Potrebujeme váš súhlas na využitie jednotlivých dát, aby sa vám okrem iného mohli ukazovať informácie týkajúce sa vašich záujmov. Súhlas udelíte kliknutím na tlačidlo „OK“.
Standard Practice for Identification of Polymer Layers or Inclusions by Fourier Transform Infrared Microspectroscopy (FT-IR)
NORMA vydaná dňa 1.8.2018
Označenie normy: ASTM D5477-18
Dátum vydania normy: 1.8.2018
Kód tovaru: NS-857739
Počet strán: 4
Približná hmotnosť: 12 g (0.03 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Keywords:
Fourier transform infrared spectroscopy, microscopy, microsampling, cross-polarized,, ICS Number Code 83.140.20 (Laminated sheets)
Significance and Use | ||||||||||||
4.1 A speck will ultimately cause a failure to occur by virtue of its appearance in a film or by the decrease in electrical or mechanical properties in the polymer substrate (see Specification D1248). 4.2 The analysis of composite layers for barrier purposes by microscopic Fourier transform infrared spectroscopy (FT-IR) can indicate the adequacy of the barrier tape or indicate why a barrier may be defective (a missing layer or hole in the layer or poor coextrusion practice). Fig. 1 represents a typical multilayer film. FIG. 1 Position and Function of Materials in a Typical Multilayer Film |
||||||||||||
1. Scope | ||||||||||||
1.1 This practice describes the techniques used for detecting two different polymer entities such as: 1.1.1 Abnormal specks or spots on a surface or in the film that are objectionable as defects and 1.1.2 Layers of different polymeric sheets commonly used as barrier films made by coextrusion. 1.2 This practice utilizes through-transmittance optical and infrared techniques. 1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Note 1: There is no known ISO equivalent to this standard. 1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. |
||||||||||||
2. Referenced Documents | ||||||||||||
|
Chcete mať istotu o platnosti využívaných predpisov?
Ponúkame Vám riešenie, aby ste mohli používať stále platné (aktuálne) legislatívne predpisy
Chcete vedieť viac informácií ? Pozrite sa na túto stránku.
Posledná aktualizácia: 2024-05-05 (Počet položiek: 2 897 047)
© Copyright 2024 NORMSERVIS s.r.o.