AS-128-82 Resolution on Promotion Policies

Adds procedures for ranking promotion candidates to RPT process

Industrial Fieldbus Improvements in Power Distribution and Conducted Noise Immunity With No Extra Costs

Industrial distributed control continues the move toward networks at all levels. At lower levels, control networks provide flexibility, reliability, and low cost, although perhaps the simplest but most important advantage is the reduced volume of wiring. Powered fieldbuses offer particular notable benefits in system wiring simplification. Nevertheless, very few papers are dealing with the potentials and limitations in power distribution through the bus cable. Only a few of the existent fieldbus standards consider this possibility but often simply as an option without enough technical specifications. In fact, nobody talks about it, but power distribution through the bus and conducted noise disturbances are strongly related. This paper points out and analyzes these limitations and proposes a new low-cost fieldbus physical layer that enlarges power distribution capability of the bus and improves system robustness. We show an industrial application on water desalination plants and the very good results obtained owing to the fieldbus. Finally, we present electromagnetic compatibility test results that verify improvements against electrical fast transients on the sensor/actuator connection side as disturbances usually encountered in harsh-environment industrial applications

Estimating the permeation resistance of nonporous barrier polymers to sulfur mustard (HD) and sarin (GB) chemical warfare agents using liquid simulants

"The purpose of this document is to report the results of the NIOSH Chemical Warfare Agent (CWA) Simulant Project that had the following goals: 1.) Identify chemicals (simulants) that simulate the permeation of Sarin (GB) and sulfur mustard (HD) through elastomeric barrier materials that are commonly used in respirators. 2.) Develop a convenient and reliable laboratory procedure (test method) that can be used by Personal Protective Equipment (PPE) manufacturers for estimating GB and HD permeation rates through barrier materials using the simulants. PPE manufacturers can use this method to screen and deselect candidate barrier materials during product development testing. Advancements in this research can benefit the first responder community by providing PPE manufacturers with information and testing techniques that will reduce the time and resources needed to engineer products that weigh less, have better permeation resistance, are less cumbersome, and could potentially be less expensive." - NIOSHTIC-21. Introduction -- 2. Procedures and Results -- 3. Discussion. -- 4. Summary -- References -- Bibliography: Application of solvent-solute parameters and solubility phase diagrams to chemical defense, unlimited distribution publications -- Appendix A: Standard test method for estimating permeation resistance of nonporous barrier polymers to liquid chemical warfare agents (GB and HD) using liquid simulants -- Appendix B: Liquid permeation cell mechanical drawings -- Appendix C: CWA permeation tablesDonald Rivin, Wendel J. Shuely, Frank Palya, Jr., Robert S. Lindsay, Axel Rodriguez, Philip W. Bartram."July 2008.""This document was prepared by the National Institute for Occupational Safety and Health (NIOSH), National Personal Protective Technology Laboratory (NPPTL) in collaboration with the U.S. Army Research, Development and Engineering Command (RDECOM) including their staff from the Edgewood Chemical Biological Center (ECBC) and the Natick Soldier Center (NSC). " - p. viiiAlso available via the World Wide Web as an Acrobat .pdf file (2.04 MB, 97 p.)Includes bibliographical references (p. 57-63)

Heterogeneous data source integration for smart grid ecosystems based on metadata mining

The arrival of new technologies related to smart grids and the resulting ecosystem of applications andmanagement systems pose many new problems. The databases of the traditional grid and the variousinitiatives related to new technologies have given rise to many different management systems with several formats and different architectures. A heterogeneous data source integration system is necessary toupdate these systems for the new smart grid reality. Additionally, it is necessary to take advantage of theinformation smart grids provide. In this paper, the authors propose a heterogeneous data source integration based on IEC standards and metadata mining. Additionally, an automatic data mining framework isapplied to model the integrated information.Ministerio de Economía y Competitividad TEC2013-40767-

Understanding the breathing gas capacities (ratings) of escape respirators for mineworker use

The following information will help workers understand the meaning of breathing gas capacity of a jointly approved National Institute for Occupational Safety and Health (NIOSH) and Mine Safety and Health Administration (MSHA) closed-circuit escape respirator (CCER). Understanding the uses and limitations of the CCER is important in planning for an escape during a mine emergency.by R. Metzler, T. Rehak, J. Szalajda, R. Berry Ann.May 2013.Also available via the World Wide Web as an Acrobat .pdf file (710 KB, 4 p.)

Self-contained self-rescuer long term field evaluation: combined eighth and ninth phase results

"The National Institute for Occupational Safety and Health (NIOSH) National Personal Protective Technology Laboratory (NPPTL) and the Mine Safety and Health Administration (MSHA) conduct a Long Term Field Evaluation (LTFE) program to evaluate deployed self-contained self-rescuers (SCSRs). The objective of the program is to evaluate how well SCSRs endure the underground coal mining environment with regard to both physical damage and aging when they are deployed in accordance with Federal regulations (30 CFR 75.1714). This report presents findings of the combined eighth and ninth phases of the LTFE. For these phases, over four hundred SCSRs were evaluated. The units tested include the CSE SR-100, Draeger Oxy K-Plus, MSA Life-saver 60, and the OCENCO EBA 6.5. The OCENCO M-20 was evaluated only in Phase 9. Testing was performed between December 2000 and April 2004. Results of the evaluation indicate that all SCSRs experience some performance degradation due to the mining environment. Observed degradation varies from elevated levels of carbon dioxide, high breathing resistance, and reduced capacity. Mechanical degradation to the SCSR components included breathing hoses, chemical beds, outer cases and seals. The LTFE tests discussed in this report are different from tests performed for SCSR certification to the requirements of 42 Code of Federal Regulations, Part 84 (42 CFR, Part 84). LTFE tests reported here are conducted to an end point, oxygen depletion, to enable comparison of the duration of new and deployed SCSRs. The method for obtaining deployed SCSRs for this evaluation was not a random selection from the deployed population of SCSRs. Although the results of these tests are useful for observing performance of the tested SCSRs, they are not representative of all deployed SCSRs. A new evaluation protocol, with revised sampling strategies, test methods, and reporting procedures, is currently being designed to enhance the generalizability of the results. This program will be implemented following completion of Phase 10 of the current LTFE protocol. " - NIOSHTIC-2Title from title screen (viewed on July 9, 2008)."October 2006."Mode of access: Internet at the National Institute for Occupational Safety and Health web site. Address as of 7/9/08: http://www.cdc.gov/niosh/mining/pubs/pdfs/2007-103.pdf; current access available via PURL

Random Generation of Arbitrary Waveforms for Emulating Three-Phase Systems

This paper describes an apparatus for generating a signal representative of steady-state and transient disturbances in three-phase waveforms of an ac electrical system as described in IEEE Std 1159-09. It can be configured as a synthesizer of randomly distorted signals for different applications: for testing the effects of disturbed grid on equipment and to generate patterns of electrical disturbances for the training of artificial neural networks, which are used for measuring power quality tasks. For the first purpose, voltage and current amplifiers are added in the output stage, which allows the generation of disturbed signals at grid level.Comisión Interministerial de Ciencia y Tecnología DPI2006-15467-C02-01Comisión Interministerial de Ciencia y Tecnología DPI2006-15467-C02-0