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This standard, consisting of five documents, applies to designers, suppliers, and users of optical network services, systems, and components within mobile military and commercial aerospace platforms. The standard applies to any optical network which uses Wavelength Division Multiplexing in...
This Aerospace Standard (AS) 5659/4 Physical Layer Specification provides guidance for the physical layer of optical networks which use Wavelength Division Multiplexing (WDM), within the AS5659 WDM LAN specification document family. The physical layer consists of the optical interconnections...
1.1 This test method specifies a single relatively simple method to implement, common integration technique, the Modified Trapezoid Rule, to integrate digital or tabulated spectral data. The intent is to produce greater consistency and comparability of weathering and durability test results between...
This test method covers the testing of the spectral bandwidth and wavelength accuracy of fluorescence spectrometers that use a monochromator for emission wavelength selection and photomultiplier tube detection. The method can be applied to instruments that use multi-element detectors,...
4.1 Measurement-The refractive index at any wavelength of a piece of homogeneous glass is a function, primarily, of its composition, and secondarily, of its state of annealing. The index of a glass can be altered over a range of up to 1×10-4?(that is, 1 in the fourth decimal place) by the...
1.1 This specification establishes the manufacturing design, manufacturing quality system and installation requirements for airborne infrared (IR) searchlight equipment, systems, and devices. This specification applies only to IR devices that produce incoherent IR radiation and affixed to an...
5.1 The bispectral or two-monochromator method is the definitive method for the determination of the general radiation-transfer properties of fluorescent specimens (2). In this method, the measuring instrument is equipped with two separate monochromators. The first, the irradiation monochromator,...
1.1 This test method covers the measurement of the ultraviolet absorption of a variety of petroleum products. It covers the absorbance of liquids or the absorptivity of liquids and solids, or both, at wavelengths in the region from 220?nm to 400?nm of the spectrum. 1.2 The use of this test...
5.1 This test method is intended to induce color changes in sealants, as well as their constituent pigments, associated with end-use conditions, including the effects of sunlight, moisture, and heat. The exposures used in this test method are not intended to simulate the color change of a sealant...
4.1 The activation spectrum identifies the spectral region(s) of the specific exposure source used that may be primarily responsible for changes in appearance and/or physical properties of the material. 4.2 The spectrographic technique uses a prism or grating spectrograph to determine the effect on...
4.1 Generally, Raman spectra measured using grating-based dispersive or Fourier transform Raman spectrometers have not been corrected for the instrumental response (spectral responsivity of the detection system). Raman spectra obtained with different instruments may show significant variations in...
1.1 This test method describes an apparatus and procedure that is suitable for measuring the transmissivity of large, thick, or curved transparent parts including parts already installed. This test method is limited to transparencies that are relatively neutral with respect to wavelength...
1.1 This practice covers the components of a wavelength dispersive X-ray spectrometer that are basic to its operation and to the quality of its performance. It is not the intent of this practice to specify component tolerances or performance criteria, as these are unique for each instrument....
1.1 This test method covers a procedure for the determination of the transmittance of monoethylene glycol (1,2-ethanediol; MEG) at wavelengths in the region 220?nm to 350?nm. The results provide a measure of the purity of the sample with respect to ultraviolet (UV) absorbing compounds. 1.2...
1.1 These tables contain terrestrial solar spectral irradiance distributions for use in terrestrial applications that require a standard reference spectral irradiance for hemispherical solar irradiance (consisting of both direct and diffuse components) incident on a sun-facing, 37° tilted surface...
1.1 This test method has been harmonized with, and is technically equivalent to, ISO 9059. 1.2 Two types of calibrations are covered by this test method. One is the calibration of a secondary reference pyrheliometer using an absolute cavity pyrheliometer as the primary standard pyrheliometer, and...
1.1 This test method covers the determination of several elements (including iron, nickel, sulfur, and vanadium) occurring in crude oils. 1.2 For analysis of any element using wavelengths below 190?nm, a vacuum or inert gas optical path is required. 1.3 Analysis for elements such as arsenic,...
1.1 This test method covers the wavelength dispersive X-ray fluorescence analysis of low-alloy steels for the following elements: Element Mass Fraction Range, % Calcium 0.001 to 0.007 Chromium 0.04 to 2.5 Cobalt 0.03 to 0.2 Copper 0.03 to 0.6 Manganese 0.04 to 2.5 Molybdenum 0.005 to 1.5...
1.1 This test method describes the analysis of magnesium and its alloys by atomic emission spectrometry. The magnesium specimen to be analyzed may be in the form of a chill cast disk, casting, sheet, plate, extrusion or some other wrought form or shape. The elements covered in the scope of this...
4.1 Wavenumber calibration is an important part of Raman analysis. The calibration of a Raman spectrometer is performed or checked frequently in the course of normal operation and even more often when working at high resolution. To date, the most common source of wavenumber values is either...
