本标准在指定名称ASTMG155标准的基础上发布,紧跟名称的数字为标准首次批准年限, 如该标准属复审,该数字则表明最后一次复审的年限。上标字母ε表示最近一次的复审或重 新通过后的编辑更改。 1.范围 1.1本标准描述了根据材料或产品特性的要求将样品曝晒于氙弧灯和溶液装置用来模拟自 ...
Other cycles may give a better simulation of the effects of outdoor TABLE X3.1 Common Exposure Conditions Cycle 1 Filter Daylight Irradiance 0.35 W/m · nm 2 Wavelength 340 nm Exposure Cycle 102 min light at 63°C Black Panel Temperature 18 min light and water spray (air temp. not ...
G26 Test Cycle Description for Corresponding Test Cycle In G155 G 26, Method A — Continuous light with intermittent water spray Three cycles in G155, Table X3.1 use continuous light and the same water spray times as the conditions described in G26, Method A The following test cycle is th...
Lastly, the test conditions are the same as those described in cycle 1 of the ASTM G155 practice. Typical Experimental parameters for ASTM D6551 testing: The number of samples required is three and their size will depend on the subsequent evaluation method. The specifications of the test are ...
Lastly, the test conditions are the same as those described in cycle 1 of the ASTM G155 practice. Typical Experimental parameters for ASTM D6551 testing: The number of samples required is three and their size will depend on the subsequent evaluation method. The specifications of the test are ...
The results obtained according to this practice are valid only for the exposure cycle used for the round-robin and cannot be applied to the same weathering reference material used in a different exposure cycle. The change in characteristic property of a reference material may be affected by the ...
The timing of a light/dark cycle. Choosing the appropriate parameters is essential to ensure meaningful results. There are predefined cycles that can be used in ASTM G154 tests. These cycles can be found in the table X2.1 of the test method. ...
Cycle 1: General Coatings Cycle 2: General Coatings Cycle 3: Exterior Pigmented Stains Cycle 4: Exterior wood Stains and clears Cycle 5: Marine enamels Cycle 6: Automotive exterior Cycle 7: Automotive interior Once the samples were exposed the coatings mechanical and aesthetical properties need to...
The results obtained according to this practice are valid only for the exposure cycle used for the round-robin and cannot be applied to the same weathering reference material used in a different exposure cycle. The change in characteristic property of a reference material may be affected by the ...
CycleNumberCycleDescriptionCTypicalIrradianceTypicalUses Panel,Temperature 1Continuouslight63±2°C0.35±0.02W/(m2·nm)at340nmGeneralcoatingsand 102minlightonlyat50%±5%RH145±4°F41.5±2.5W/m2from300-400nmhistoricalconventionG 18minlightandwaterspray/F Repeatcontinuously 218hcontinuouslightusing:63±2°...