This SAE Standard encompasses connectors between two cables or between a cable and an electrical component and focuses on the connectors external to the electrical component. This document provides environmental test requirements and acceptance criteria for the application of connectors for direct current electrical systems of 50 V or less in the majority of heavy-duty applications typically used in off-highway machinery. Severe applications can require higher test levels, or field-testing on the intended application.

CTTC C2, Electrical Components and Systems

RDE Methodology Development for Motorcycle Emissions Assessment

2024-32-00734/18/2025

The transfer of conditions and regulations for RDE testing from passenger cars to motorcycles is a non-trivial undertaking. Motorcycles exhibit significant differences in construction and usage compared to cars, necessitating a distinct set of requirements for equipment and methodology. Currently available PEMS are hindered by their relatively large size and weight due to the embedded measurement technology and external power supply. The weight of, at least 50kg, poses a substantial additional load, leading to a deviation and, on average, higher load collective of the engine during RDE measurement rides. Beyond these structural parameters, the actual propulsion system and subsequent exhaust system introduce another challenge when employing PEMS on motorcycles. An unfavorable combination of the ratio of engine displacement to the volume of the exhaust system and long or unequal ignition intervals leads to pulsations, which has a considerable impact on the differential pressure-based

Schurl, Sebastian, Keller, Stefan, Lankau, Mathias, Hafenmayer, Christian, Schmidt, Stephan, Kirchberger, Roland

Title

AIRS12242024 (Current)12/24/2024

A-20A Crew Station Lighting

Tight

AIR12122024A (Current)12/12/2024

New Scoop

A-6 Aerospace Actuation, Control and Fluid Power Systems

test

ARPTEST3008A (Current)12/12/2024

A-6 Aerospace Actuation, Control and Fluid Power Systems

AIR12092024 (Current)12/9/2024

A-6 Aerospace Actuation, Control and Fluid Power Systems

GPF : An effective technology to minimize 2Wh particulate emission

2024-26-01401/16/2024

India is the world's largest two-wheeler (2Wh) market. With the proportion of its middle class rapidly rising, 2Wh sales and the resulting emissions, are expected to grow exponentially. The decision to leap-frog from BSIV to BSVI emission norms shows India's commitment to clean up its atmosphere. As of now, the regulation mandates Gaseous Pollutant (CO, HC, NOx) emission limits for all 2Whs. However, only 2Whs powered by Direct Injection (DI) engines have a particulate limit (PM & PN). Also, most of the 2Whs manufactured in India are powered by gasoline engines using the Port Fuel Injection (PFI) technology, and hence by definition particulate emission limits do not apply. Particulates when inhaled - especially of the ultrafine sizes capable of entering the blood stream - pose a serious health risk. Therefore, it became imperative to investigate the particulate emission levels of the 2Whs. We conducted a study selecting a motorcycle each from two different vehicle categories - Class 1

Bhimavarapu, Aditya, Singh, Sunil Kumar, Kataria, Rohit, Rose, Dominik, Boger, Thorsten

Simulation of Pass-by Fan Noise Emissions and Advancing Test Regulations for Heavy-Duty Electric Vehicles

2025-01-00865/5/2023

The rapid adoption of electric vehicles (EVs) necessitates updates to the automotive testing standards, particularly for noise emission. This paper examines the vehicle-level noise emission testing of a Nikola Class 8 hydrogen fuel cell electric semi-truck and the component-level noise emission testing needed to create a predictive simulation model using Wave6 software. The physical, component-level noise emission testing focused on individual cooling fans in a semi-anechoic chamber to assess their isolated noise contributions. With this data, an initial model was developed using spatial gradient statistical energy analysis, which successfully predicted pass-by noise levels based on varying fan locations and speeds. Real-world pass-by testing confirmed the model's accuracy across different cooling fan speeds. By leveraging advanced simulation techniques, engineers aim to enhance the accuracy and reliability of pass-by noise predictions through cost-effective studies of architectural

Passador, Stephen, Woo, Sangbeom, Liu, Ting-Wei, De La Vega Alonso, Gerardo, Kim, James

Allison's now open for hydrogen testing

22TOFHP10_0510/1/2022

With the atomic number 1, hydrogen is the lightest element in the Periodic Table, but it's rapidly becoming a heavyweight for the mobility future. Development of hydrogen fuel cell vehicle (HFCV) and hydrogen-fueled combustion engines for commercial-vehicle use is driving demand for specialized testing and validation facilities. Allison Transmission is in the vanguard of this movement, recently launching a comprehensive hydrogen test capability at its 60,000-ft2 (5,575-m2) Vehicle Electrification + Environmental Test Center in Indianapolis. Prior to its official debut, SAE Media was provided an exclusive look at the new facility - which also includes compressed natural gas (CNG) testing - courtesy of David Proctor, the test center's general manager, and Tim Szilveszter, Allison's sales account manager.

Brooke, Lindsay

US EPA NVFEL Repeatable-Vehicle Program – Emission Lab Testing System Performance Quality Monitoring

2022-01-06893/29/2022

According to US FCR the vehicle emission testing system must be monitored and checked periodically, and NVFEL TATD has developed a quality control monitoring program named “Repeatable-Vehicle Program”, the current vehicle selected is a proper sized and featured sedan, so called RepCar. The vehicle emission lab cell test used a chassis dyno to simulate some road driving conditions, a CVS system to collect exhaust sample and analyzed by a group of chemical benches. The testing condition is satisfied the FCR requirement and controlled during the testing procedure. A specific driving cycle including two phases was designed to evaluate vehicle power system at different speed load performance and measurement instruments accuracy under different concentration range. The phase1 is modified FTP505, phase2 is the most aggressive part of US06, and at the end of phase2 driving trace had a 30-second constant 75 mph cruising followed by a coast down. The RepCar equipped a data logger recording few

Tang, Xiaoguo

Study of vehicular CO2 variations in MIDC

2021-26-01969/22/2021

With introduction of CAFÉ norms in India from Apr’17, the manufacturer of all M1 Category vehicles (not exceeding 3,500kg GVW) has to ascertain that they comply with Annual Corporate Average CO2 (CAFÉ) Target as defined in AIS-137 regulation which is becoming stricter from 2022 onwards. Hence CO2 emissions are becoming one of the major controlling parameters during vehicle development. The assessment of CAFÉ compliance involves multiple steps. Firstly, test agency provides Type Approval and Conformity of Production emission test reports to the Designated Agency. Accordingly, every manufacturer also submits Fuel consumption report/Passbook to the Designated Agency on annual basis. After verification of all data, the Designated Agency issues a status of compliance to the Manufacturer. Such detailed assessment protocol possess a huge challenge for any manufacturer in maintaining the consistency/accuracy of CO2 produced by manufactured vehicles within the Type Approved Limit. Therefore

Badri, Naveen Kumar Reddy, Sharma, Alok, Bhullar, Dilraj Singh

Chemical profiling of exhaust particulate matter from Indian in-service vehicles

2021-26-01929/22/2021

Particulate matter is one of the major pollutant responsible for deteriorating air quality, particularly in urban centers. Information on contributing sources with the share from different sources is a first and one of the important steps in controlling pollution. Diverse sources of particulate matter, anthropogenic as well as natural, like industries, transport, domestic burning, construction, wind-blown dust, road dust assesses the magnitude of contribution from these sources a complex issue. Receptor modeling is a scientific method which is utilized for assessment of the contribution of various sources based on chemical characteristics of particulate matter sources and ambient air particulate matter. Representative data of fractions of various chemical species in the particulate matter from the different sources i.e. source fingerprint is an essential input for the receptor modeling approach. A comprehensive national database on the source profiles of particulate matter collected

Bawase, Moqtik, Sathe, Yogesh, Mulla, Suhail, Thipse, Sukrut S

Facing 5G New Radio (NR) Test Challenges

TBMG-398699/1/2021

It has been nearly five years since the International Telecommunication Union (ITU) released ITU-R M.2083-0, with a roadmap to release IMT-2020 to address the anticipated future of 5G performance that would greatly eclipse that of IMT-Advanced and then-planned 4G technology.

Radiated emissions testing gathers bandwidth

21AUTP08_078/1/2021

In a non-descript business park in Auburn Hills, Michigan, Bureau Veritas (BV) is conducting tests to help prevent electronic havoc. With today's vehicles chock full of wired and wireless devices - and tomorrow's more automated machines destined to expand the complement - ensuring this burgeoning technology isn't radiating disruptive frequencies will be crucial to expanding functions and features. For the coming electric/autonomous age, radiated frequencies will become the new emissions challenge. Often summarized as electro-magnetic compatibility (EMC) testing, the BV facility (which sits in sight of the re-christened Stellantis North American HQ) provides a host of testing, inspection and certification services designed to simplify and speed vehicle development. The Motown BV crew does this by helping to ensure electronic components don't radiate spurious electromagnetic interference known as radiated and conducted emissions, and that they remain functioning even when subjected to

Seredynski, Paul

Designing Rugged SWaP-Optimized MOSA Solutions for UUVs

21AERP05_035/1/2021

As the U.S. Navy increases its investment in its fleet of unmanned undersea vehicles (UUV), suppliers of rugged commercial-off-the-shelf (COTS) subsystems, providing solutions for mission computers, network switches and routers, and data storage are meeting the needs of these unique platforms. The Navy classifies UUV systems into four categories, based on their size and how they are launched. Small UUVs range in diameter from 3″ to 10″ and can be man portable or submarine launched. Examples of small UUVs include the Swordfish and Sandfish. Medium UUVs have a diameter of 10″ to 21″ and are surface or submarine launched. Examples of medium UUVs include the Kingfish and the Knifefish. The Knifefish UUV, which is dedicated to mine hunting, is a great example of a UUV designed for a specific purpose. Large displacement UUVs (LDUUV) range in size from 21″ to 84″ in diameter and are also launched on the surface or from a submarine.

Exhaust Emissions from an SUV with a Spark-Ignition Engine Tested Using EU and US Legislative Driving Cycles and EU RDE Procedures

2021-01-06164/6/2021

Despite an overall trend towards harmonization in vehicle regulations, regional differences persist in the area of exhaust emissions and fuel economy. The test procedure employed can exert a significant impact on the results obtained. In this paper, the EU and US type approval procedures for light duty vehicles are briefly compared and results obtained from several types of test procedure are presented. Specifically, emissions tests were performed on a single SUV which met US Tier III emissions limits. The vehicle featured a conventional, naturally aspirated spark ignition engine with indirect fuel injection and an aftertreatment system consisting of three-way catalysts with no dedicated particulate filtration device. The vehicle’s engine displacement, total mass and power-to-mass ratio were relatively representative of the upper end of the US market, but represented an outlying vehicle in terms of the characteristics of the EU fleet. The following test procedures were used: the

Bielaczyc, Piotr, Woodburn, Joseph

Creation of OBD Limit Motorcycle Catalysts Using Different Ageing Methods

2021-01-05984/6/2021

This paper outlines a novel method employed to accurately age catalysts to the required OBD limit for European motorcycles legalisation Euro 5 using a combination of modelling and testing. The method applies several strategies, including thermal ageing and catalyst poisoning, to reduce catalyst activity in order to mirror real-world catalyst ageing. Predictions were made using a combined global and micro kinetic model to specify catalyst activity to a matching light-off condition. The model simulated a motorcycle operating on a WMTC (World Motorcycle Test Cycle) and adjusted catalyst activity (Precious metal and Oxygen Storage Capacity) until tailpipe emissions matched the limits for Euro 5 OBD II. The same model ran a simulated light-off test to predict the light-off point for the catalyst. The catalyst was then aged to match this light-off performance using a RAT ageing cycle with additional poisoning to reach the target deactivation. Performance was checked at interim points to

Mc Grane, Liam, Douglas, Roy, Irwin, Kurtis, Pedlow, Andrew, Stewart, Jonathan, Woods, Andrew, Muehlstaedt, Fabian

Questions about Real Driving Emissions in Brazil

SAE-PP-002272/2/2021

The motor vehicles are the main source of atmospheric pollution, especially carbon monoxide, hydrocarbons and nitrogen oxides (NOx). To reduce these emissions for environmentally acceptable levels, Europe and the United States have developed control programs, where are set emissions limits for new vehicles, which are gradually reduced over time and the compliance must be done through standardized tests in laboratories. However, Europe is facing a problem: NOx level in the cities is not being reduced in the same proportion of the homologation limits, due to two factors: the poor representativeness of the test procedures in comparison of the “real world” and the use of engine management software that produces low pollutants just in laboratory tests. Several studies about real world emissions have pointed to vehicles, approved in the laboratory, emitting in the streets about 7 up to 40 times more NOx than the homologation limit. To fix this problem, since September/2017 Europe will add to

Anthony, Lindsay

ALLISON BUILDS A TESTING POWERHOUSE

21AUTP02_042/1/2021

Allison Transmission's new Vehicle Environmental Test center in Indianapolis is open for business for external and in-house customers alike. The VET has everything vehicle development teams need to improve testing efficiencies. Reducing product development time is among the industry's top priorities, particularly as vehicle makers transition into an electrified future. Waiting on the environment - climate, weather, terrain and the logistics of on-road testing - is a costly impediment when the program clock is ticking. For commercial-vehicle OEMs, the need for a comprehensive testing facility that offers complete seasonal independence and utmost process efficiency has been growing. The solution now is in service at Allison Transmission's new Vehicle Environment Test center in Indianapolis. The 60,000-ft2 VET, as it's known, is part of Allison's $400 million investment in engineering resources and new products this decade, including a new 95,000-ft2 Innovation Center also based on the

Brooke, Lindsay

A TESTING POWERHOUSE

21TOFHP02_022/1/2021

Allison Transmission's new Vehicle Environmental Test center in Indianapolis is open for business for external and in-house customers alike. Reducing product development time is among the industry's top priorities, particularly as vehicle makers transition into an electrified future. Waiting on the environment - climate, weather, terrain and the logistics of on-road testing - is a costly impediment when the program clock is ticking. For commercial-vehicle OEMs, the need for a comprehensive testing facility that offers complete seasonal independence and utmost process efficiency has been growing. The solution now is in service at Allison Transmission's new Vehicle Environment Test center in Indianapolis. The 60,000-ft2 VET, as it's known, is part of Allison's $400 million investment in engineering resources and new products this decade, including a new 95,000-ft2 Innovation Center also based on the Indy headquarters campus. The VET is unique among U.S. Midwestern vehicle test facilities

Brooke, Lindsay

Wearable, Stretchable Gas Sensor

TBMG-385072/1/2021

A team has developed and tested a stretchable, wearable gas sensor for environmental sensing. It combines a newly developed laser-induced graphene foam material with a unique form of molybdenum disulfide and reduced-graphene oxide nanocomposites. The researchers were interested in seeing how different morphologies, or shapes, of the gas-sensitive nanocomposites affect the sensitivity of the material to detecting nitrogen dioxide molecules at very low concentration. To change the morphology, they packed a container with very finely ground salt crystals.

Accelerated Environmental Testing for Bonded Automotive Assemblies

J2100_202101 (Current)

1/7/2021

This SAE Recommended Practice defines conditions to which bonded assemblies can be exposed to simulate environmental aging. These recommendations are generally based on existing Original Equipment Manufacturer requirements at this time. (Environmental specifications used for this proposal were from General Motors, Ford, and Chrysler.) The substrate type, dimension, and number are described by the standard for materials being tested and should include control specimens which receive no environmental aging.

Materials, Processes and Parts Council

LEAD-FREE SOLDER VALIDATION TEST PLAN

USCAR40-2 (Current)

11/19/2020

This guideline is applicable to existing lead solder production products that will change to lead-free solder processes to meet the ELV Directive 2000/53/EC Annex II, exemption 8B requirements. This guideline is applicable to similar products used by multiple OEM's that have the same manufacturing processes / equipment. The intent is to streamline the supplier’s environmental testing via common qualification to reduce timing, quantities, and costs.

USCAR

Enclosure-in-Chamber Setup to Achieve Near-Zero Background Concentrations for Brake Emissions Testing

2020-01-163410/5/2020

Measuring brake emission continues to be a challenging non-standardized task. Extensive research is ongoing and as seen in the work in progress presented at SAE Brake Colloquium and PMP meetings. However, open items include how to achieve lower background concentration and how to design the brake enclosure. A low background concentration is essential as brake events are short and some emissions are in the range of reported background levels. Hence these emissions are difficult to distinguish from the background level. Even more critical, a high background concentration can result in a wrong particle number emissions value, either overestimated, background counted as emissions, or underestimated, background level subtracted, and low emission events no longer detected and counted. Reducing the background level to less than 100 #/cm3 appeared to be quite challenging. Applying experience in validating automotive air filters and in industrial HVAC filters, an enclosure-in-chamber setup was

Lehmann, Martin J., Beck, Andreas, Kohn, Kevin, Pfannkuch, Steffen, Kilian, Alexander, Keller, Florian, Wörz, Tobias, Zessinger, Marco, Klein, Gunnar-Marcel

Industrial-Grade Open Source

TBMG-3782910/1/2020

Much of today's consumer-facing applications and behind-the-scenes computing infrastructure are built using open source software. Also, in recent years, a growing “maker” community has created do-it-yourself computing and automation projects based on open source software and commercial microcontrollers like the Raspberry Pi and Arduino. These efforts are widely accepted due to the flexibility, convenience, and low cost of open source.

Exhaust Emissions from a City Bus Fuelled by Oxygenated Diesel Fuel

2020-01-20959/15/2020

The benefits associated with the use of oxygen-containing diesel fuels in passenger cars are quite well described in the literature. This work describes the results of an 18-meter EEV city bus fueled with diesel fuel with the addition of 10% v/v of triethylene glycol dimethyl ether. This compound was chosen because it was effective in reducing exhaust emissions from light duty diesel vehicles. Emission tests (CO, HC, NOx and PM) of the city bus were performed over SORT (Standardized On-Road Tests) cycles using portable exhaust gas analyzers - PEMS. Significant differences in the emission of exhaust components were observed in individual SORT cycles. The level of road emissions reduced as the traffic smoothness increased, i.e. from the SORT 1 to SORT 3 cycle. The largest reduction in bus emissions associated with the use of the oxygenated additive (triethylene glycol dimethyl ether) applies to carbon monoxide and ranges from 50% for the SORT 3 cycle up to 90% for the SORT 1. For the

Kozak, Miloslaw, Lijewski, Piotr, Fuc, Pawel

Study of Effects of Deposit Formation on GDi Injector and Engine Performance

2020-01-20999/15/2020

Gasoline Direct Injection (GDI) vehicles now make up the majority of European new car sales and a significant share of the existing car parc. Despite delivering measurable engine efficiency benefits, GDI fuel systems are not without issues. Fuel injectors are susceptible to the formation of deposits in and around the injector nozzles holes. It is widely reported that these deposits can affect engine performance and that different fuels can alleviate the buildup of those deposits. This project aims to understand the underlying mechanisms of how deposit formation ultimately leads to a reduction in vehicle performance. Ten GDI fuel injectors, with differing levels of coking were taken from engine testing and consumer vehicles and compared using a range of imaging and engine tests. At the time of writing, a new GDI engine test is being developed by the Co-ordinating European Council (CEC) to be used by the fuel and fuel additive industry. One such test was used to precondition six of the

Pilbeam, Jonathan James, Thomson, Alex Robert, Sahu, Amrit B., Liu, Haoye, Xu, Hongming

The Impact of the Driver’s Driving Style on the EXHAUST Emissions of a Passenger Car during a Real Road Cycle

2020-01-22149/15/2020

The research was carried out using the Horiba OBS ONE GS12 portable emission measurement system (PEMS), installed on a Skoda Octavia III 1.4 TSI vehicle. The scope of research included performing a validation test in emission laboratory on a chassis dynamometer in order to check if the operation of the measuring system is correct and performing three real driving emission tests on public roads in Bielsko-Biala and the surrounding area. Each of tests was performed with a different driving dynamics to determine the effect of the driver's driving style on the vehicle's emissions in real road cycle. Each RDE test consisted of three parts (urban, rural and motorway). During the tests the program Horiba DMC was used. However, the obtained results were calculated using the DIAdem program. After the tests, exhaust gas emissions as a function of time and exhaust emissions dependent on driving dynamics were presented and analysed graphically. These diagrams illustrate the impact of driving

Satlawa, Mateusz, Pajdowski, Piotr, Pietras, Dariusz

Robust and Affordable IoT Solution for In-service Conformity Testing

2020-01-21879/15/2020

Since 2019 in-service conformity testing for vehicles as described in EU legislation 2018/1832 is active and obliges numerous emission control tests on WLTP and RDE cycles. For the on-road portion of these tests typically Portable Emissions Measurement System (PEMS) are used. While these systems provide all necessary regulated emissions measurements, their use and handling are difficult due to their weight, cumbersome installation, and their limited accessibility due to a high price point. In order to make the real-driving measurement accessible for a maximum number of institutions, IFPEN is developing a compact measurement system with an advanced cloud modeling of the vehicle for more cost-effective and user friendly RDE and ISC testing. This real-time analyzer, named “REAL-e” is developed as an IoT system, who’s measured data is transferred in real-time to a secured cloud service for enhanced data processing and data enrichment. REAL-e is based on a combination of off-the-shelf and

Schiffmann, Philipp, Kermani, Joseph, Degeilh, Philippe, Frobert, Arnaud, Agouzoul, Youssef

Accelerated Ageing Method of Three Way Catalyst Run on Test Bed with Emission Performance and Oxygen Storage Capacity Evaluation

2020-01-21899/15/2020

The aim of this paper was to describe a method of accelerated three way catalytic converter (TWC) ageing performed on the engine test bed for European On Board Diagnostics (EOBD) monitoring purposes and screening of different catalysts solutions. To accelerate the catalyst ageing process, the exhaust gas temperature was elevated to a range 1000 - 1200°C, which is typical for an ageing cycle performed using ovens. Catalyst emissions performance was checked at new condition (after degreening) and subsequently at predefined ageing intervals, based on the oxygen storage capacity (OSC) evaluation. The emission tests were performed in the laboratory on the chassis dynamometer using legislative cycles. The accelerated ageing method was found to be of use for verifying the EOBD functionality under vehicle operation with a degraded catalyst substrate. Secondly, the described method allows execution of a time-efficient ageing cycle on a test bed in order to validate catalyst chemistry and

Sala, Rafal, Bielaczyc, Piotr

An Analysis of Emissions at Low Ambient Temperature from Diesel Passenger Cars Using the WLTP Test Procedure

2020-01-21869/15/2020

The aim of this paper is to analyse the results of regulated and unregulated emissions and carbon dioxide (CO2) emissions of passenger cars equipped with compression-ignition engines that meet the emission Euro 6d standards. Both test vehicles featured selective catalytic reduction (SCR) systems for control of oxides of nitrogen (NOx) and one vehicle also featured a passive NOx absorber (PNA). Research was performed using the current European Union exhaust emission test methods for passenger cars (Worldwide harmonized Light vehicles Test Procedures (WLTP)). Emission testing was performed on a chassis dynamometer, within a climatic chamber, at two different ambient temperatures: 23°C (i.e. Type I test) and -7°C (known as a Type VI test - currently not required for this engine type according to EU legislative requirements). Gaseous and particulate emissions limited in the Euro 6 standard were measured using the applicable legislative procedures and the additional components CO2, NH3

Adamiak, Borys, Puchalka, Bartosz, Woodburn, Joseph, Szczotka, Andrzej, Bielaczyc, Piotr

The Impact of Driving Resistances on the Emission of Exhaust Pollutants from Vehicles with the Spark Ignition Engine Fuelled with Petrol and LPG

2020-01-22069/15/2020

One of the important factors affecting exhaust emissions of car engines is driving resistance. A certain problem during the tests bench according to the driving cycle is the road load curve function, which is determined based on various methods. In the paper, the results of studies of the impact of the driving resistances on the exhaust gas emissions of CO (carbon monoxide), CO2 (carbon dioxide), THC (total hydrocarbons), NOx (nitrogen oxides) emitted by passenger cars with a SI engine, fuelled with petrol and LPG were presented. Tests were carried out in chassis dynamometer for road load coefficient determined by the road method and for type approval alternative method. The research was realized for NEDC (New European Driving Cycle) cold start tests for EURO 3 and EURO 6 standards vehicles. Results show that CO2, CO and THC emissions for tests realized by dyno settings based on road load are higher than for tests with dyno settings by the alternative method of the load. Therefore, it

Jaworski, Artur, Mądziel, Maksymilian, Kuszewski, Hubert, Lejda, Kazimierz, Jaremcio, Mirosław, Balawender, Krzysztof, Jakubowski, Mirosław, Wos, Pawel, Lew, Krzysztof

High-Reliability Capacitors: Critical Components for Medical Device Implantables

TBMG-373658/1/2020

As technology advances in the medical device space, electronics design engineers are constantly adapting to meet industry requirements for increased functionality, reduced component size, and absolute reliability. For medical implantables, technological innovations are driven by the ability for electronic components manufacturers to superminiaturize electronic circuits and create advancements in the materials and designs available.

Procedure for the Continuous Sampling and Measurement of Non-Volatile Particle Emissions from Aircraft Turbine Engines

AIR6241A (Current)

7/28/2020

This Aerospace Information Report (AIR) is a historical technical record describing procedures, required continuous sampling conditions, and instrumentation for the measurement of non-volatile particle number and mass concentrations from the exhaust of aircraft gas turbine engines. Procedures are included to calculate sampling loss performance. This AIR is not intended for in-flight testing, nor does it apply to engine operating in the afterburning mode. This Aerospace Information Report is a historical technical record of the initial document detailing the measurement of non-volatile particle emissions at the exit plane of aircraft gas turbine engines. This methodology was adopted by ICAO into Annex 16 Vol II and updated into Aerospace Recommended Practice ARP6320. Future updates of this document may include explanations of the reasoning and assumptions used to develop this measurement methodology.

E-31P Particulate Matter Committee

Procedure for the Continuous Sampling and Measurement of Non-Volatile Particle Emissions from Aircraft Turbine Engines

AIR6241A-TEST-REC (Historical)7/28/2020

E-31P Particulate Matter Committee

Selecting Pressure Sensors for Autoclaves

TBMG-370126/1/2020

Pressure sensors are a key component in the monitoring and validation of steam temperature and other conditions in autoclaves commonly used to sterilize medical and dental equipment. Nominal conditions are around 2.1bar, 134°C (maximum pressure is about 3.8 bar/55 psi) steam from pure distilled water. Some of the requirements for pressure sensors are typical of most of today’s equipment calling for smaller form factor and cost-effective solutions. Autoclaves have additional application-specific needs for pressure sensors in that they must deliver high accuracy, be able to support elevated operating temperatures, feature high pressure capabilities, and offer harsh media compatibility.

Air Data Computer – Minimum Performance Standard

AS8002B (Current)

4/28/2020

This SAE Aerospace Standard (AS) covers air data computer equipment (hereinafter designated the computer) which when connected to sources of aircraft electrical power, static pressure, total pressure, outside air temperature, and others specified by the manufacturer (singly or in combination) provides some or all of the following computed air data output signals (in analog and/or digital form) which may supply primary and/or standby flight instruments: Pressure Altitude Pressure Altitude, Baro-Corrected Vertical Speed Calibrated Airspeed Mach Number Maximum Allowable Airspeed Over-speed Warning Total Air Temperature

A-4 Air Data Subcommittee