Re: “American Society of Echocardiography Recommendations for Quality Echocardiography Laboratory Operations”

2011 ◽  
Vol 24 (8) ◽  
pp. 930
Author(s):  
Harvey Feigenbaum
Keyword(s):  
Echocardiography Laboratory ◽  
American Society

scholarly journals American Society of Echocardiography Recommendations for Quality Echocardiography Laboratory Operations

2015 ◽  
Vol 28 (3) ◽  
Author(s):  
Michael H. Picard ◽  
David Adams ◽  
S. Michelle Bierig ◽  
John M. Dent ◽  
Pamela S. Douglas ◽  
...  
Keyword(s):  
Echocardiography Laboratory ◽  
American Society

American Society of Echocardiography Recommendations for Quality Echocardiography Laboratory Operations

2011 ◽  
Vol 24 (1) ◽  
pp. 1-10 ◽  
Author(s):  
Michael H. Picard ◽  
David Adams ◽  
S. Michelle Bierig ◽  
John M. Dent ◽  
Pamela S. Douglas ◽  
...  
Keyword(s):  
Echocardiography Laboratory ◽  
American Society

Precision and bias in quantitative EDS: ASTM results

1992 ◽  
Vol 50 (2) ◽  
pp. 1654-1655
Author(s):  
John J. Friel
Keyword(s):  
Stainless Steel ◽  
Quantitative Analysis ◽  
Mechanical Alloy ◽  
Dead Time ◽  
Test Program ◽  
Round Robin Test ◽  
Wide Range ◽  
American Society ◽  
Takeoff Angle ◽  
Standardless Analysis

Committee E-04 on Metallography of the American Society for Testing and Materials (ASTM) conducted an interlaboratory round robin test program on quantitative energy dispersive spectroscopy (EDS). The test program was designed to produce data on which to base a precision and bias statement for quantitative analysis by EDS. Nine laboratories were sent specimens of two well characterized materials, a type 308 stainless steel, and a complex mechanical alloy from Inco Alloys International, Inconel® MA 6000. The stainless steel was chosen as an example of a straightforward analysis with no special problems. The mechanical alloy was selected because elements were present in a wide range of concentrations; K, L, and M lines were involved; and Ta was severely overlapped with W. The test aimed to establish limits of precision that could be routinely achieved by capable laboratories operating under real world conditions. The participants were first allowed to use their own best procedures, but later were instructed to repeat the analysis using specified conditions: 20 kV accelerating voltage, 200s live time, ∼25% dead time and ∼40° takeoff angle. They were also asked to run a standardless analysis.

Sign in / Sign up

Export Citation Format

Share Document