ASTM E1421-99(2009) free download

09-28-2020 comment

ASTM E1421-99(2009),Standard Practice for Describing and Measuring Performance of Fourier Transform Mid-Infrared (FT-MIR) Spectrometers: Level Zero and Level One Tests.
ASTM E1421-99(2009) describes two levels of tests to measure the performance of laboratory Fourier transform mid-infrared (FT-MIR) spectrometers equipped with a standard sample holder used for transmission measurements.
ASTM E1421-99(2009) is not directly applicable to Fourier transform infrared (FT-IR) spectrometers equipped with various specialized sampling accessories such as flow cells or reflectance optics, nor to Fourier transform near-infrared (FT-NIR) spectrometers, nor to FT-IR spectrometers run in step scan mode.
8. Level One Tests
8.1 Nature of Test-A series of tests, which uses only the standard matte-finish polystyrene, designed to more com- pletely test the instrument performance. The main purpose of level one tests is to compare performance with previous result obtained on the same instrument. The tests can also be used to compare two instruments of the same model type and, with considerable caution, to roughly compare different models.
8.4 Measutrements—In level one, each test requires its own measurements.For comparisons involving a single instrument or model of instrument, choose any convenient measurement parameters, preferably those which reflect the operating param eters used for measurements of analytical samples. The param eters must always be the same for comparisons. On most instruments, use the stored parameter file for the original measurements as a way to get parameter consistency.
Download link:ASTM E1421-99(2009) free download

Note: Can you help me share this website on your Facebook or others? Many thanks!
AS ISO ASTM 52904:2021 pdf free Free AS Standards

AS ISO ASTM 52904:2021 pdf free

AS ISO ASTM 52904:2021 pdf free.Additive manufacturing - Process characteristics and performance - Practice for metal powder bed fusion process to meet critical applications. 5 Feedstock and Powder Batches 5.1 The material supplier shall package the powder...
Get More
AS ISO/ASTM 52901:2021 pdf free Free AS Standards

AS ISO/ASTM 52901:2021 pdf free

AS ISO ASTM 52901:2021 pdf free.Additive manufacturing - General principles - Requirements for purchased AM parts. 4.3.3 Tolerances The tolerances shall be specified (e.g. general tolerances, see ISO 2768-1 and ISO 2768-2, and/or specific, ISO 1101), including...
Get More
AS 2455.2:2019 pdf free download Free ASTM Standards

AS 2455.2:2019 pdf free download

AS 2455.2:2019 pdf free download.Textile floor coverings - Installation practice Part 2: Carpet tiles. 4 Pre-laying requirements 4.1 General Pre-laying requirements shall be in accordance with AS 2455.1. Prior to commencement, it should be ascertained that carpet...
Get More


Anonymous netizen Fill in information