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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Methods for separation and identification of classes of compounds and individual components have been developed by EPA3 and by the U.
In the case of certain cokes, a correction for. At the end of a 30 minute heating per- iod, the crucible is cooled and weighed. Should be ade- quate for RDSF. It is pos- sible that unanticipated problems will require some methods modifications. Contents of the Manual 3 4.
ASTM D – 80 Test Method for Sampling Natural Gas (Withdrawn )
If the method normally used with the instrument e1145 applicable for the fuel in question, then it may be desirable to use that instrumental method since it may result in time and cost savings.
Individual constituents are separated by gas chromato- graphy on a column suitable for the required separation, and are measured by ashm of a thermal conductivity detec- tor. A modification is given for light distllate oils; the method, as given above, is used on a 10Z distillation residue of the sample. Oxygen compounds are quinones, phenols, and acids. Laboratories which are very active in the area of gas analyses often develop and utilize procedures and equip- ment based upon these modifications and improvements before such improve- ments have been incorporated into standards such as the ASTM methods.
A modification for sparking samples is prescribed. These ast, the sample requirements for a single analysis of coal or coke and may be significantly different from the amount of RDSF needed. The sulflde is treated with acidified solu- tion of an aromatic amlne astn ferric chloride catalyst to form methylene blue due which is asym by colorimetry.
Use of temperature pro- gramming Method similar to that for natural gas D except that different chromotographic columns used to afford separa- tion of large amounts of car- bon monoxide, nitrogen, and unsaturated hydrocarbons often found in synthesis gases.
Applicable for determina- tion of free water and water of hydration in liq- uid organic compounds plus other types of compounds over a wide concentration range. The analyses covered are those that are of prime concern to the engineer, or project director, involved in a pollution related ast project.
ASTM D Petroleum fuels may be subjected to long periods of storage, and additives e. Coke is ground to smaller particle size. Acidity due to HC1 is deducted. Greater amounts of RDSF may be required for samples with little homogeneity.
The density is then read from the hydro- meter scale where it breaks the liquid surface. ASTM D See Notes 1 and 2 Determined indirectly by sub- tracting from the percent- ages of hydrogen, carbon, sul- fur, nitrogen, moisture, and ash. An analysis for sulfur has been included, even though the concentration is expected to be quite low. 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 qstm or more laboratories.
Coke may also be produced from other sources such as the delayed coking process which utilizes petroleum heavy residuals. Laboratory 3 was “off” in some data, did not carry out many of the required solid fuel analyses, and did not perform duplicate analyses. The kinematic vis- cosity is the product of the measured flow tine and the calibration constant of the viscometer. At present, methyl fuel is not being made commercially. Fifth Edition,Douglas M. Sulfur is present as mercaptans, sulfides, and thiophenes.
Sulfide and mercaptana are measured by iodometric titra- tion.
ASTM D2983 Lubricating Oils Lubricants Low-Temperature Brookfield Viscometer
As with RDSF, the chief weakness of the meth- ods that are not intended for peat analyses may be inadequate sample size. Should be applicable for less homogeneous samples of RDSF where larger sam- ples must be used. F1145 ASTM D Oxygen is determined indirectly by subtracting from the per- centages of hydrogen, carbon, sulfur, nitrogen, and ash.