Downloaded from https://www.everyspec.com MIL-STD-8iOD 19 JuIY.1983 c. ~. The test item configuration should be the’same as .ibs configuration during exposure to solar radiation. The orientation of the teat item relative to the direction of radiation will have a significant”impact on o the heating effects, as will its ounting (on supports or on a substrate of specified properties, e.g., a layer of ,concreteof specified thickness or a sand bed of certain reflectivity). d. ~. Review the “requirementsdocument(s). Apply additional guidelines appropriate. any I-4 ~. . I-4.1 Efd.l,ureanal&La (See General Requirements, 4.5.7.) a. Proced@.
Both at peak temperature and after return to standard ambient conditions, the performance Characteristic of the test item will not .>. be altered to the extent that the test item doea not meet ita requirements. Actinic effects that do not affeet performance, durability, or required characteristics will be recorded as observations only. b. ~edure II. The performanceand characteristics (such as color or other surface conditions) of the test item will not be altered to the extent’ that the teat item doea not meet requirements. Actinic effects that do not affect performance, durability, or required characteristics will be recorded as observations only.
The fading of colors could result in higher heating levels” within the test item. I-4.2 ~. The fOllowing information is required in the teat plan for adequate conduct of the teata of section II. e . a. Test item configuration and orientation. b. Teat procedure. c. Location of temperature sensors. d. Number of cycles. e. Appropriate diurnal cycle (for procedure I). f. Spectral radiation of the source. 8. Test item preparation (aee 11-1.2b). h. Test item operational requirements (see II-3.1, step 2). i. Additional guidelines. ,: 1-5 ~ Devel~ of MaLeriel fQc 1 August 1979. MSTHOD 505.2, 19 JU~Y 1983 505.2-8