This standard specifies the terminology, codes, technical requirements, application methods and spectrum atlas of standard infrared spectra of aviation non-metallic materials. This standard is applicable to the main chemistry of all relevant brands of aviation non-metallic materials that are the same as this spectrum atlas. Infrared spectroscopic examination of ingredients.
HB 5490-1991 history
1992HB 5490-1991 Standard Spectrum Atlas of Infrared Spectrum of Aeronautical Non-metallic Materials Commodities