Search
Advanced search
Filter by category
Filter by committee
Search results
-
Traffic paint plays an important role in maintaining the safety of roads. Subcommittee D01.44 on Traffic Coatings, part of ASTM International Committee D01 on Paint and Related Coatings, Materials and Applications, is currently working on two proposed new standards covering the sampling of waterborne traffic paint and glass bead gradation measurement., WATERBORNE TRAFFIC PAINT, Ensuring that traffic paint taken from the field is tested properly in laboratories is a concern of paint suppliers as well as private testing laboratories, Department of Transportation labs, DOT striping crews and striping contractors. A proposed new ASTM standard, ASTM WK22312 , Practice for Drum and Tote Sampling of Waterborne Traffic Paint, addresses laboratory sampling issues. According to…, GRADATION OF GLASS BEADS, Glass beads added to traffic paint during manufacturing are necessary to ensure paint retroreflectivity, especially at night. A proposed new standard, ASTM WK23758 , Test Method for Measuring Gradation of Glass Beads Using a Flowing Stream Digital Image Analyzer, will be useful in the production and quality control of glass beads. “Digital camera technology combined with high speed computers has…
-
ASTM International Committee F17 on Plastic Piping Systems is currently developing an efficient means to standardize fabricated polyvinyl chloride pressure fittings that are used in a variety of piping applications. The proposed new standard, WK23931 , Specification for Fabricated PVC Pressure Fittings, is under the jurisdiction of Subcommittee F17.10 on Fittings. Some of the applications that…
-
More effective quality testing of the synthetic, hollow filaments that are often used in the manufacture of lower cost paintbrushes is the purpose of a new standard approved by ASTM International Committee D01 on Paint and Related Coatings, Materials and Applications. The new standard, ASTM D7233 , Test Method for Testing Fracture of Level Paintbrush Filaments, was developed by Subcommittee D01.…
-
The wettability of a particular solid coating, substrate or pigment on a surface is a key to its effectiveness, as wetting is important to adhesion as well as to the prevention of surface defects such as craters, dewetting and crawling. A new ASTM International standard uses contact angle measurements to determine the wettability of coatings. The new standard, D7490 , Test Method for Measurement…
-
By necessity, paint used for roadway applications needs to dry quickly. Some multi-component traffic paints cure in less than 10 minutes, some much faster. Because of this speed of curing, these traffic paints and other types of fast-cure (less than 10 minutes) multi-component paints cannot be tested for volatile content using procedures outlined in the ASTM International standard typically used…
-
Thermoplastic corrugated stormwater chambers are similar to other types of plastic piping systems in that they are subjected to significant live loads from surface traffic as well as dead loads from earth cover. However, differences in construction — specifically, the fact that chambers are open-bottomed arches — necessitate an understanding of how corrugated stormwater chambers behave…
-
A proposed new standard that will allow for the joining of copper and plastic piping materials is currently being developed by ASTM International Committee F17 on Plastic Piping Systems. The proposed standard, WK21656 , Specification for Structural Adhesive for Bonding Similar and Dissimilar Piping Materials, is under the jurisdiction of Subcommittee F17.20 on Joining. “ WK21656 is the result of…
-
A proposed new standard under the jurisdiction of ASTM International Committee F17 on Plastic Piping Systems will be useful to the gas gathering and distribution industries. Subcommittee F17.11 on Composite is developing the proposed standard, WK21276 , Specification for Polyethylene Pipe with a Co-Extruded Polyamide Inner and/or Outer Barrier Layer for Oil and Gas Applications. According to…
-
Installers of plumbing systems using PEX and PE-RT polyethylene pipe will be the primary users of a new ASTM International standard approved by Committee F17 on Plastic Piping Systems. The new standard, ASTM F2735 , Specification for Plastic Insert Fittings for SDR9 Cross-Linked Polyethylene (PEX) and Polyethylene of Raised Temperature (PE-RT) Tubing, is under the jurisdiction of Subcommittee F17…
-
A proposed new ASTM International standard, WK19571 , Practice for Requirements for New Pipe and Fitting Materials for Gas Distribution Systems, will give the natural gas industry an important tool and defined process in continuing research and development efforts that will lead to the streamlined introduction of innovative products for the gas distribution industry. ASTM WK19571 is under the…