This standard specifies the determination method of the blue light whiteness of aluminum oxide, aluminum hydroxide and their chemical products under the standard illuminant D65 illumination, diffuse/vertical (d/0) or vertical/diffuse (0/d) optical geometry conditions. This standard is applicable to the determination of the whiteness index of aluminum oxide, aluminum hydroxide and their chemical products. Measurement range: WB70～99．9. YS/T 469-2004 Determination method of whiteness of aluminum oxide and hydrogenated aluminum oxide YS/T469-2004 Standard download decompression password: www.bzxz.net

People's Republic of China Nonferrous Metals Industry Standard YS/T469—2004
Determination of whiteness of alumina and aluminum hydroxid2004-06-17Promulgated
National Development and Reform Commission
2004-11-01Implementation
YS/T469—2004
This standard adopts the CIE1U64 supplementary standard color system of the International Commission on Illumination and the international standard (B/T3S7?Apply color table method GB/T7 standard illumination period and lighting observation case 3, GB/T97 object color section trace method>Related provisions, in 10 field of view, standard carbon fiber body L light source. Adopting the optical geometric conditions of no radiation/vertical (00 vertical/00). This standard adopts the blue light white method of CB/T1774. The formula of whiteness (R.) is used as the method to express the whiteness of aluminum oxide, aluminum oxide and its chemical products. At the same time, the common method of calculating the whiteness of aluminum oxide and its chemical products is proposed in the document. It is consistent with the local whiteness. This standard is in accordance with B/T3087. This standard specifies the color and photometric values ​​of powder boards. The whiteness is determined by comparing the total color of the product with the annual compensation or flow acid adjustment standard white board. The four numbers are used to determine the whiteness. A constant pressure powder area rod is used as the technical guarantee for the standard pressing of the standard white board and the sample white board. Appendix A of this standard is the material property appendix. The technical standard is proposed by the International Nonferrous Metals and Chemical Industry Committee and is under the jurisdiction of China National Nonferrous Metals Industry Co., Ltd. The company responsible for the standard is China Aluminum Corporation Limited Shandong Branch. The main persons in charge of this standard are: Chen Jingguan, Ping Xiaoshu, Bu Jiangyao, Li Linhai, Ding Guanwo, Mu Hongmei, Zhang Lian. The main witnesses of this standard are: Account Fengche, Zhao Fa, Gan Donghai, Li Documents: This standard is the official website of the National Nonferrous Metals Standardization Technical Committee. 1 Scope || tt || Aluminum oxide, aluminum hydroxide self-determination method YST469-2004 || tt || The public standard is "Calcium oxide, hydroxide Kaichang and other chemical products in the standard male lighting body T, lighting, diffuse / and direct (》 or multiplied by true / intensity and (0/) optical J River we select the following light users: Wood standard calcium oxide book and its chemical single preparation method Product effectiveness, with the use of: 70S9.9.2: Normative references
The following clauses become the current version of this standard with the introduction of this standard. For the referenced documents of the next period, all subsequent references (excluding errors) or static purchases do not apply to this standard. However, all parties that reach an agreement based on this standard are encouraged to use the new version of this document as soon as possible. For old documents that are not marked in the state, the version of the standard is recorded in the state. GB597? Color in the RT7% standard for the measurement of the color of objects and lighting components
GB:T3973
GB/T 5628
Terms of use
CB/T 6609.22
Oxidation chemical analysis methods and physical properties determination methods Sampling and preparation of samples GB:TE173 Numerical approximation rules
GB/T9337
H-10 negative 3D photometric measurement standard plate
Degree indication method
CB:I177
：1? Home page inspection procedures for whiteness meter
3 Terms and definitions
3.1 Reflection factor of an object and other meanings of color 151553. The reflection factor of an object refers to the ratio of the luminous flux reflected from the object to the light flux or luminous flux reflected from a completely diffuse reflecting surface under specific lighting conditions in a three-dimensional pattern.
3.2 Using the definition of 137, that is,
white background
represents the color of the object. The larger the value, the greater the degree of coverage, that is, the reflection factor of the object is. The total reflection diffuse light is equal to: 00
4 Method limit
This standard verifies the reflection number of the material plate to the effective wavelength of 5:10nm and 2nm blue light, and quantifies the difference between the standard plate emission factor and the chemical preparation method. 5 Instruments and standard samples
5.1 Whiteness meter
The whiteness meter adopts 1c standard field D light, the optical conditions are diffuse/vertical () or vertical/mirror, the light spectrum is 1
1S/T 463--7034
The effective wavelength is 51±2nm, the half-wave width is 14m, and the whiteness is tested according to 512, and the standard is frozen. 5.2 Sample Presser
Use 11Y-3 type or the same type as the national standard, but the powder delivery belt is required, and the degree is matched with the temperature: 20nm~.0m.
5.5 Whiteness Standard Sample
5.3.1 When the user pressure standard is GS A50U: the actual magnesium standard sample is used as the standard whiteness. 5.3.2 The iron oxide powder is washed according to 0.07. The whiteness standard sample is stored in the bottle, and the standard point film made by the constant pressure powder presser is used. The difference between the degree values ​​is not greater than V.2. 11℃-11C oven, place the oxidizing device in a standard air-conditioning system. If there is any damage to the body, please use it carefully. The device can be used to reduce pollution and garbage for ten years. You can use: 5.4 Working standard whiteboard
5.4.1 The sensitivity range of the test data is 1.1 As the standard whiteboard, calibrate the device according to the case. 5.1.2 Use three samples of the same low pressure as the sample, and a standard white plate of magnesium oxide powder. Use the same standard white plate as the sample. 5.4.3 The working cup should be calibrated at two points. Do not add any additives. Keep it in a dark place below the drying limit. If there is any contamination, replace it with clean cloth or cotton wool with anhydrous ethyl acetate. Dry it in a drying oven for 10 minutes, take it out, cool it in a dryer, and replace it with clean white magnesium oxide powder. Standard value: 5.5 Standard black
Standard simple reflection number is not greater than the center, the instrument factory is difficult to record: to prevent the effect of the mouth or the use of the sun dust. 6 Test selection
6.! According to (13/T66095 and H/166U0.23 for sampling and sample preparation, the uniformity and light room properties of the test particles should be maintained to prevent the peak from breaking and sticking during the storage of the whole part. 6.2 The test should be stored in the natural environment to prevent the formaldehyde and the spread of the test: aluminum and its chemical Chemical products in a cold room dryer, 6.4 Aluminum hydroxide and its chemicals, 4112_5Y drying ten 2 place in the cold room to keep the humidity. Specific steps
7.1 Test material
According to the test material plate technical control and thickness test details () 7.2 Determination times
Carry out three independent determinations, the average value is appropriate, 7.3 Preparation of suitable plate
Before making the plate, the new plate should be cleaned and dried. Material (-K sample (5.2, the operating procedures of the technical correct machine. Press the test plate, move the flying glass in the box from the sample plate surface, the black hand slope plate is the forming working surface, and check the piece condition under the light. The pressing product should be concave, without protrusions, no uniform marks, seven plastic teachings, no stains, 7.4 Determination of the test plate
According to the operating procedures of the breadth meter <1, ​​the flow block should be 47am regardless of the purchase liquid length, start the machine and stop the remaining performance, use the standard clean simple 2
YS/T 469-700.
(5.5; adjust the instrument to zero, use the standard plate (6.4) with the width close to that of the test plate (7.3) to calibrate the whiteness to the specified value. After calibration, the whitening number of each piece is accurately determined to 0.1. The calculation of the whitening result
is based on the formula: 1) Calculate the whitening degree of the test plate:
Ws = R =KR(A), F(A).
Where:
The optical center of the test grid
R--The harmonic response of the meter is measured under the point light strip with an effective wavelength of 457m+2L and a half-width of 44.
Normalization system, K=A>·
The latent reflection factor of the product
The corresponding blue light whiteness meter is divided into two parts (Table 1); the calculation of the position
9 precision
9. 1,Repeatability
The relative light distribution F(1)Fa>
given by the combination of the light source, optical system and detector of the blue light white meter is determined as the average value of the two independent tests under the repeatability conditions. If the absolute difference between the two test results exceeds 0, a new test is required. 9.2 The allowable difference between the actual test results shall not exceed 1.010 Quality Assurance and Control
The effectiveness of this method shall be checked once a week using the BS7001 iron oxide powder standard plate. When the process is under control, find out the original, correct the error, and check the new end.
YS/T469-2004
Appendix 4
(Secret material quality record)
Other dimensions and calculation formulas used in the past The quality of the products that have not been determined by the store and the development of foreign trade, oxidation, point aluminum oxide and its chemical products are measured and calculated by the following methods, but they should be noted in the standard or visual inspection report. 4.1 Brief description of the method
This method adopts the National Lighting Committee (C) S Supplementary Altar Class Color System\Site Standard T, and calculates the three-column micro value and color quality standard.
A.2 Measurement method
A. 2.1 Spectral photometric measurement is in accordance with (T/T 7!-1997 of i, 2 and 6. Now the danger is carried out, and the three micro values ​​XY..z..
A.2.2 The two micro values ​​are mainly measured according to the provisions of GR/39791907 7.3, and the three values ​​X.Ym.Z. are measured by dialing:
A.2.3 According to the provisions of A.3 or A.4, 1 calculate the whiteness W. Subtract W, A.3 Gan obtains the whiteness calculation method (CIF86)
A.3.1 Ganz self-degree W. The calculation formula
White W, according to the public A.1> calculation:
W. 1..80(...x.) -17(ay.u)
The sample is in the colorimetric system with absolute verticality: The sample is in the colorimetric system with three stimulus values ​​of "low e
The color change of the sample is in the xY color system with three stimulus values ​​of "low e
The color change of the sample is in the xY color system with absolute verticality: A.1
The full-color source is naturally in the X?2-color system with half the standard value, buy A. Table 1.1 The three-stimulus coordinates and three-color coordinates of the fully reflective body under P standard conditions
A.3.2H steamed white medical standard filmWww.bzxZ.net
The public A1) is the evaluation public of the white recommended by E, applicable to the following engraving range, 4℃W (5Y: 280, not used for color selection
A4 Hunter untur) whiteness formula
symbol (Hunter: formula w(A.2).
Wh = oya +
Henry's color index:
Henry's color index.
1s/T 469—204
When the viewing field is 1C and the standard image is D, the formulas are as shown in formulas A., (A4) and A5. = 10.
12. 2(1.05=nY)
0,5822:3
In (A.3), (A.1, (A.5), X:2 is the product in the XY.Z. colorimetric system: the best. A.3)
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