



透光率相关标准参考信息
GB/T 14571.4-2022 工业用乙二醇试验方法 第4部分:紫外透光率的测定 紫外分光光度法
简介:
信息:ICS:71.080.60 CCS:G16 发布:2022-04-15 00:00:00.0 实施:2022-11-01 00:00:00.0
KS M ISO 22891-2020 纸 - 测定透光率的漫反射的测宽
简介:
信息:ICS:85.060 CCS: 发布:2020-08-21 实施:
JC/T 782-2010 玻璃纤维增强塑料透光率试验方法
简介:本标准规定了测定玻璃纤维增强塑料透光率的试样、试验设备、试验环境条件、试验步骤及结果计算等。本标准适用于积分球法测定的透光率。
信息:ICS: CCS:Q23 发布:2010-11-22 实施:2011-03-01
GB/T 40415-2021 建筑用光伏玻璃组件透光率测试方法
简介:
信息:ICS:81.040.01 CCS:Q33 发布:2021-08-20 00:00:00.0 实施:2022-03-01 00:00:00.0
DB32/T 3792-2020 石墨烯薄膜透光率测试 透光率仪法
简介:本标准适用于化学气相沉积法制备的铜箔基底上的、覆盖均匀的石墨烯薄膜,和透明基底上的均匀覆盖的石墨烯薄膜的透光率测试。
信息:ICS:17.040.20 CCS:Q 53 发布:2020-05-25 实施:2020-06-25
JC/T 2020-2010 透光性精细陶瓷透过率的测试方法
简介:本标准规定了室温下块体透光性精细陶瓷的透过率利用分光光度计测量及积分球测量的原理、仪器设备、试样、试验步骤和结果计算等。本标准适用于下块体透光性精细陶瓷材料透过率的测试。
信息:ICS:81.060.30 CCS:Q32 发布:2010-11-22 实施:2011-03-01
GB/T 34323-2017 炭黑 水分散体透光率的测定 分光光度计法
简介:
信息:ICS:83.040.30 CCS:G49 发布:2017-09-07 00:00:00.0 实施:2018-04-01 00:00:00.0
ISO 26723-2020 塑料.总透光率和反射率的测定
简介:
信息:ICS:83.080.01 CCS: 发布:2020-04-15 实施:
JJF 1225-2009 汽车用透光率计校准规范
简介:本规范适用于汽车用透光率计(以下简称透光率计)的校准。本规范规定了透光率计的计量性能及校准方法。
信息:ICS: CCS:T39 发布:2009-07-10 实施:2009-10-10
GB/T 3780.15-2016 炭黑 第15部分:甲苯抽出物透光率的测定
简介:
信息:ICS:83.040.20 CCS:G49 发布:2016-12-13 00:00:00.0 实施:2017-07-01 00:00:00.0
KS M ISO 3858-2019 橡胶复合成分 - 炭黑 - 甲苯提取物透光率的测定
简介:
信息:ICS:83.040.20 CCS: 发布:2019-12-30 实施:
KS M ISO 3858-2009 橡胶配合剂.炭黑.甲苯萃取液透光率的测定
简介:이 표준은 톨루엔 추출물에 의해서 일어나는 변색을 측정하는 방법으로서, 고무 산업에 사용되
信息:ICS:83.040.20 CCS:G49 发布:2009-06-05 实施:2009-06-05
GB/T 31370.1-2015 平板显示器(FPD)彩色滤光片测试方法 第1部分:颜色和透光率
简介:GB/T 31370的本部分规定了平板显示器(FPD)彩色滤光片颜色、透光率的测试方法。本部分适用于平板显示器(FPD)用彩色滤光片颜色、透光率的测试。
信息:ICS:31-030 CCS:L90 发布:2015-02-04 实施:2015-10-01
ISO 13468-1-2019 塑料.透明材料总透光率的测定.第1部分:单光束仪器
简介:
信息:ICS:83.080.01 CCS: 发布:2019-06-05 实施:
KS M ISO 3858-2009 橡胶配合剂.炭黑.甲苯萃取液透光率的测定
简介:이 표준은 톨루엔 추출물에 의해서 일어나는 변색을 측정하는 방법으로서, 고무 산업에 사용되
信息:ICS:83.040.20 CCS:G49 发布:2009-06-05 实施:2009-06-05
GB/T 2566-2010 低煤阶煤的透光率测定方法
简介:本标准规定了测定低煤阶煤透光率用试剂和材料、仪器和设备、测定步骤、测定结果的表述和精密度。本标准适用于褐煤和低煤阶烟煤。
信息:ICS:73.040 CCS:D21 发布:2010-09-26 实施:2011-02-01
ISO 13468-1:2019 塑料.透明材料总透光率的测定.第1部分:单光束仪器
简介:
信息:ICS:83.080.01 CCS: 发布:2019-06-05 实施:
NF T45-138-2009 橡胶配合剂.炭黑.甲苯萃取液透光率的测定
简介:
信息:ICS:83.040.20 CCS:G49 发布:2009-04-01 实施:2009-04-11
GB/T 15972.46-2008 光纤试验方法规范.第46部分:传输特性和光学特性的测量方法和试验程序.透光率变化
简介:GB/T 15972的本部分规定了透光率变化的监测方法和试验程序。本部分适用于所有B类单模光纤和A类多模光纤成品光纤光缆的商业性检验。
信息:ICS:33.180.10 CCS:M33 发布:2008-03-31 实施:2008-11-01
ISO 3858:2018 橡胶复合成分 - 炭黑 - 甲苯提取物透光率的测定
简介:
信息:ICS:83.040.20 CCS: 发布:2018-06-04 实施:
BS ISO 3858-2008 橡胶合成配料.炭黑.甲苯萃取物透光率的测定
简介:
信息:ICS:83.040.20 CCS:G49 发布:2008-09-30 实施:2008-09-30
GB/T 14571.4-2008 工业用乙二醇紫外透光率的测定.紫外分光光度法
简介:本部分规定了工业用乙二醇在200nm~350nm波长范围内紫外透光率的测定方法。本部分并不是旨在说明与其使用有关的所有安全问题。因此,使用者有责任采取适当的安全与健康措施,并保证符合国家有关法规的规定。
信息:ICS:71.080.60 CCS:G16 发布:2008-02-26 实施:2008-08-01
ISO 3858-2018 橡胶配合剂.炭黑.甲苯萃取液透光率的测定
简介:
信息:ICS:83.040.20 CCS:G49 发布:2018-0501 实施:
ISO 3858:2008 橡胶配合剂——炭黑——甲苯提取物透光率的测定
简介:
信息:ICS:83.040.20 CCS: 发布:2008-09-01 实施:
GB/T 3780.15-2006 炭黑.第15部分;甲苯抽出物透光率的测定
简介:警告:使用本标准的人员应有正规实验室工作的实践经验。本标准并未指出所有可能的安全问题。使用者有责任采取适当的安全和健康措施,并保证符合国家有关法规规定的条件。 GB/T 3781的本部分规定了用分光光度计法测定炭黑甲苯抽出物透光率的原理、试剂、仪器、采样、试验条件、分析步骤、结果表示、精密度和试验报告。 本部分适用于橡胶用炭黑和色素炭黑。
信息:ICS:83.040.20 CCS:G49 发布:2006-08-01 实施:2007-01-01
ASTM D1494-17 ASTM D 6135-2003增强塑料板的漫透光率的标准试验方法
简介:
信息:ICS:83.120 CCS: 发布:2017-12-01 实施:
ISO 3858-2008 橡胶配合剂.炭黑.甲苯萃取液透光率的测定
简介:This International Standard specifies a method for the determination of the light transmittance of the tolueneextract from carbon black for use in the rubber industry, as a means of measuring the discolouration causedby the extractable matterThe light transmittance value provides an estimate of the degree of discolouration caused by the toluene-extractable matter present on the surface of the carbon black.This method may not be applicable to carbon blacks with a high extractable-matter content.
信息:ICS:83.040.20 CCS:G49 发布:2008-09 实施:
GB/T 3780.20-1997 橡胶用炭黑甲苯抽出物透光率的测定 产品鉴定法
简介:本标准规定了橡胶用炭黑甲苯抽出物透光率的测定。 本标准适用于橡胶用炭黑产品鉴定。
信息:ICS:83.040.20 CCS:G49 发布:1997-09-26 实施:1998-04-01
ASTM D1618-2017 可萃取炭黑甲苯萃取物透光率的标准试验方法
简介:4.1x00a0;The toluene discoloration value provides an estimate of toluene-soluble discoloring residues present on the carbon black. 1.1x00a0;This test method covers the measurement of the degree of toluene discoloration by carbon black extractables and is useful in controlling the reaction processes for production of carbon black. This test method may not be applicable to carbon blacks with high extractables. 1.2x00a0;The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.3x00a0;This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health and environmental practices and determine the applicability of regulatory limitations prior to use. 1.4x00a0;This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
信息:ICS:83.040.20 CCS:G49 发布:2017 实施:
ASTM D1494-97(2008)e1 ASTM D 6135-2003增强塑料板的漫透光率的标准试验方法
简介:
信息:ICS:83.120 CCS: 发布:2008-03-01 实施:
GB/T 3780.15-1997 橡胶用炭黑甲苯抽出物透光率的测定 快速法
简介:本标准规定了用分光光度计测定炭黑甲苯抽出物透光率的快速测定方法。 本标准适用于快速测定橡胶用炭黑甲苯抽出物的透光率。
信息:ICS:83.040.20 CCS:G49 发布:1997-09-26 实施:1998-04-01
KS B ISO 8599-2014(2019) 光学和光学仪器 - 隐形眼镜 - 光谱和透光率的测定
简介:
信息:ICS:11.040.70 CCS: 发布:2014-12-26 实施:
NF P50-771-1-2007 装有玻璃窗的遮阳设备.日光和光的透光率计算.第1部分:简化的方法
简介:
信息:ICS:17.180.20;91.120.10 CCS:Q70;P32 发布:2007-12-01 实施:2007-12-01
GB/T 2566-1995 低煤阶煤的透光率测定方法
简介:本标准规定了测定低煤阶煤透光率用的试剂、材料、仪器、设备,测定步骤,测定结果的表述和精密度。 本标准适用于褐煤和低煤阶烟煤。
信息:ICS:73.040 CCS:D21 发布:1995-08-07 实施:1996-04-01
ASTM D1003-13 透明塑料的雾度和透光率的标准测试方法
简介:
信息:ICS:83.140.99 CCS: 发布:2013-11-15 实施:
ASTM D1003-07 透明塑料的雾度和透光率的标准测试方法
简介:
信息:ICS:83.140.99 CCS: 发布:2007-11-01 实施:
GB/T 2410-1980 透明塑料透光率和雾度试验方法
简介:本方法适用于测定板状、片状、薄膜状透明塑料的透光率和雾度。
信息:ICS:83.080 CCS:G31 发布:1980-12-31 实施:1981-09-01
ISO 8980-3:2013 眼科光学——未切割成品眼镜镜片第3部分:透光率规范和试验方法
简介:
信息:ICS:11.040.70 CCS: 发布:2013-09-23 实施:
ASTM D1003-07e1 透明塑料的雾度和透光率的标准测试方法
简介:
信息:ICS:83.080.01 CCS: 发布:2007-11-01 实施:
GB/T 2410-2008 透明塑料透光率和雾度的测定
简介:本标准规定了透明塑料透光率和雾度的两种测定方法,方法A是雾度计法,方法B是分光光度计法。本标准适用于测定板状、片状、薄膜状透明塑料的透光率和雾度。
信息:ICS: CCS:G31 发布: 实施:2009-04-01
GOST ISO 3858-2013 橡胶配合剂. 炭黑. 甲苯萃取液透光率的测定
简介:
信息:ICS:83.040.20 CCS: 发布:2013 实施:2016-01-01
KS M ISO 13468-1-2007(2022) 塑料-透明材料总透光率的测定-第1部分:单光束仪器
简介:
信息:ICS:83.080.01 CCS: 发布:2007-09-20 实施:
GB 2410-1980 透明塑料透光率和雾度试验方法
简介:
信息:ICS: CCS: 发布: 实施:
ASTM D1494-12 ASTM D 6135-2003增强塑料板的漫透光率的标准试验方法
简介:
信息:ICS:83.120 CCS: 发布:2012-10-01 实施:
KS M ISO 13468-2-2007(2017) 塑料透明材料总透光率的测定第2部分:双光束仪器
简介:
信息:ICS:83.080.01 CCS: 发布:2007-09-20 实施:
ISO 13468-2-2021 双束仪器:透明的总透光率的材料 - 第2部分的塑料的测定
简介:
信息:ICS:83.080.01 CCS: 发布:2021-06-04 实施:
ASTM D1003-11 透明塑料的雾度和透光率的标准测试方法
简介:
信息:ICS:83.140.99 CCS: 发布:2011-04-15 实施:
KS M ISO 13468-2-2007(2022) 塑料-透明材料总透光率的测定-第2部分:双光束仪器
简介:
信息:ICS:83.080.01 CCS: 发布:2007-09-20 实施:
ISO 13468-2:2021 双束仪器:透明的总透光率的材料 - 第2部分的塑料的测定
简介:
信息:ICS:83.080.01 CCS: 发布:2021-06-04 实施:
ASTM D1003-11e1 透明塑料的雾度和透光率的标准测试方法
简介:
信息:ICS:83.080.01 CCS: 发布:2011-04-15 实施:
CNS 15091-2-2007 深层海水检验法-现场悬浮颗粒透光率之测量
简介:本标准规定深层海水现场海水悬浮颗粒透光率及经抽取至陆上出水口处悬浮颗粒透光率之检验。
信息:ICS:71.040.40 CCS: 发布:2007-06-26 实施:2007-06-26
ASTM D1003-21 透明塑料的雾度和透光率的标准测试方法
简介:
信息:ICS:83.140.99 CCS: 发布:2021-05-01 实施:
ASTM D1003-2011e1 透明塑料霾和透光率的标准试验方法
简介:Light that is scattered upon passing through a film or sheet of a material can produce a hazy or smoky field when objects are viewed through the material. Another effect can be veiling glare, as occurs in an automobile windshield when driving into the sun. Although haze measurements are made most commonly by the use of a hazemeter, a spectrophotometer may be used, provided that it meets the geometric and spectral requirements of Section 5. The use of a spectrophotometer for haze measurement of plastics can provide valuable diagnostic data on the origin of the haze, and Procedure B is devoted to the use of a spectrophotometer. Procedure A (hazemeter) test values are normally slightly higher and less variable than Procedure B (spectrophotometer) test values. Regular luminous transmittance is obtained by placing a clear specimen at some distance from the entrance port of the integrating sphere. However, when the specimen is hazy, the total hemispherical luminous transmittance must be measured by placing the specimen at the entrance port of the sphere. The measured total hemispherical luminous transmittance will be greater than the regular luminous transmittance, depending on the optical properties of the sample. With this test method, the specimen is necessarily placed at the entrance port of the sphere in order to measure haze and total hemispherical luminous transmittance. Haze data representative of the material may be obtained by avoiding heterogeneous surface or internal defects not characteristic of the material. Haze and luminous-transmittance data are especially useful for quality control and specification purposes. Before proceeding with this test method, reference should be made to the specification of the material being tested. Any test specimen preparation, conditioning, dimensions, or testing parameters, or combination thereof, covered in the materials specification shall take precedence over those mentioned in this test method. If there are no material specifications, then the default conditions apply.1.1 This test method covers the evaluation of specific light-transmitting and wide-angle-light-scattering properties of planar sections of materials such as essentially transparent plastic. Two procedures are provided for the measurement of luminous transmittance and haze. Procedure A uses a hazemeter as described in Section 5 and Procedure B uses a spectrophotometer as described in Section 8. Material having a haze value greater than 30 % is considered diffusing and should be tested in accordance with Practice E2387. 1.2 The values stated in SI units are to be regarded as standard. Note 18212;For greater discrimination among materials that scatter a high percent of light within a narrow forward angle, such as is the case with abraded transparent plastics, adjust the hazemeter and perform measurements in accordance with Test Method D1044. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Note 28212;This test method is not equivalent to ISO 13468-1 and ISO/DIS 14782.
信息:ICS:83.140.99 (Other rubber and plastic products) CCS:G31 发布:2011 实施:
DIN ISO 14490-5-2007 光学和光学仪器.望远系统的试验方法.第5部分:透光率用试验方法
简介:This part of ISO 14490 specifies the test methods for the determination of the transmittance of telescopic systems and observational telescopic instruments.
信息:ICS:37.020 CCS:N38 发布:2007-06 实施:
KS G ISO 4850-2021 焊接和相关技术的个人护目镜 - 过滤器 - 利用率和透光率要求
简介:
信息:ICS:13.340.20 CCS: 发布:2021-03-23 实施:
ASTM E971-2011 计算材料对太阳辐射的透光率和反光率的标准操作规程
简介:Glazed apertures in buildings are commonly utilized for the controlled admission of both light and solar radiant heat energy into the structure. Other devices may also be used to reflect light and solar radiant heat into a building. Most of the solar radiant energy entering a building in this manner possesses wavelengths that lie between 300 and 2500 nm (3000 to 25 000 ?/span>). Only the portion between 380 and 760 nm is visible radiation, however. In daylighting applications, it is therefore important to distinguish the solar radiant energy transmittance and reflectance of these materials from their luminous (visual or photometric) transmittance and reflectance. For comparisons of the energy and illumination performances of building fenestration systems it is important that the calculation or measurement, or both, of solar radiant and luminous transmittance and reflectance of materials used in fenestration systems use the same incident solar spectral irradiance distribution. Solar luminous transmittance and reflectance are important properties in describing the performance of components of solar illumination systems (for example, windows, clerestories, skylights, shading and reflecting devices) and other fenestrations that permit the passage of daylight as well as solar energy into buildings. This practice is useful for determining the luminous transmittance and reflectance of glazing materials and diffusely or quasi-diffusely reflecting materials used in daylighting systems. For the results of this practice to be meaningful, inhomogeneities or corrugations in the sample must not be large. Test Method E1175 (or Test Method E972) is available for sheet materials that do not satisfy this criterion.1.1 This practice describes the calculation of luminous (photometric) transmittance and reflectance of materials from spectral radiant transmittance and reflectance data obtained from Test Method E903. 1.2 Determination of luminous transmittance by this practice is preferred over measurement of photometric transmittance by methods using the sun as a source and a photometer as detector except for transmitting sheet materials that are inhomogeneous, patterned, or corrugated. 1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
信息:ICS:27.160 (Solar energy engineering) CCS:F12 发布:2011 实施:
TCVN 7737-2007 建筑玻璃.透光率,光反射率,太阳能总透射比和紫外线透射比的测定方法
简介:
信息:ICS: CCS: 发布:2007 实施:
KS G ISO 4851-2021 个人护目镜 - 紫外线过滤器 - 使用和透光率要求
简介:
信息:ICS:13.340.20 CCS: 发布:2021-03-23 实施:
ASTM D1003-2011 透明塑料混浊度和透光率的标准试验方法
简介:Light that is scattered upon passing through a film or sheet of a material can produce a hazy or smoky field when objects are viewed through the material. Another effect can be veiling glare, as occurs in an automobile windshield when driving into the sun. Although haze measurements are made most commonly by the use of a hazemeter, a spectrophotometer may be used, provided that it meets the geometric and spectral requirements of Section 5. The use of a spectrophotometer for haze measurement of plastics can provide valuable diagnostic data on the origin of the haze, and Procedure B is devoted to the use of a spectrophotometer. Procedure A (hazemeter) test values are normally slightly higher and less variable than Procedure B (spectrophotometer) test values. Regular luminous transmittance is obtained by placing a clear specimen at some distance from the entrance port of the integrating sphere. However, when the specimen is hazy, the total hemispherical luminous transmittance must be measured by placing the specimen at the entrance port of the sphere. The measured total hemispherical luminous transmittance will be greater than the regular luminous transmittance, depending on the optical properties of the sample. With this test method, the specimen is necessarily placed at the entrance port of the sphere in order to measure haze and total hemispherical luminous transmittance. Haze data representative of the material may be obtained by avoiding heterogeneous surface or internal defects not characteristic of the material. Haze and luminous-transmittance data are especially useful for quality control and specification purposes. Before proceeding with this test method, reference should be made to the specification of the material being tested. Any test specimen preparation, conditioning, dimensions, or testing parameters, or combination thereof, covered in the materials specification shall take precedence over those mentioned in this test method. If there are no material specifications, then the default conditions apply.1.1 This test method covers the evaluation of specific light-transmitting and wide-angle-light-scattering properties of planar sections of materials such as essentially transparent plastic. Two procedures are provided for the measurement of luminous transmittance and haze. Procedure A uses a hazemeter as described in Section 5 and Procedure B uses a spectrophotometer as described in Section 8. Material having a haze value greater than 30 % is considered diffusing and should be tested in accordance with Practice E2387. 1.2 The values stated in SI units are to be regarded as standard. Note 18212;For greater discrimination among materials that scatter a high percent of light within a narrow forward angle, such as is the case with abraded transparent plastics, adjust the hazemeter and perform measurements in accordance with Test Method D1044. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Note 28212;This test method is not equivalent to ISO 13468-1 and ISO/DIS 14782.
信息:ICS:83.140.99 CCS:G31 发布:2011 实施:
ASTM D1003-2007e1 透明塑料混浊度和透光率的标准试验方法
简介:Light that is scattered upon passing through a film or sheet of a material can produce a hazy or smoky field when objects are viewed through the material. Another effect can be veiling glare, as occurs in an automobile windshield when driving into the sun. Although haze measurements are made most commonly by the use of a hazemeter, a spectrophotometer may be used, provided that it meets the geometric and spectral requirements of Section 5. The use of a spectrophotometer for haze measurement of plastics can provide valuable diagnostic data on the origin of the haze, and Procedure B is devoted to the use of a spectrophotometer. Procedure A (hazemeter) test values are normally slightly higher and less variable than Procedure B (spectrophotometer) test values. Regular luminous transmittance is obtained by placing a clear specimen at some distance from the entrance port of the integrating sphere. However, when the specimen is hazy, the total hemispherical luminous transmittance must be measured by placing the specimen at the entrance port of the sphere. The measured total hemispherical luminous transmittance will be greater than the regular luminous transmittance, depending on the optical properties of the sample. With this test method, the specimen is necessarily placed at the entrance port of the sphere in order to measure haze and total hemispherical luminous transmittance. Haze data representative of the material may be obtained by avoiding heterogeneous surface or internal defects not characteristic of the material. Haze and luminous-transmittance data are especially useful for quality control and specification purposes. Before proceeding with this test method, reference should be made to the specification of the material being tested. Any test specimen preparation, conditioning, dimensions, or testing parameters, or combination thereof, covered in the materials specification shall take precedence over those mentioned in this test method. If there are no material specifications, then the default conditions apply.1.1 This test method covers the evaluation of specific light-transmitting and wide-angle-light-scattering properties of planar sections of materials such as essentially transparent plastic. Two procedures are provided for the measurement of luminous transmittance and haze. Procedure A uses a hazemeter as described in Section 5 and Procedure B uses a spectrophotometer as described in Section 8. Material having a haze value greater than 30 % is considered diffusing and should be tested in accordance with Practice E 167. 1.2 The values stated in SI units are to be regarded as standard. Note 18212;For greater discrimination among materials that scatter a high percent of light within a narrow forward angle, such as is the case with abraded transparent plastics, adjust the hazemeter and perform measurements in accordance with Test Method D 1044. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Note 28212;This test method is not equivalent to ISO 13468x2013;1 and ISO/DIS 14782.
信息:ICS:83.140.99 (Other rubber and plastic products) CCS:G31 发布:2007 实施:
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