ASTM D Standard Test Method for Particulate Contamination in Middle Distillate Fuels by Laboratory Filtration. standard by ASTM. Method reference ASTM D is used to determine the mass of particulate ASTM D determines the mass of particulates present in a fuel sample which . This standard is issued under the fixed designation D ; the number immediately This test method is under the jurisdiction of ASTM Committee D02 on.

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This standard has either been superceded and replaced by a new version astn discontinued. A number in parentheses indicates the year of last reapproval.

A superscript epsilon e indicates an editorial change since the last revision or reapproval. This test method is suitable for all No.

See Test Methods D and D for means of determining particulate contamination in Specication D aviation turbine fuels and other similar aviation fuels. See Guide D for a more detailed discussion ashm static electricity formation and discharge. Summary of Test Method 4. Each 3 4 1. Higher levels of particulate contaminant can be measured, but are subject to uncertain precision. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Current edition approved Jan. D — 98 membrane set consists of a tared nylon test membrane and a tared nylon control membrane. When the level of particulate contamination is low, a single set will usually suffice; when the contamination is high or of a asm that induces slow ltration rates, two or more sets may be required to complete ltration in a reasonable time. Signicance and Use 5. Test Method D and its predecessor Aatm Method D were developed for aviation fuels and used 1 gal or 5 L of fuel sample.

Using 1 gal of a middle distillate fuel, which can contain qstm particulate levels, often required excessive time to complete the ltration. This test method used about a quarter of the volume used in f6217 aviation fuel methods.

This test method provides a means of assessing the mass of particulates present in a fuel sample. Maximum particulate levels are specied in several military fuel specications. NOTE 2—The electrical bonding apparatus described in Test Method D or other suitable means of electrical grounding which ensure safe operation of the ltration apparatus and f6217 can be used.

Filtration System for ASTM D6217, IP 415

If the ltrate is to be subsequently tested aetm stability it is advisable not to use copper as copper ions catalyze gum formation during the stability test.

A fuel and solvent resistance rubber hose through which the grounding wire passes shall connect the sidearm asrm the receiving ask to the tube passing through the rubber stopper in the top of the safety atsm. Air ionizers shall be replaced within one year of manufacture.

NOTE 3—When using a solid-pan balance, the air ionizer may be omitted provided that, when weighing a membrane lter, it is placed on the pan so that no part protrudes over the edge of the pan.

A standard laboratory wash bottle can also be used provided the ushing uid is pre-ltered through a 0. D — 98 FIG. NOTE 5—Small watch glasses, approximately 5 to 7 cm in diameter, have also been found suitable to support the membrane lters. Reagents and Materials 7. Unless otherwise indicated, it is intended that all reagents ast, conform to the specications of the Committee on Analytical Reagents of the American Chemical Society, where such specications are available.

NOTE 7—Membrane lters with a grid imprinted on their surface, may be used as control membrane lters for identication. Preparation of Apparatus and Sample Containers 8.


D — 98 containers, their caps and petri dishes as described in 8. Container caps should be handled only externally with clean laboratory crucible tongs during this and ashm washings. Similarly protect the funnel opening c6217 the assembled ltration apparatus astn a clean protective cover until ready for use. Sampling NOTE 8—Caution—It is important to note that the entire contents of the sample container are ltered during the conduct of this test method. This includes not only all of the fuel but also all rinsings of the interior of the container with ushing uid.

Because of this, take care to protect the sample from any external contamination. Protect the fuel sample from prolonged exposure to light by wrapping the container in aluminum foil or storing it d627 the dark to reduce the possibility of particulate formation by light-promoted reactions.

Do not transfer the asym sample from its original sample container into an intermediate storage container. If the original sample container or damaged or leaking, then a new sample must be obtained. Preparation of Membrane Filters For fuels containing little particulate materials, only one set of lters is required. If the fuel highly contaminated, more than one set of lters may be required see Section The two membrane lters used for each individual test shall be identied by marking the petri dishes used to hold and transport the lters.

Clean all glassware used in preparation of membrane lters as described in 8.

To facilitate handling, the membrane lters should rest on clean glass support rods, or watch glasses, in petri dish.

Keep the petri dish cover ajar, but such that the membrane lters are still protected from contamination from the atmosphere. Allow 30 min for the membrane lters to come to equilibrium with room air temperature and humidity. Weigh it, record the initial mass to the nearest 0. Place the weighed test membrane lter on top of the control membrane lter. Install the funnel and secure with locking ring or spring clip. Astk not remove the plastic lm from the funnel opening until ready to start ltration.

Filtration Kit | ASTM D | IP

Shake the container vigorously for about 12min. To minimize operator 4 9. Glass containers are preferred to facilitate a visual inspection of the contents and the container before and after lling.

Glass containers also allow for visual inspection of the container, after the sample is emptied, to conrm complete rinsing of the container. Epoxy lined sample cans, polytetrauoroethylene PTFE bottles, and high density linear polyethylene bottles have also been found suitable as sample containers but are less desirable since visual inspection of the interior of the container is more difficult. When it is not practical to clean the sample containers in this manner, the containers shall be rinsed three times with the fuel to be sampled.

When it is not practical to clean the sampling lines, rinse them thoroughly with the fuel to be sampled. Samples should preferentially be obtained dynamically from a sampling loop in a distribution line, or from the ushing line of a eld sampling kit.

Ensure that the line to be sampled is ushed with fuel before taking the sample. Ensure that the sample has not passed through intermediate containers prior to placement in the prepared container. NOTE 9—Caution—Samples obtained from static storage may give results which are not representative of the bulk contents of the tank because of particulate matter settling.

Where possible, the contents of the tank should be circulated or agitated before sampling, or the sampling performed shortly after a tank has been lled. D — 98 exposure to fumes, the ltering procedure should be performed in a fume hood. The entire contents of the sample container shall be ltered through the membrane lters to ensure a correct measure of the particulate contamination in the sample.


NOTE 10—Some fuels may lter reasonably rapidly during transfer of the total contents of the sample container through a single set of lter membranes. However, some fuels, due to the quantity or nature of particulates, or both, may plug the membrane lter during ltration and require use of multiple successive ltrations. To facilitate the latter, it is advisable to use smaller cleaned graduated transfer cylinders of mL capacity. Keep the fuel sample ltrate separate from the solvent washings ltrate.

This allows the fuel to be used for additional analyses. If all the fuel has been ltered, thoroughly rinse the sample container and the graduated cylinder with one or more portions of ltered ushing uid and pour the rinses into the funnel and proceed to If all the fuel has not been ltered, then proceed to With the vacuum applied, carefully separate the funnel from the lter base.

Wash the periphery of the membrane lter by directing a gentle stream of ltered ushing uid from the edge to the center, exercising care not to wash any of the particulate from the surface of the membrane lter. Maintain vacuum after the nal washing for 10 to 15 s to remove excess ltered ushing uid from the membrane lter.

Dry and reweigh the membrane lters as described in Record the nal control membrane lter mass and the nal test membrane lter mass to the nearest 0. Calculation and Report NOTE 11—Subscripts 1 to x indicate the number of the ltration. Precision and Bias The cooperative test involved 13 laboratories and nine test fuels. Both grade 1 and grade 2 diesel fuels were used in the testing. D — 98 robin participants using both water aspirated and mechanical vacuum systems with vacuums ranging from 1 to kPa.

The information on the precision of this test method was developed with fuels ranging in particulate contamination from approximately 0. The precision data were obtained by statistical examination of interlaboratory test results using fuels samples of approximately 1 L volume. Results obtained when analyzing samples with volumes signicantly different than 1 L may have different precision values. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility.

This standard is subject to revision at any time by the responsible technical committee and must be reviewed every ve years and if not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters.

Your comments will receive careful consideration at a meeting 6d217 the responsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you should make your views known to the ASTM Committee on Standards, at the address shown below.

Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm.