loading
ASTM D8114-21a - Standard Test Method for Measurement of Effects of Automotive Engine Oils on Fuel Economy of Passenger Cars and Light-Duty Trucks in Sequence VIE Spark Ignition
July 1, 2021 - ASTM International

1.1 This test method covers an engine test procedure for the measurement of the effects of automotive engine oils on the fuel economy of passenger cars and light-duty trucks with gross vehicle weight 3856 kg or less. The tests are conducted using a specified spark-ignition engine with a...

ASTM G155-21 - Standard Practice for Operating Xenon Arc Lamp Apparatus for Exposure of Materials
July 1, 2021 - ASTM International

1.1 This practice is limited to the basic principles and procedures for operating a xenon arc lamp and water apparatus; on its own, it does not deliver a specific result. 1.2 It is intended to be used in conjunction with a practice or method that defines specific exposure conditions for an...

ASTM E3275-21 - Standard Guide for Visualization and Identification of Nanomaterials in Biological and Nonbiological Matrices Using Darkfield Microscopy/Hyperspectral Imaging (DFM/HSI) Analysis
June 1, 2021 - ASTM International

5.1 The information and recommendations in this guide are relevant for imaging and identifying ENMs in cells and other biological (for example, fixed tissues, whole plants) and nonbiological (for example, drug formulations, filter media, soil, and wastewater) matrices after...

ASTM D5466-21 - Standard Test Method for Determination of Volatile Organic Compounds in Atmospheres (Canister Sampling, Mass Spectrometry Analysis Methodology)
August 15, 2021 - ASTM International

1.1 This test method describes a procedure for sampling and analysis of selected volatile organic compounds (VOCs) in ambient, indoor, and workplace atmospheres. The test method is based on the collection of whole air samples in stainless steel canisters with specially treated (passivated) interior...

ASTM G152-13(2021) - Standard Practice for Operating Open Flame Carbon Arc Light Apparatus for Exposure of Nonmetallic Materials
June 1, 2021 - ASTM International

1.1 This practice covers the basic principles and operating procedures for using open flame carbon-arc light and water apparatus intended to reproduce the weathering effects that occur when materials are exposed to sunlight (either direct or through window glass) and moisture as rain or dew in...

ARP4168B - Night Vision Goggle (NVG) Compatible Light Sources
May 13, 2021 - SAE International

This ARP covers three common light sources, incandescent, electroluminescent and light emitting diode that, when NVG filtered, can be used to illuminate NVG compatible aerospace crew stations. It is recognized that many other different light sources can also be used for this purpose. Also...

IETF RFC 8955 - Dissemination of Flow Specification Rules
December 1, 2020 - IETF

Abstract This document defines a Border Gateway Protocol Network Layer Reachability Information (BGP NLRI) encoding format that can be used to distribute (intra-domain and inter-domain) traffic Flow Specifications for IPv4 unicast and IPv4 BGP/MPLS VPN services. This allows the routing...

Information Spread in a Social Media Age Modeling and Control
January 1, 2021 - CRC

The rise of social networks and social media has led to a massive shift in the ways information is dispersed. Platforms like Twitter and Facebook allow people to more easily connect as a community, but they can also be avenues for misinformation, fake news, and polarization. The need to...

ASTM D7898-14(2020) - Standard Practice for Lubrication and Hydraulic Filter Debris Analysis (FDA) for Condition Monitoring of Machinery
November 1, 2020 - ASTM International

1.1 This practice is intended to cover the extraction, analysis, and information management pertaining to visible wear debris collected from oil system filters or debris retention screens. Further, it is intended that this practice be a practical reference for those involved in...

ASTM F1166-21 - Standard Practice for Human Engineering Design for Marine Systems, Equipment, and Facilities
June 15, 2021 - ASTM International

4.1 The objective of this practice is to provide ergonomic design criteria for maritime vessels and structures to ensure that maritime systems and equipment are designed in compliance with requirements for human performance, human workload, health and safety, survivability, and habitability....

ASTM E840-95(2021)e1 - Standard Practice for Using Flame Photometric Detectors in Gas Chromatography
April 1, 2021 - ASTM International

1.1 This practice is intended as a guide for the use of a flame photometric detector (FPD) as the detection component of a gas chromatographic system. 1.2 This practice is directly applicable to an FPD that employs a hydrogen-air flame burner, an optical filter for selective spectral...

ASTM D8226-21ae1 - Standard Test Method for Measurement of Effects of Automotive Engine Oils on Fuel Economy of Passenger Cars and Light-Duty Trucks in Sequence VIF Spark Ignition Engine
April 1, 2021 - ASTM International

1.1 This test method covers an engine test procedure for the measurement of the effects of automotive engine oils on the fuel economy of passenger cars and light-duty trucks with gross vehicle weight 3856?kg or less. The tests are conducted using a specified spark-ignition engine with a...

ASTM D8226-21a - Standard Test Method for Measurement of Effects of Automotive Engine Oils on Fuel Economy of Passenger Cars and Light-Duty Trucks in Sequence VIF Spark Ignition Engine
April 1, 2021 - ASTM International

1.1 This test method covers an engine test procedure for the measurement of the effects of automotive engine oils on the fuel economy of passenger cars and light-duty trucks with gross vehicle weight 3856?kg or less. The tests are conducted using a specified spark-ignition engine with a...

ASTM F820-21 - Standard Test Method for Measuring Air Performance Characteristics of Central Vacuum Cleaning Systems
February 1, 2021 - ASTM International

4.1 The test results allow the comparison of the maximum air power available when no dirt has been introduced into the vacuum cleaning system, that is, a completely clean filter or an empty, clean dirt container.

ASTM E1926-08(2021) - Standard Practice for Computing International Roughness Index of Roads from Longitudinal Profile Measurements
February 1, 2021 - ASTM International

5.1 This practice provides a means for obtaining a quantitative estimate of a pavement property defined as roughness using longitudinal profile measuring equipment. 5.1.1 The IRI is portable in that it can be obtained from longitudinal profiles obtained with a variety of instruments. 5.1.2 The IRI...

ASTM E685-93(2021) - Standard Practice for Testing Fixed-Wavelength Photometric Detectors Used in Liquid Chromatography
April 1, 2021 - ASTM International

1.1 This practice is intended to serve as a guide for the testing of the performance of a photometric detector (PD) used as the detection component of a liquid-chromatographic (LC) system operating at one or more fixed wavelengths in the range 210 nm to 800 nm. Measurements are made at 254...

Fault Tolerant Attitude Estimation for Small Satellites
December 23, 2020 - CRC

Small satellites use commercial off-the-shelf sensors and actuators for attitude determination and control (ADC) to reduce the cost. These sensors and actuators are usually not as robust as the available, more expensive, space-proven equipment. As a result, the ADC system of small satellites...

Cognitive Science Integrative Synchronization Mechanisms in Cognitive Neuroarchitectures of Modern Connectionism
January 1, 2021 - CRC

The Mind and Brain are usually considered as one and the same nonlinear, complex dynamical system, in which information processing can be described with vector and tensor transformations and with attractors in multidimensional state spaces. Thus, an internal neurocognitive...

ASTM D8114-21 - Standard Test Method for Measurement of Effects of Automotive Engine Oils on Fuel Economy of Passenger Cars and Light-Duty Trucks in Sequence VIE Spark Ignition
January 1, 2021 - ASTM International

1.1 This test method covers an engine test procedure for the measurement of the effects of automotive engine oils on the fuel economy of passenger cars and light-duty trucks with gross vehicle weight 3856 kg or less. The tests are conducted using a specified spark-ignition engine with a...

IEEE C62.41.3 - IEEE Guide for Interactions between Power System Disturbances and Surge‐Protective Devices
September 24, 2020 - IEEE

This guide applies to surge-protective devices (SPDs) intended for connection to 50 Hz to 60 Hz ac power circuits rated 1000 V RMS or less. This guide describes the effects on SPDs of power system disturbances occurring in these low-voltage ac power circuits. The disturbances are not limited...

Advertisement