analyzer test Articles
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Comparative Evaluation of Test Methods for Reciprocating Engines; EPA Reference Methods vs. Portable Analyzer
Abstract This is a comparative evaluation of errors in testing engines using reference methods and portable analyzers. New Mexico Environment Department (NMED) Air Quality Bureau has published a guidance document, Standard Operating Procedure (SOP), Use of Portable Analyzers in Performance Tests. EPA provides guidance on reference method testing in 40 CFR 60, Appendix A. This document is based ...
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How to Run the 1.0 µL Microcap Test on a VPXL
We’re taking a break from our Moisture Matters video series this week to bring you a “How To” video demonstrating how to perform the daily 1.0 µL microcap test on a Computrac® Vapor Pro® XL. The same, or similar, method can be used to perform the equivalent test on previous models of the Computrac® Vapor Pro® XL moisture analyzer. This test may also be ...
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Request from the Laboratory in an Oil Refinery to Testing and Analyzing Equipment Manufacturers
Oil refineries are always required, as social duties, to strictly ensure "safety" and appropriately manage "environment, health and quality" and "stable supply" and, as economic duties, to seek and manage "productivity." The mission of the laboratory of the oil refinery is to support good management, and it is essential for the laboratory to select and manage appropriate testing and analyzing ...
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Steps for a BM respirometry test with the special reactor for MBBR
1. Load de biomass carriers in the reactor cage 2. Place the filled cage into de reactor vessel loaded with surrounding mixed‐liquor of the actual process 3. Install reactor assembly and connectors in the analyzer console 4. Set the test configuration 5. Run the test 6. Check measurements throughout the test 7. See ...
By SURCIS, S.L.
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Chemometrics-enhanced simultaneous spectrophotometric determination of aluminum and bismuth with hematoxylin in vegetables and water using multivariate calibration
A simple, novel and sensitive spectrophotometric method was described for simultaneous determination of aluminum and bismuth mixtures. All factors affecting the sensitivity were optimized, and the linear dynamic range for determination of aluminum and bismuth found. The simultaneous determination of aluminum and bismuth and use of spectrophotometric methods is a difficult problem due to the ...
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Settlement of Compacted Clay in a Cyclic Direct Simple Shear Device
The results of 36 cyclic strain-controlled direct simple shear tests on a low-plasticity compacted clay are presented and analyzed. The tests were conducted in a Marshall Silver-type device, which utilizes the Norwegian Geotechnical Institute (NGI) type of short cylinder specimen confined in a wire-reinforced rubber membrane. Three degrees of compaction achieved by the modified compaction test ...
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Determination of effective cation exchange capacity and exchange acidity by a one-step BaCl2 method
Routine laboratory procedures measure effective cation exchange capacity (ECEC) and exchangeable acidity (EA) using separate extractants. This study assessed the suitability of a one-step BaCl2 extraction for the analysis of both ECEC and EA on organic and mineral soils by comparing results to those of a multi-step BaCl2 extraction already in use by Europe's International Cooperative Programme ...
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Geo-Environmental Assessment of a Micaceous Soil for Its Potential Use as an Engineered Clay Barrier
The ability of the fine fraction of a natural micaceous soil in the Stanleyville area near Perth, Ontario, to retard an acidic waste leachate is examined. Batch and leaching column tests were used to investigate the retention capcity of the natural soil. To investigate the effect of ion competition on adsorption/desorption capacity of the soil, single and multi-components of Pb2+ and Zn2+ were ...
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Adsorption and catalytic oxidation of organic pollutants using Fe-zeolite
In this work, a natural zeolite, modified and loaded with iron (NZ-A-Fe) as a heterogeneous catalyst, was characterized for its suitability as a permeable reactive barrier (PRB) material for treatment of aromatic hydrocarbons in groundwater. Adsorption and oxidation processes were analyzed. Batch adsorption tests for benzene, toluene and xylene (BTX) aqueous concentrated solutions were ...
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Box Compression Testing: Unveiling Strength and Endurance in Packaging Solutions
Box compression testing plays a crucial role in evaluating the strength and endurance of packaging materials, ensuring the integrity and safety of products during transit and storage. By subjecting boxes to controlled forces, this essential testing method provides valuable insights into their resistance to compression, enabling manufacturers and shippers to select the most reliable packaging for ...
By TestXpert
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Rescheduling of unrelated parallel machines under machine breakdowns
In this paper, new repair and rescheduling algorithms are developed for the unrelated parallel machine environment. The introduced rules and algorithms are used to handle different rates of breakdowns and delays and are evaluated based on several performance measures to ensure the optimisation of both the schedule quality and stability. Schedule quality is assessed based on the schedule makespan ...
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Cyanobacterial Toxins Detected by Thamnotoxkit (a Double Blind Experiment)
Abstract: The Thamnotoxkit FTM was evaluated for detecting cyanobacterial toxins compared with the rat hepatocyte test and mouse test. This test kit is a 24-hour biosassay using larvae of the freshwater anostracan crustaceanThamnocephalus platyurus hatched from cysts. Thirteen freeze-dried cyanobacterial samples from freshwaters of Hungary, Germany and Brazil, and strains from the culture ...
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Detection of changes in flood data in Victoria, Australia from 1975 to 2011
Changes in observed streamflow records for 131 catchments from the state of Victoria in southeast Australia are investigated for the 1975–2011 study period. Seven flood indices are considered which are derived from annual maximum, peak-over-threshold (POT) and monthly maximum flood series. Trend analyses are undertaken using Mann–Kendall (MK) and seasonal MK tests along with the bootstrap ...
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Major considerations in the corporate development of R&D strategies within Australian technology-based firms
The work reported in this paper empirically examines major considerations in corporate R&D decision making in Australia. A set of hypotheses is tested through analysing the data obtained from one hundred and twelve technology-based companies with R&D activities. Australian R&D managers generally perceive that consistency with customer requirements, a firm's competitive strategy and the ...
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Comparative experimental study on fouling mechanisms in nano-porous membrane: cheese whey ultrafiltration as a case study
Determination of fouling mechanisms and accurate quantitative prediction of nano-porous membrane behavior are of great interest in membrane processes. This work has focused on a comprehensive comparison of two classical and new fouling models. Different operational conditions were tested to analyze the level of agreement of these models with experimental observation. Whey solutions of 8, 0.8 ...
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Participative development and training for business processes in industry: review of 88 simulation games
A tool for participative business process development is the so-called social simulation game method. The social simulation game method is like a "role-play" but is tailored to an organisation's own business processes. The main purpose is to develop business processes, i.e., to analyse present processes, to test alternative process modes and to train employees. The authors have carried ...
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Effective DNA extraction method for molecular diagnostics on wood-decay fungi
1. INTRODUCTION Strategically eliminating damage caused by fungus requires precise identification of the fungal species present (using either conventional or molecular diagnostic techniques). The first step in performing molecular diagnostics on wood-decay fungi is to obtain analyzable fungal DNA. Five commercially available kits and one CTAB method were tested and analyzed in order to ...
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Urban Heat Island and Air Pollution—An Emerging Role for Hospital Respiratory Admissions in an Urban Area
The aim of the study discussed here was to determine the associations among the urban heat island (UHI), air quality, and hospital respiratory admissions in the warm center of an urban area. The authors collected and analyzed the data regarding air quality parameters, meteorological parameters, and the daily hospital respiratory admissions in the Taichung metropolis in the autumns of 2003 and ...
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What is the effect of elevation on oxygen readings?
Recently we received a call from a customer who was in quite a panic. They had taken their Model 901 O2 analyzer from Minnesota to Denver, and turned it on to see quite a difference in the ambient oxygen readings when powering the analyzer on. While our calibration certificate states the elevation that our O2 analyzers are calibrated, certainly many customers don’t read the certificate ...
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Towards intelligent decision support systems for emergency managers: the IDA approach
The paper presents ENEA's next step towards the development of Intelligent Decision Support Systems (IDSS) for large-scale industrial and territorial emergencies. The prototype IDA (Intelligent Decision Advisor) for emergency management in an oil port is analysed as a test case. The work was performed under the national R&D MICA project and specifically ENEA's long-term strategic MINDES Program ...
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