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astm method Applications

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    Determination of 4-carboxybenzaldehyde & p-toluic acid in purified terephthalic acid according to ASTM D7881 & ASTM D7882 test methods

    Introduction

    These test methods cover the determination of 4-carboxybenzaldehyde (4-CBA, 4-formylbenzoic acid) and p-toluic acid (p-TOL, 4-methylbenzoic acid) in purified terephthalic acid (PTA) by capillary electrophoresis (CE) with normal or reverse voltage mode and UV detection.

    By Lumex Instruments Group based in Mission, BRITISH COLUMBIA (CANADA).

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    Determination of inorganic anions in aqueous matrices according to EPA 6500 and ASTM D6508-10 test methods

    This test method is applicable for determination of the dissolved inorganics anions; fluoride, bromide, chloride, nitrite, nitrate, ortho-phosphate, and sulfate in aqueous matrices using capillary ion electrophoresis with indirect UV detection. The method can be applied to drinking water, wastewater and ground water. 

    By Lumex Instruments Group based in Mission, BRITISH COLUMBIA (CANADA).

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    EDXRF spectrometers for petroleum & petrochemical

    Oil and fuel analysis - compliance with ASTM standard methods and other regulations. Xenemetrix state-of-the-art ED-XRF analyzers offer solutions for the Petroleum & Petrochemical analysis that comply with ASTM standards and regulations. Our superior solutions cover the full production process, starting from research & development up to process and quality control.

    By Xenemetrix Ltd. based in Migdal Haemek, ISRAEL.

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    Determination of the mercury concentration in naphtha

    Introduction

    The mercury concentration in crude oil and petroleum products can vary in a wide range of less than 0.1 ppb to dozens ppm. Direct mercury determination in crude oil and petroleum products at the range above 5 ppb is covered by ASTM D7622-10(2015) "Standard test method for total mercury in crude oil using combustion and direct cold vapor atomic absorption method with Zeeman background correction". Mercury determination in naphtha and light petroleum products (condensate, gasoline and diesel fuel) at a level below 5 ppb is a vital problem for the oil refining and petrochemical industry. Complex organic matrix impedes conventional quantitative analysis for mercury.

    By Lumex Instruments Group based in Mission, BRITISH COLUMBIA (CANADA).

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    RAPID ANALYSIS OF TOTAL MERCURY IN WASTE WATERS AND PROCESS WATERS WITH ELEVATED MERCURY CONTENT USING DIRECT PYROLYSIS TECHNIQUE

    A conventional standard method of total mercury determination in water using atomic absorption spectrometry (AAS) involves preliminary sample digestion that takes from 30 minutes to 8 hours depending on the digestion conditions. The use of a mercury analyzer RA-915M/RA-915+ with Zeeman background correction in combination with PYRO-915+ pyrolysis attachment provides direct determination of mercury in process and waste waters contaminated with mercury without digestion or any other sample preparation stages. The measuring method is based on thermal atomization of mercury from a sample using a PYRO-915+ attachment and its consequent determination by flameless AAS with Zeeman background correction using the RA-915M mercury analyzer. The total time needed for determination of mercury is not longer than 2 minutes. RA-915+/915M is compliant with US EPA 7473 and ASTM D7622 methods.

    By Lumex Instruments Group based in Mission, BRITISH COLUMBIA (CANADA).

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    EDXRF spectrometers for ultra low sulfur

    Compliance with the ASTM method at low concentrations sulfur. Sulfur is a major element of importance because it forms sulfuric acid in the atmosphere when burned and has harmful impact on the human health and on the environment. In the mid-2000`s, the Environmental Protection Agency (EPA) began a program to greatly reduce the amount of Sulfur in petroleum products. The current allowable sulfur limit in vehicle fuel is 15 ppm (parts per million). To reduce the pollution coming from vessels the international maritime Organization (IMO) established new limits on emission of sulfur oxides. In Emission Controlled Areas the sulfur limit will be 0.1 % starting 2015. The continued strategy by EPA and IMO to reduce the amount of sulfur in petroleum products put a great demand on sulfur monitoring in fuel and oil products.

    By Xenemetrix Ltd. based in Migdal Haemek, ISRAEL.

  • Precision moisture analysis instruments for rapid solids analysis for paints and coatings

    Safely analyze solvent- and non-solvent-based coatings. Your customers rely on your paints and coatings to keep their assets safe from their environments. You can rely on Computrac® to provide accurate, reliable readings in minutes on solids and ash content for your products. Computrac Moisture, Solids and Ash analyzers can be used in ASTM method D7323-06, and can be correlated to other test methods, including D2369, and D5095. Further, Computrac® is the ONLY rapid loss-on-drying analyzer with Nitrogen Purge capabilities to minimize the risk of product flashing.

    By Arizona Instrument LLC based in Chandler, ARIZONA (USA).

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