耐候性试验
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18566398802ASTM C1442主要是针对使用人工老化设备对密封剂进行测试的方法:
本测试方法包括三种实验室加速老化曝露程序,评估太阳光辐射、热和潮湿对密封剂的影响。
1.1 This practice covers three types of laboratory weathering exposure procedures for evaluating the effect of actinic radiation, heat, and moisture on sealants.
1.2 The exposure sources used in the three types of artificial weathering devices are the filtered xenon arc, fluorescent ultraviolet lamps, and open flame carbon arc based on Practices G155, G154, and G152, respectively.
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are provided for information only.
1.4 The ISO standard related to this Practice is ISO 11431. Significant differences exist between the procedures. The ISO specimens are exposed through glass and are elongated prior to examination for loss of adhesion or cohesion, or both, following exposure.
1.5 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.
ISO Standard
ISO 11431 Building Construction--Sealants: Determination of Adhesion/Cohesion Properties After Exposure to Heat and Artificial Light Through Glass and to Moisture Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036.
ASTM Standards
C717 Terminology of Building Seals and Sealants
G113 Terminology Relating to Natural and Artificial Weathering Tests of Nonmetallic Materials
G141 Guide for Addressing Variability in Exposure Testing of Nonmetallic Materials
G147 Practice for Conditioning and Handling of Nonmetallic Materials for Natural and Artificial Weathering Tests
G151 Practice for Exposing Nonmetallic Materials in Accelerated Test Devices that Use Laboratory Light Sources
G152 Practice for Operating Open Flame Carbon Arc Light Apparatus for Exposure of Nonmetallic Materials
G154 Practice for Operating Fluorescent Ultraviolet (UV) Lamp Apparatus for Exposure of Nonmetallic Materials
G155 Practice for Operating Xenon Arc Light Apparatus for Exposure of Non-Metallic Materials
温馨提醒:本ASTM C1442-14可能存在更新的版本,建议寻找ASTM C1442-14的发行商确认。
Q-SUN Xe-3-HSE氙灯老化试验箱具有全光谱光照功能、湿度控制以及喷淋功能,其命名规则为湿度控制(H)、喷淋(S)。
Q-SUN Xe-3-HSE 马上询价Q-SUN Xe-3-HCE是一款具有全光谱光照模拟、湿度控制以及制冷功能的氙灯老化试验机,其命名规则为湿度控制(H)、制冷功能(C)。
Q-SUN Xe-3-HCE 马上询价QUV是美国Q-lab公司的注册商标,也是Q-lab公司紫外加速老化设备的统称,包含QUV/basic、QUV/se、QUV/spary、QUV/cw四个不同型号的产品。
QUV 马上询价Q-SUN Xe-3-HDSE氙灯耐气候试验箱具有湿度控制、以及双喷淋功能,其命名规则为湿度(H)、双喷淋(D)、喷淋(S)。
Q-SUN Xe-3-HDSE 马上询价