This Draft Uganda Standard, DUS , is based on ASTM E – . ASTM Standards volume information, refer to the standard’s Document Summary . Fourier Transform Infrared Spectrometry ASTM E, ASTM E FTIR can generate an infrared spectral scan of samples that absorb infrared light. Scope. ASTM E – FTIR ANALYSIS TESTING SERVICES – ASTM E is a method of identifying organic compounds by FTIR analysis.
|Published (Last):||9 November 2014|
|PDF File Size:||12.61 Mb|
|ePub File Size:||11.39 Mb|
|Price:||Free* [*Free Regsitration Required]|
FTIR can generate an infrared spectral scan of samples that absorb infrared light.
Fourier Transform Infrared Spectrometry ASTM E168, ASTM E1252
The better the match, the higher the certainty for a correct identification of the unknown polymer. However, an FTIR spectral scan alone should not be expected to identify the type of Nylon or Polyester, identify a Polypropylene or Acetal as a homopolymer or copolymer, or determine whether the Polyethylene is a high density or low density material.
ASTM E1252 – FTIR ANALYSIS TESTING SERVICES
Find Similar Items This product falls into the following categories. Matching the unknown infrared spectrum to known spectra can be done manually or with the help of a computerized program. A solvent wash involves using a solvent asfm is nondestructive r1252 the sample. Identify the primary component of a plastic, rubber, or organic material. You may experience ast, viewing this site in Internet Explorer 9, 10 or Enabling you to identify and mitigate the intrinsic risk in your operations, supply chains and business processes.
Materials with similar organic bonds but different molecular weights such qstm hydrocarbon oil, paraffin wax, low density polyethylene, and high density polyethylene can have similar spectra. FTIR can identify the difference between materials, such as polypropylene and polyethylene, which are made of only carbon and hydrogen but have different types of bonds between the elements.
Send us a request Wilton UK: Computerized spectral searches can quickly compare an unknown spectrum to a very large number of spectra located in multiple databases in a very short period of time.
The resulting spectral scan absorbance or transmittance is usually specific to a general class of material. Certification Formally confirming that your products and services meet all trusted external and internal standards. A typical infrared scan is generated in the mid-infrared region of the light spectrum. A spectral scan of a reference material can be generated and stored in a spectral library database.
Fourier Transform Infrared Spectrometry ASTM E, ASTM E
This website is best viewed with browser version of up to Microsoft Internet Explorer 8 e12252 Firefox 3. Auditing Consulting Sourcing Training.
Assurance Enabling you to identify and mitigate the intrinsic risk in your operations, supply chains and business processes. A stored reference scan will allow all future material scans to be compared back to the same earlier scan.
Assurance Testing Inspection Certification. Computer matching programs have difficulties with subtle differences that can be critically important. Materials with large quantities of carbon carbon black or carbon fiber are difficult to obtain a usable spectral scan from because carbon strongly absorbs infrared light in a broad range of frequencies.
The amount of contamination that can be detected depends on the spectral scans of the base polymer and the contaminant. Click to learn more. Computer programs are very helpful for comparing unknown spectral scans to those of known materials, but computer selected matches can be misleading.
Formally confirming that your products and services asym all trusted external and internal standards. Cannot detect the bonds present in most inorganic materials such as metals and some minerals. FTIR is the first logical step in identifying a polymer. Samples, which can be easily tested by reflective FTIR, include polymer pellets, parts, opaque samples, fibers, powders, wire coatings, and liquids.
Unknown spectral scans can be analyzed to determine the base material of asgm unknown by comparing their scan to spectral scans of known materials that are stored in a computer-based library. Global Reach Intertek is the industry leader qstm over 42, people in 1, locations in asttm countries.