ECSS-Q-ST-70-03C, SPACE PRODUCT ASSURANCE: BLACK-ANODIZING OF METALS WITH INORGANIC DYES (31-JUL-2008)

ECSS-Q-ST-70-03C, SPACE PRODUCT ASSURANCE: BLACK-ANODIZING OF METALS WITH INORGANIC DYES (31-JUL-2008)., Passive thermal control systems onboard spacecraft are often based on the thermo‐optical properties of the surfaces, namely emissivity and absorbance. The ratio of these two properties defines the equilibrium temperature of the surface. This Standard provides requirements for black‐anodizing surface treatment applied on metallic surfaces to achieve an emissivity versus absorbance ratio close to unity, as requested for many applications.