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Since the late 1970s, precast box sections have become an important component in the construction of culverts, storm drains and sewers, but there has not been a comprehensive standard for the installation of such sections. A new ASTM International standard fills this gap. ASTM C1675, Practice for Installation of Precast Reinforced Concrete Monolithic Box Sections for Culverts, Storm Drains and…, Technical Contact:, Roman Selig, Hamilton Kent LLC, Birmingham, Ala., Phone: 205-910-0690; roman.selig@hamiltonkent.com, ASTM Staff Contact:, Diane Trinsey, Phone: 610-832-9661; dtrinsey@astm.org, ASTM PR Contact:, Barbara Schindler, Phone: 610-832-9603; bschindl@astm.org R elease #9243
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Load and resistance factor design methodology developed by the American Association of State Highway and Transportation Officials plays a key role in a proposed ASTM standard on the design of culverts and storm drains. ASTM WK38166 , Specification for Manufacture of Precast Reinforced Concrete Three-Sided Structures for Culverts and Storm Drains Designed According to AASHTO LRFD, is being…, Technical Contact:, Balaram K. Singh, P.E., Michigan Department of Transportation, Lansing, Mich., Phone: 517-335-2174; singhb@michigan.gov, ASTM Staff Contact:, Diane Trinsey, Phone: 610-832-9661; dtrinsey@astm.org, ASTM PR Contact, : Barbara Schindler, Phone: 610-832-9603; bschindl@astm.org R elease #9311
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While the use of digital evidence is fairly common in contemporary criminal investigation, there are still relatively few degree programs in computer forensics. A new standard developed by ASTM International Committee E30 on Forensic Sciences provides a road map for post-secondary institutions to develop degree programs in computer forensics. The new standard, ASTM E2678 , Guide for Education and…
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ASTM International Committee C13 on Concrete Pipe has approved a new standard that covers flexible joints for concrete box sections using rubber gaskets for leak resistant joints. Subcommittee C13.08 on Joints for Precast Concrete Structures developed ASTM C1677 , Specification for Joints for Concrete Box, Using Rubber Gaskets. “This specification will provide a uniform minimum level of…
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Flow characteristics of fine metal powders are important in filling dies for pressing of powder metallurgy compacts, which are later sintered and sometimes machined into finished parts. The flow rate, as measured by a new ASTM standard, determines the flow necessary for a precise quantity of powder to be introduced into the die. The new standard, B964 , Test Methods for Flow Rate of Metal Powders…
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Two recently approved ASTM International standards provide user-friendly tests for properties of sintered metallurgy products. The new standards, developed by Subcommittee B09.04 on Bearings, are ASTM B962 , Test Methods for Density of Compacted or Sintered Power Metallurgy (PM) Products Using Archimedes’ Principle, and ASTM B963 , Test Methods for Oil Content, Oil-Impregnation Efficiency and…
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Two proposed new ASTM standards will serve as guides for laboratories around the world in establishing a minimum basis of practice for validation and sampling of seized drugs. The proposed standards, WK12734 , Guide for Sampling Seized Drugs for Qualitative and Quantitative Analysis, and WK12735 , Practice for Validation of Seized Drug Analytical Methods, are under the jurisdiction of…
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A proposed new standard being developed by ASTM International Committee B09 on Metal Powders and Metal Powder Products offers a solution to the challenge of handling and characterizing very fine powders. Subcommittee B09.02 on Base Metal Powders is developing the proposed standard, WK13023 , Test Method for Determination of Tap Density of Metallic Powders by a Constant Volume Measuring Method. …
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Conventionally processed powder metallurgy materials often exhibit open microporosity at the surface. While it is a natural part of the process, this microporosity can affect the measurement of surface finishes. To cover this and other issues that arise from measuring the surface finish of powder metallurgy, ASTM International Committee B09 on Metal Powders and Metal Powder Products has developed…