An Update on Standards Activity for Txrf and the Challenges Ahead

1995 ◽  
Vol 39 ◽  
pp. 767-770
Author(s):  
R. S. Hockett
Keyword(s):  
Surface Analysis ◽  
Technical Committee ◽  
International Standards ◽  
International Scale ◽  
The Status ◽  
American Society ◽  
International Standards Organization

Standards organizations active in surface analysis using TXRF and VPD/TXRF include: (a) American Society for Testing and Materials (ASTM), (b) Semiconductor Equipment and Materials International (SEMI), (c) Ultra Clean Society of Japan (UCS), and (d) International Standards Organization Technical Committee 201 (ISO TC/201). The standards activities are presently dynamic, and they are on an international scale, This paper provides an update on the status of these activities, and presents the challenges ahead yet to be resolved.

ISO Human-Computer Interaction Standards: Finding Them and What They Contain

2020 ◽  
Vol 64 (1) ◽  
pp. 400-404
Author(s):  
Paul Green
Keyword(s):  
Human Computer Interaction ◽  
Systems Engineering ◽  
User Interfaces ◽  
Task Force ◽  
Technical Committee ◽  
International Standards ◽  
Human System ◽  
International Standards Organization ◽  
Browsing Tool ◽  
Computer Interaction

An HFES Task Force is considering if, when, and which, HFES research publications should require the citation of relevant standards, policies, and practices to help translate research into practice. To support the Task Force activities, papers and reports are being written about how to find relevant standards produced by various organizations (e.g., the International Standards Organization, ISO) and the content of those standards. This paper describes the human-computer interaction standards being produced by ISO/IEC Joint Technical Committee 1 (Information Technology). Subcommittees 7 (Software and Systems Engineering) and 35 (User Interfaces), and Technical Committee 159, Subcommittee 4 (Ergonomics of Human-System Interaction), in particular, the contents of the ISO 9241 series and the ISO 2506x series. Also included are instructions on how to find standards using the ISO Browsing Tool and Technical Committee listings, and references to other materials on finding standards and standards-related teaching materials.

Revising and Validating Spectral Irradiance Reference Standards for Photovoltaic Performance Evaluation

Solar Energy ◽  
2002 ◽  
Author(s):  
Daryl R. Myers ◽  
Keith Emery ◽  
C. Gueymard
Keyword(s):  
Photovoltaic Performance ◽  
International Standards ◽  
Spectral Irradiance ◽  
International Electrotechnical Commission ◽  
Spectral Radiation ◽  
Atmospheric Physics ◽  
Additional Information ◽  
American Society ◽  
Consensus Standard ◽  
International Standards Organization

In 1982, the American Society for Testing and Materials (ASTM) adopted consensus standard direct-normal and global-tilted solar terrestrial spectra (ASTM E891/E892). These standard spectra were intended to evaluate photovoltaic (PV) device performance and other solar-related applications. The International Standards Organization (ISO) and International Electrotechnical Commission (IEC) adopted these spectra as spectral standards ISO 9845-1 and IEC 60904-3. Additional information and more accurately representative spectra are needed by today’s PV community. Modern terrestrial spectral radiation models, knowledge of atmospheric physics, and measured radiometric quantities are applied to develop new reference spectra for consideration by ASTM.

scholarly journals Improvised Long Test Lengths via Stitching Scale Bar Method:

2020 ◽  
Vol 125 ◽  
Author(s):  
Vincent D. Lee ◽  
Daniel Sawyer ◽  
Muralikrishnan Bala
Keyword(s):  
International Standards ◽  
Minimum Length ◽  
Laser Tracker ◽  
Test Length ◽  
American Society ◽  
International Standards Organization ◽  
Interim Testing

Performance verifications of laser tracker systems (LTSs) often rely on calibrated length artifacts that are 2.3 m in length or more, as specified in International Standards Organization (ISO) and American Society of Mechanical Engineers (ASME) standards. The 2.3 m length is chosen as the minimum length that will sufficiently expose inaccuracy in LTSs. Embodiment of these artifacts often comes in the form of scale bars, fixed monuments, or a laser rail. In National Institute of Standards and Technology (NIST) Internal Report (IR) 8016, which was published in 2014 and discusses interim testing of LTSs, it was shown that a scale bar with three nests spaced 1.15 m apart was sufficient for exposing errors in LTSs. In that case, the LTS was placed symmetrically with respect to the scale bar so that both a 2.3 m symmetrical length and a 1.15 m asymmetrical length were presented to the LTS. This paper will evaluate whether a scale bar that is only 1.15 m in length can sufficiently expose errors within the LTS when it is stitched together to create a 2.3 m long test length.

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