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P2790/D4.0, Aug 2019 - IEEE Approved Draft Standard for Biometric Liveness Detection
2020 Edition, March 9, 2020 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

A biometric lifeless attack is one of the indispensable issues within biometric authentication. There are three major components in liveness detection systems: lifeless attack presentation, liveness detection, and lifeless attack instruments. The lifeless attack presentation is divided into...

ASTM A795/A795M-13(2020) - Standard Specification for Black and Hot-Dipped Zinc-Coated (Galvanized) Welded and Seamless Steel Pipe for Fire Protection Use
March 1, 2020 - ASTM International

1.1 This specification covers black and hot-dipped galvanized welded and seamless steel pipe in NPS 1/2 to NPS 10, inclusive [DN 15 to DN 250, inclusive] (Note 1), with wall thicknesses as given in Table 1 and Table 2. Pipe having other wall thicknesses may be furnished...

C57.13.5-2019 - IEEE Standard for Performance and Test Requirements for Instrument Transformers of a Nominal System Voltage of 115 kV and Above
2020 Edition, February 21, 2020 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

Single-phase instrument transformers of a nominal system voltage of 115 kV and above with capacitive insulation system for line-to-ground connection and for both indoor and outdoor application are discussed in this standard. This standard is intended for use as a...

ASTM G166-00(2020) - Standard Guide for Statistical Analysis of Service Life Data
February 15, 2020 - ASTM International

1.1 This guide presents briefly some generally accepted methods of statistical analyses which are useful in the interpretation of service life data. It is intended to produce a common terminology as well as developing a common methodology and quantitative expressions relating to service life...

ASTM D4647/D4647M-13(2020) - Standard Test Methods for Identification and Classification of Dispersive Clay Soils by the Pinhole Test
February 1, 2020 - ASTM International

1.1 This test method presents a direct, measurement of the dispersibility and consequent colloidal erodibility of clay soils by causing water to flow through a small hole punched in a specimen. The results of the tests are qualitative and provide general guidance regarding...

ASTM F2191/F2191M-13(2020)e1 - Standard Specification for Packing Material, Graphitic or Carbon Braided Yarn
February 1, 2020 - ASTM International

1.1 This specification covers staple or continuous filament carbon/graphite yarn valve stem compression packing, suitable for use as end-rings on packing systems for valves. Intended services include steam, hydrocarbons, water, and non-oxidizing chemicals. Where this specification is invoked...

ASTM D2494-13(2020) - Standard Test Method for Commercial Mass of a Shipment of Yarn or Manufactured Staple Fiber or Tow
February 1, 2020 - ASTM International

1.1 This test method provides a measurement of the commercial mass of a shipment of yarn or manufactured staple fiber or tow. This test method applies to (1) yarn of all fiber types except silk, glass, asbestos, and bast; (2) tops and slivers of all fiber types except wool, silk,...

ASTM D3108/D3108M-13(2020) - Standard Test Method for Coefficient of Friction, Yarn to Solid Material
February 1, 2020 - ASTM International

1.1 This test method covers the measurement of the kinetic frictional properties of a moving yarn in contact with a solid material. Note 1: For determining yarn-to-yarn friction, refer to Test Method D3412. 1.2 This test method specifies a relative speed of 100 m/min. The test method may be...

ASTM D3412/D3412M-13(2020) - Standard Test Method for Coefficient of Friction, Yarn to Yarn
February 1, 2020 - ASTM International

1.1 This test method covers the measurement of frictional properties for both continuous filament and spun-staple yarns under boundary friction conditions. 1.2 This test method has been used with yarns having linear densities ranging from 1.5 to 400 tex, but may be used with...

ASTM D624-00(2020) - Standard Test Method for Tear Strength of Conventional Vulcanized Rubber and Thermoplastic Elastomers
February 1, 2020 - ASTM International

5.1 Vulcanized rubber and thermoplastic elastomers (TPE) often fail in service due to the generation and propagation of a special type of rupture called a tear. This test method measures the resistance to tearing action. 5.2 Tear strength may be influenced to a large degree by...

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