GB/T 14634.1-2010 English PDFUS$139.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 14634.1-2010: Test methods of rare earth three-band phosphors for fluorescent lamps -- Part 1: Determination of relative brightness Status: Valid GB/T 14634.1: Historical versions
Basic dataStandard ID: GB/T 14634.1-2010 (GB/T14634.1-2010)Description (Translated English): Test methods of rare earth three-band phosphors for fluorescent lamps -- Part 1: Determination of relative brightness Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: H14 Classification of International Standard: 77.120.99 Word Count Estimation: 6,635 Date of Issue: 2010-08-09 Date of Implementation: 2011-05-01 Older Standard (superseded by this standard): GB/T 14634.1-2002 Regulation (derived from): National Standard Approval Announcement 2010 No.3 (Total No.158) Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China Summary: This standard specifies the determination of the relative brightness of the light rare earth trichromatic phosphor methods. This section applies to the determination of the relative brightness of the rare earth trichromatic phosphor in lamps. GB/T 14634.1-2010: Test methods of rare earth three-band phosphors for fluorescent lamps -- Part 1: Determination of relative brightness---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order. Test methods of rare earth three-band phosphors for fluorescent lamps Part 1. Determination of relative brightness ICS 77.120.99 H14 National Standards of People's Republic of China Replacing GB/T 14634.1-2002 Test methods of rare earth trichromatic phosphor lamps Part 1. Determination of relative brightness Part 1. Determinationofrelativebrightness Issued on. 2010-08-09 2011-05-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released ForewordGB/T 14634 "light rare earth trichromatic phosphors Test Method" is divided into seven sections. --- Part 1. Determination of relative brightness; --- Part 2. Determination of emission peak and color performance; --- Part 3. Determination of thermal stability; --- Part 4. Electric sensing particle size distribution measurement; --- Part 5. Determination of density; --- Part 6. Determination of specific surface area; --- Part 7. Determination of thermal quenching. This is Part 1. This section is GB/T 14634.1-2002 "Determination of relative brightness light rare earth trichromatic phosphors test method" amendment right. This section compared with the GB/T 14634.1-2002, the main changes are as follows. --- Increasing the precision of the terms; --- Standard text made editorial changes. This part of the National Standardization Technical Committee rare and centralized. This section is responsible for drafting units. Jiangmen City Branch Hang Industrial Co., Ltd.. Participated in the drafting of this section. Shanghai Yuelong New Material Co. Ltd., Xiamen Topstar New Materials Co., Ltd., Hangzhou Daming fluorescent material Ltd., Shaanxi Rainbow fluorescent materials company. The main drafters of this section. Hoang Thuy sweet, Chen Rao. The drafters of some of the participants. Zhang Fei, Daisy Ling, He Haiyan, Wang Wu Po. This part of the standard replaces the previous editions are. --- GB/T 14634.1-1993, GB/T 14634.1-2002. Test methods of rare earth trichromatic phosphor lamps Part 1. Determination of relative brightness1 ScopeGB/T 14634 provisions of this part of the determination of the relative brightness of the light rare earth trichromatic phosphor methods. This section applies to the determination of the relative brightness of the phosphor in trichromatic lamps.2 principle of the methodLight rare earth trichromatic phosphors emit visible light at 253.7nm UV excitation through by V (λ) function corrected photodetector Will convert it into a photocurrent or photovoltage, record the value, and then the same standard phosphor under the same conditions measured photocurrent or photovoltage Value comparison, the relative brightness of the light rare earth trichromatic phosphor.3 instruments and apparatus3.1 of the sample excitation, measurement conditions 3.1.1 "0/d" refers to the excitation light direction perpendicular to the sample surface, sample fluorescence was collected by an integrating sphere. Integrating sphere wall is coated with non-fluorescent neutral Man Reflective material, reflectance (80 ± 5)%. 3.1.2 "45/0" refers to the direction of the excitation light and the sample surface normal direction at 45 °, the direction perpendicular to the receiving surface of the sample. 3.1.3 "0/45" refers to the excitation light direction perpendicular to the sample surface, the direction of accepting the sample surface normal 45 °. 3.2 Instrument Principle Instrument principle is shown in Figure 1. figure 1 3.3 excitation light source Emitting 253.7nm ultraviolet low pressure mercury lamp, power of 2W ~ 20W, with 253.7nm UV filter, the filter Peak transmittance greater than 10%, in the wavelength range of 300nm ~ 800nm \u200b\u200btransmittance of not more than 0.1%; the excitation of the light source is not stable Less than 0.2%. 3.4 Sample Tray Made of stainless steel, diameter ≥20mm, edge width ≤0.5mm, depth ≥3mm. 3.5 photodetectors Relative spectral responsivity and V (λ) consistent spectral responsivity of the detector line with a V (λ) photodetector requirements. 3.6 meter reading Reading instrument linearity better than 0.2%, the standard phosphors, the instrument displays the maximum reading of not less than 100, the resolution is not less than 0.1. 3.7 standard phosphor selection According to Table 1, selecting the sample to be tested corresponding standard phosphor. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 14634.1-2010_English be delivered?Answer: Upon your order, we will start to translate GB/T 14634.1-2010_English as soon as possible, and keep you informed of the progress. 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