ASTM D Test Method for Sampling Natural Gas Gives methods for sampling of natural gas, containing different gases as contaminants such as natural. Find the most up-to-date version of ASTM D at Engineering This method was issued as a joint ASTM-API standard in This standard has for sampling natural gas is described in Test Method D NOTE 3—The.

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Most of the methods described are already widely accepted for the analysis of petroleum fuels1. The heavier heating oils contain higher amounts of nitrogen, sulfur, and trace metals because processing of the crude oil concentrates these mate- rials in the heavier fractions. Mass spectrometry affords qualitative identification of major components. In addition, many standard methods, including some ASTM methods, leave certain options to the parties con- cerned – e.

ASTM D2983 Lubricating Oils Lubricants Low-Temperature Brookfield Viscometer

Nitrogen will be present only to the extent that it is present in the feed material. Combustion products ad- sorbed in a carbonate solution are acidified and titrated with mercuric nitrate. Volatile matter is determined from the weight loss after the sample is heated in an oven at “C achieved gradually for two hours. Isothermal-Jacket Bomb Calori- meter Method: Increments for the gross sample should be taken systematically.

A modification for determining the lower min- imum pour point of black oil, cylinder stock and non-dlsti- late fuel oil is given. The Bureau of Mines has recommended drying samples of crude shale oil, prior to subsequent r1145, with any equipment e. Applicable to sample of LPG such as propane, bu- tane, or mixtures. It is pos- sible that unanticipated problems will require some methods modifications.


The parameters are listed in that same order as in Table II-l. Coke may also be produced from other sources such as the delayed coking process which utilizes petroleum heavy residuals.

See Reference fl for other points. Heating oils The discussion also deals with waste lubricating oils which are sometimes combusted. In both methods, chloride is determined by titration, either colorimetrically or potentio- metrically.

Third, because the moisture content of RDSF may be highly variable – and high on an absolute scale as well – it is suggested that analytical results be reported on a “moisture-free” basis.

Technical Manual for the Analysis of Fuels

C02, Cj-Cg hydrocarbons uses partition column of sill- cone oil or other absor- bants. Laboratories which are very active in the area of gas analyses often develop and utilize procedures and equip- asstm based upon these modifications and improvements before such improve- ments have been incorporated into standards such as the ASTM methods.

End point may be determined either visually or electro- metrically. Quantities of the sample required, costs, and standard reference materials where available are given in Table III Additional atm on the methods of analysis, including alternate methods for most parameters is given in Section 3 of this chapter.


ASTM D 5. This is also a modified Kjeldahl method, but is only intended for use when nitrogen is present from 0. Gaseous Fuels Virtually all gaseous reference mixtures are prepared by blending pure com- ponents, both by weight and by volume, rather than analyzing a “real” sam- ple. Apparent Density NA The sample should be collected in a manner appropriate to the condi- tion of the coal, e. References for each chapter are given at the end of the text portion of that chapter. For petroleum crude and fuel oils: P Varies with the initial boil- ing point and end point of the material and with the rate of change of thermometer readings.

ASTM-D | Test Method for Sampling Natural Gas (Withdrawn ) | Document Center, Inc.

See Reference til for other points. The number given for repeatability is the acceptable difference for duplicate results by the same laboratory; that for reproducibility is the acceptable difference for duplicate results submitted by two or more laboratories. Gas chromatography is a very powerful technique for separation and measurement of complex mixtures. Table VI-2 provides a brief summary of pertinent methods and their appli- cability.

The results from two laboratories agreed, in dd1145 cases, within the reproduci- bility limits for the method.