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Calcined coke may be treated with different types of oil in order to limit the formation of a dust cloud during loading and transportation. The method specified in this International Standard permits the determination of the loss of mass in calcined coke after elimination of oil adhering to the particles, by extraction with dichloromethane (methylene chloride) in an extraction apparatus.

Shall be used in conjunction with detail specifications concerning each pump model. Includes functional requirements, quality assurance provisions, qualification tests, acceptance tests, storage and packaging. A schematic summary is provided in the annex for easy reference to the contents of this International Standard.

This International Standard specifies the recorded characteristic for magnetic Sound records on 35 mm motion-picture film excluding striped release prints when used at the nominal Speed of 24 frames (45,6 cm or 18 in) per second or 25 frames (47,5 cm or 18.7 in) per second. NOTE - This International Standard and relevant portions of Recommendation No. 265-2 of the CCIR have substantially the same…

Is intended to serve as a guide for the establishment of technical specifications for products of given type. Rovings are divided in two main groups: - rovings that are chopped during subsequent operations - rovings that are utilized without being chopped The following particulars are mentioned and the relevant International Standards are quoted: Designation, type of glass, filament diameter,…

The active TBC in a test portion is extracted by mixing with a solution containing m-nitrophpenol (as the internal standard) and evaporating the butadiene. The TBC and m-nitrophenol are separated by high-performance liquid chromatography and detected by UV: The peak areas or peak heights are measured and the TBC content is determined by using a calibration graph. The polymerization inhibitor TBC…

A small quantity of the oils is analyzed by gas chromatography under specified conditions on a packed column. The safrole and cis- and trans-isosafrole contents are determined by using the internal standard method. As stationary phase are used polydimethylsiloxane, or polyethylene glycol 20000. Operating temperatures: Oven: isotherm about 100 °C when using polydimethylsiloxane; isotherm about 125…

A small quantity of the oils is analyzed under specified conditions. The alpha- and beta-thujone contents are determined by using the internal standard or addition method. As stationary phase are used cyanopropyl methylphenyl methyl silicone, or trifluoropropylmethyl silicone, or polyethylene glycol 1500. Operating temperatures: Oven: isotherm about 100 °C when using cyanopropyl methylphenyl…

A small quantity of the oil is analyzed under specified conditions. The cis-beta-asarone contents is determined by using the internal standard or addition method. As stationary phase polyethylene glycol 20000 is used. Operating temperatures: Oven: isotherm about 190 °C. Injection system and detector: about 170 °C.

The method consists in analyzing a small quantity of essential oil on a column of small diameter but great length under specified conditions. The citral content is determined by using the internal standard method. Polyethylene glycol 20000 is used as stationary phase. Operating temperatures: Oven: linear temperature programming from 80 to 180 °C at a rate of 2 °C/min. Injection system: about 190…

A small quantity of the oil is analyzed by gas chromatography under specified conditions on a packed column. The alpha -terpineol content is determined by using the internal standard method. Operating temperatures: Oven: isotherm between 120 and 150 °C. Injection system: about 170 °C. Detector: about 170 °C.