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ASTM E2228-10
Standard Guide for Microscopic Examination of Textile Fibers
8 стр.
Заменен
Печатное изданиеЭлектронный (pdf)
96.72 $ (включая НДС 20%)
Разработчик:
Зарубежные/ASTM
ICS:
37.020 Optical. Including microscopes, telescopes, binoculars, optical materials, optical components and optical systems / Оптическое оборудование. Включая микроскопы, телескопы и т.д.
Сборник (ASTM):
14.02 Particle and Spray Characterization; Forensic Sciences; Accreditation & Certification; Forensic Psychophysiology; Nanotechnology; Forensic Engineering / Характеристика гранул и аэрозолей; Судебные науки; Аккредитация и сертификация; Судебная психофизиология; Нанотехнологии; Судебная инженерия
Тематика:
Forensic Sciences
Описание
Значение и использование

Microscopical examination is one of the least destructive means of determining rapid and accurate microscopic characteristics and generic polymer type of textile fibers. Additionally, a point-by-point, side-by-side microscopic comparison provides the most discriminating method of determining if two or more fibers are consistent with originating from the same source. This guideline requires specific pieces of instrumentation outlined herein.

Область применения

1.1 This section describes guidelines for microscopical examinations employed in forensic fiber characterization, identification, and comparison. Several types of light microscopes are used, including, stereobinocular, polarized light, comparison, fluorescence, and interference. In certain instances, the scanning electron microscope may yield additional information. Select which test(s) or techniques to use based upon the nature and extent of the fiber evidence.

1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

Ключевые слова:
fibers; forensic science; microscopic examination; Dispersion staining; Fibers; Forensic investigation/analysis; Manufactured fiber; Michel-L&cute;evy chart; Microscopic examination--textiles; Polarized light; Refractive index; Textile fiber (forensic) analysis; Birefringence