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96 results found

SRM 1721 Southern Oceanic Air (Ambient Nominal Amount-of-Substance Fraction: Carbon Dioxide, Methane, Nitrous Oxide)

Data provided by  National Institute of Standards and Technology

Standard Reference Material-1721: Southern Oceanic Air. Ambient Nominal Amount of Substance Fraction for Carbon Dioxide, Methane & Nitrous Oxide. This Standard Reference Material (SRM) is a primary gas mixture for which the amount-of-substance fraction, expressed as concentration, may be related to secondary working standards. This SRM is intended for the calibration of instruments used for ambient carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O) determinations and for other applications. This data is public in the Certificate of Analysis for this material.

Tags: SRM,Standard Reference Material,Southern Oceanic Air,carbon dioxide,methane,Nitrous Oxide,CO2,CH4,N2O,amount of substance,Energy,Environment and Climate,

Modified: 2024-02-22

Views: 0

SRM 918c Potassium Chloride General and Ion Activity Standard

Data provided by  National Institute of Standards and Technology

This Standard Reference Material (SRM) is intended for use as an analytical standard of known purity. It is intended primarily for use in the calibration and standardization of procedures for potassium (K) and chloride (Cl-) determinations employed in clinical analysis, including those using ion-selective electrodes, and for routine critical evaluation of the daily working standards used in these procedures. This lot of potassium chloride (KCl) was prepared to ensure a material of high purity and homogeneity and has been assayed after heating at 110 degrees C to 120 degrees C.

Tags: SRM,Standard Reference Material,potassium chloride,

Modified: 2024-02-22

Views: 0

Certified values of iodine in CRMs of food matrices in mg/kg units. The uncertainties are expanded uncertainties at approximately 95% confidence.

Data provided by  National Institute of Standards and Technology

A comparison of the expanded uncertainty for certified values of iodine in food matrix CRMs. The CRMS were found by searching The European Virtual Institute for Speciation Analysis (EVISA) database using the terms "Iodine" and "Certified" in the Material category. The uncertainties are expanded uncertainties at approximately 95% confidence.

Tags: food,nutrition,dietary supplements,Standard Reference materials,reference materials,SRM,RM,Food and Nutrition,

Modified: 2024-02-22

Views: 0

Thermographic measurements of single and multiple scan tracks on nickel alloy 625 substrates with and without a powder layer in a commercial laser powder bed fusion process (an additive manufacturing technology)

Data provided by  National Institute of Standards and Technology

This dataset contains thermographic measurements acquired during single and multiple track scans on bare substrates and on single layers of powder. The substrates and powder are nickel alloy 625 and the experiments are performed inside a commercial laser powder bed fusion machine. There are four experiment cases: 1) a single scan track on a bare substrate, 2) a single scan track on a single hand-spread layer of powder, 3) multiple (39) scan tracks covering an area on a bare substrate, and 4) multiple (39) scan tracks solidifying a single hand-spread layer of powder.

Tags: additive manufacturing,powder bed fusion,laser,thermography,temperature measurement,melt pool,melt pool length,cooling rate,Inconel 625,IN 625,nickel alloy 625,model validation,

Modified: 2024-02-22

Views: 0

Additive Manufacturing Benchmark Test Series (AM-Bench) 2018 Test Descriptions

Data provided by  National Institute of Standards and Technology

The Additive Manufacturing Benchmark Test Series (AM-Bench) is developing a continuing series of controlled benchmark tests, in conjunction with a conference series, with two initial goals: 1) to allow modelers to test their simulations against rigorous, highly controlled additive manufacturing benchmark test data, and 2) to encourage additive manufacturing practitioners to develop novel mitigation strategies for challenging build scenarios.

Tags: Additive Manufacturing Benchmark Test Series (AM-Bench),additive manufacturing,model validation,nickel alloy 625,15-5 Stainless Steel,In Situ Measurements,Residual Stress,Distortion,microstructure,Laser Powder Bed Fusion,melt pool,

Modified: 2024-02-22

Views: 0

In Situ Thermography of Single Scan Tracks Performed on Nickel Super Alloy 625 for the 2018 Additive Manufacturing Benchmark Test Series (AM-Bench 2018): Powder Bed Fusion Commercial Build Machine

Data provided by  National Institute of Standards and Technology

These measurements were performed as part of the 2018 Additive Manufacturing Benchmark Test Series (AM-Bench), specifically supporting the melt pool geometry challenge (CHAL-AMB2018-02-MP) and cooling rate challenge (CHAL-AMB2018-02-CR).

Tags: additive manufacturing,benchmark tests,AMBench,AMBench 2018,powder bed fusion,nickel super alloy 625,IN625,thermography,temperature measurement,melt pool length,cooling rate,

Modified: 2024-02-22

Views: 0

In situ thermography of the metal bridge structures fabricated for the 2018 Additive Manufacturing Benchmark Test Series (AM-Bench 2018)

Data provided by  National Institute of Standards and Technology

These measurements were performed as part of the 2018 Additive Manufacturing Benchmark Test Series (AM-Bench). This dataset and the associated experiments are part of a continuing series of controlled benchmark tests, in conjunction with a conference series, with two initial goals, 1) to allow modelers of Additive Manufacturing processes to test their simulations against rigorous, highly controlled additive manufacturing benchmark test data, and 2) to encourage additive manufacturing practitioners to develop novel mitigation strategies for challenging build scenarios.

Tags: additive manufacturing,benchmark tests,AMBench,AMBench 2018,powder bed fusion,nickel super alloy 625,IN625,thermography,cooling rate,temperature,

Modified: 2024-02-22

Views: 0

Variation of Surface Topography in Laser Powder Bed Fusion Additive Manufacturing of Nickel Super Alloy 625

Data provided by  National Institute of Standards and Technology

This dataset provides surface height data from nickel super alloy 625 experiment samples built through laser powder bed fusion additive manufacturing. The experiment methodically varied part position and orientation relative to the build plate and recoater blade and details of the experiment and dataset are available in a Journal of Research at NIST article.

Tags: additive manufacturing,focus variation,IN625,Laser Powder Bed Fusion,nickel super alloy 625,surface texture,surface topography,

Modified: 2024-02-22

Views: 0

Albatross Species Chemical Database and Annotated Bibliography

Data provided by  National Institute of Standards and Technology

Database and annotated bibliography of contaminants in tissues from albatross (Family Diomedeidae) species. Database is saved as current Microsoft Access 365 .accdb file and a backward compatible to Access 2000 .mdb file and a Microsoft Excel .xlsx file which has the database output information, introduction with description of headers, and some derived data. A free viewer for Excel is at: https://www.microsoft.com/en-us/p/xlsx-viewer-free/9nblggh6hbf4?activet….

Tags: seabird,tissues,PAHs,PBDEs,PCBs,PCDDs,PCDF,perflourinated acids,phenols,toxicology pesticides,mercury,trace elements,heavy metals,organic,inorganic,chemistry,stable isotopes,Environment and Climate,

Modified: 2024-02-22

Views: 0

Additively manufactured CoCr lattice artifact -- 3D design

Data provided by  National Institute of Standards and Technology

SolidWorks Part file (CAD file) for a CoCr "lattice" structure additively manufactured in a laser bed powder fusion (LPBF) system at NIST.

Tags: additive manufacturing,CoCr,lattice structure,CAD drawing,

Modified: 2024-02-22

Views: 0