... Committee D02 on Petroleum Products and Lubricants has assumed the responsibility for revising Manual on Significance of Tests for Petroleum Products (ASTM Manual Series: MNL1) . Technology is undergoing accelerating change, and this revision attempts to capture the changes in ASTM test methods...

.... The software that is described in this paper has not been completed. However, it can provide a research team with an investigative tool that creates a collective memory, selection procedures, operation modules, and individual or collective work spaces. software database fatigue (materials) tests...

... Several tests and requirements have been used routinely in the past 30 years for durability and quality of stone for use as riprap and armor. Among the tests are absorption, unit weight, abrasion, sulfate soundness, and freezing-thawing. The tests all give index values reflecting durability only...

... criteria and tests. Selection of some limits and material properties may present variations and constraints on protective performance. Observations outline some efforts in technical literature, field trials and user experience to interpret and assess tests, designs, and standards for protective clothing...

... of regulation development. aquatic toxicology acute toxicity toxicity aquatic biology effluents waste water experimental design sampling environmental tests performance standards biological laboratories quality assurance quality control LC 50 standardization bioassay standard operating...

... Porosity tests generally make use of the relative corrosivities of the coating and the substrate to determine the integrity of the former. This paper is concerned with coatings, such as gold, that are cathodic to the substrate. Coatings of this type are usually applied to protect the substrate...

... A critical review of instrumental methods of testing phosphate coatings based on the literature and on experimental work was carried out taking into account their utility for research and for routine quality control. The possible methods found in the review account for the relatively small...

... years, improvements have been made in the constituents of graphite/epoxy composites. Fiber tensile strengths have increased and tougher resins have been formulated. Tension, impact, and compression tests were conducted on several of these advanced materials to evaluate their performance. Based...

... cements portland pozzolana cements portland slag cements quality raw materials specifications surveys tests variation H. C. Visvesvaraya^ and Ajoy K. Mullick} Quality of Cements in India Results of Three Decadal Surveys REFERENCE: Visvesvaraya, H. C. and Mullick, A. K., "Quality of Cements...

... square metre, but often the specification is qualitative. Four tests of cleanness are widely quoted; these are visual examination in white and in ultraviolet light, a wipe test, and a water break test. The threshold sensitivities of these four tests have been evaluated for six different hydrocarbon oils...

... conducted using the same test materials in laboratory and field tests. Communities that developed were diverse and averaged 1441 individuals, 30 species, and 6 phyla for laboratory tests and 933 individuals, 51 species, and 8 phyla for field tests. Toxicants were introduced via water, air, or sediment...

... of such constituents before their migration from the treatment zone can occur. A toxicity reduction (TR) test system is being proposed that will serve to determine whether and to what extent attenuation of WSF organic constituents, including both parent compounds and intermediate transformation products, will occur...

... with an associated variance. The LC 50 must be extrapolated from the test species to the species of interest, to life-cycle toxicity, to long-term toxicity in the field, to changes in population size due to direct toxic effects and, finally, to the combined direct and indirect toxic effects. Similarly, the emission...

... A computerized testing system was developed and utilized to determine J I - R curves and J Ic by the partial unloading compliance method according to the ASTM Test for J Ic , a Measure of Fracture Toughness (E 813) and the tentative test procedure for determining the plane strain J I...

... of this method results in obtaining fracture properties not previously measured directly. ductile fracture tests crack propagation crack-growth resistance curves crack-opening displacement J integral compact specimen Wayne R. Andrews^ Determining Crack Extension Using a Displacement Based Key...

... real physical crack growth and fictitious crack growth caused by deformation of the specimen, a procedure is described to derive both crack initiation and crack growth from the test records of a single specimen. This procedure is then applied to a series of three-point bend (SENB) specimens...

... The fatigue behavior of two different batches of an alumina fiber reinforced aluminum composite (FP/Al) was investigated. Both batches had a nominal 55% fiber volume fraction with fibers uniaxially oriented in the test direction. Tension-tension fatigue tests were conducted on flat, untabbed...

... Corrosion in potable water varies greatly depending upon the water composition. The most important factors are oxygen content, pH value, temporary hardness, chloride, sulfate, and conductivity. To be able to carry out tests of corrosion resistance, thorough knowledge of corrosion processes...

... Mild steel is the most common structural material and is used in a wide range of environments. However, there are few systematic data on the effects of operating parameters on corrosion behavior in immersed conditions. To obtain such data, a suitable test method is required in which parameters...

... “Jet-in-slit” was used for erosion-corrosion tests on 6/4 yellow brass in a 3% sodium chloride solution together with free jet and submerged jet (common nozzle diameter of 1.6 mm). The latter jets are typical testing methods for evaluating the resistance of alloys to erosion-corrosion. Each...