparatus shall be capable of setting the conditions of the specified black panel temperature and relative humidity by repeatedly burning and extinguishing at the specified time rate. 5.7 Temperature adjusting apparatus The temperature adjusting apparatus is
45、 . for adjusting the air temperature in the test tank in order to make the indication of the black panel thermometer constant, and is constructed of a blowing mechanism, black panel thermometer, and temperature adjuster. In order to regulate the air flow, it shall be provided with an air deflector o
46、r The blowing mechanism, black panel thermometer, and temperature adjuster shall shall have equivalent performance. be as follows: (1) Blowing mechanism The blowing mechanism is for feeding air into the test tank, and is divided into intermittent and continuous blowing types. The air inlet shall, as
47、 required, be provided with an air filter for preventing dust entry. COPYRIGHT Japanese Standards Association Licensed by Information Handling Services COPYRIGHT Japanese Standards Association Licensed by Information Handling Services J I S B*7754 71 4733608 0500678 5 7 B 7754-1991 (2) Black panel t
48、hermometer Classification following two types. Black panel thermometers are classified into the Type A Type A is so structured that the heat sensitive body, bimetal, platinum resistor, thermistor, thermoelectric couple, etc., is attached coincident with the center of the metal plate and is adhered t
49、ightly to the heat sensitive body protecting tube. Type B is so structured that the heat sensitive body, platinum resistor, thermistor, etc., is attached coincident with the center of the back face (opposite side of the irradiation surface) of the metal plate, and is adhered tightly to the plastic insulating material to the metal face. A clearance of approx. 1 mm shall be provided between the heat-sensitive body and the heat insulating member. Type B The metal plate and heat-sensitive body protective tube used shall be SUS 304 specified in JIS G 4305 a