testing reagent News
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ASTM D3986 - 11 standard test method for barium in brines, seawater, and brackish water by direct-current argon plasma atomic emission spectroscopy
All waters containing acid soluble barium compounds are known to be toxic. This test method is useful for the determination of barium in brines, seawater, and brackish waters. Consumption, inhalation, or absorption of 500 to 600 mg of barium is considered fatal to human beings. Lower levels may result in disorders of the heart, blood vessels, and nerves. The drinking water standards set the ...
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ASTM B456 - 11e1 standard specification for electrodeposited coatings of copper plus nickel plus chromium and nickel plus chromium
This specification establishes the requirements for several types and grades of electrodeposited copper plus nickel plus chromium and nickel plus chromium coatings on steel, copper, copper alloys, Type 300 and 400 series stainless steels, aluminum, aluminum alloys, and zinc alloys for application where both appearance and protection of the basis metal against corrosion ...
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ASTM D6130 - 11 Standard Test Method for Determination of Silicon and Other Elements in Engine Coolant by Inductively Coupled Plasma-Atomic Emission Spectroscopy
Some engine coolants are formulated with silicon containing additives. This test method provides a means of determining the concentration of dissolved or dispersed elements which give an indication of this additive content in the engine coolant. 1. Scope 1.1 This test method covers the determination of silicon in engine coolant by inductively coupled ...
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STEMart Announces Rapid Endotoxin Testing Services for Medical Devices
STEMart, a US-based provider of comprehensive services for all phases of medical device development, has announced the launch of its Rapid Endotoxin Testing Services to help medical device manufacturers quickly and accurately assess the endotoxin levels in their products. Bacterial endotoxins are lipopolysaccharides (LPS) bound to the bacterial cell wall and released when the bacteria rupture or ...
By STEMart
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ASTM D4691 - 11 standard practice for measuring elements in water by flame atomic absorption spectrophotometry
Elemental constituents in water and wastewater need to be identified to support effective water quality monitoring and control programs. Currently, one of the most widely used and practical means for measuring concentrations of elements is by atomic absorption spectrophotometry. The major advantage of atomic absorption over atomic emission is the almost total lack of spectral interferences. In ...
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ASTM E1915 - 11 Standard Test Methods for Analysis of Metal Bearing Ores and Related Materials for Carbon, Sulfur, and Acid-Base Characteristics
These test methods are primarily intended to test materials for compliance with compositional specifications and for monitoring. The determination of carbon and sulfur and acid neutralization potential in ores and related materials is necessary to classify ores for metallurgical processing and to classify waste materials from the mining and processing of ores such as leach ...
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ASTM D3306 - 11 Standard Specification for Glycol Base Engine Coolant for Automobile and Light-Duty Service
1. Scope 1.1 This specification covers the requirements for ethylene glycol or propylene glycol base engine coolants used in automobiles or other light duty service cooling systems. When concentrates are used at 40 to 70 % concentration by volume in water, or when prediluted glycol base engine coolants (50 volume % minimum) are ...
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ASTM D4762 - 11a standard guide for testing polymer matrix composite materials
This guide is intended to aid in the selection of standards for polymer matrix composite materials. It specifically summarizes the application of standards from ASTM Committee D30 on Composite Materials that apply to continuous-fiber reinforced polymer matrix composite materials. For reference and comparison, many commonly used or applicable ASTM standards from other ASTM ...
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