ASTM F903 PDF

Summary of relevant information contained in. ASTM F Standard Test Method for Resistance of. Materials Used in Protective Clothing to Penetration by . Designation: F – 03 Standard Test Method for Resistance of Materials Used in Protective Clothing to Penetration by Liquids1 This standard. ASTM F Standard Test Method for Resistance of Materials Used in Protective Clothing to Penetration by Liquids.

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However, it is possible that differences in chemical and molecular properties for example, surface tension lead to different results. Procedure C uses a It is recommended that any special means used to seal specimens in the test cell be validated for providing sufficient integrity of the specimen in the test cell, not contribute to specimen damage, and not interfere with the observation of liquid penetration.

Summary of Test Method 4. If this occurs, record it as a failure and terminate the test.

However, it is also appropriate to establish sampling plans based on a specific acceptable quality limit using a larger number of specimens, depending on the application of the test method. For more sensitive analyses, use either Test Method F or F to determine permeation.

NOTE 2—Material is steel. 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.

What are ASTM F Safety Standards? |

A transparent cover see Fig. These procedures entail different hydrostatic pressures and durations of liquid exposure.

Use of a funnel is one way to make? Test specimens of protective clothing are exposed to a variety of chemical and molecular properties. 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.

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What are ASTM F903 Safety Standards?

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.

If the liquid passes through the specimen, the material fails the 9f03 for resistance to penetration of the liquid. This standard is subject to revision at any time by the responsible technical committee and must be reviewed every?

In this test method, all procedures involve liquid exposure that is continuous over the duration of the test. The resistance to visible penetration f90 the test liquid is determined with the liquid in continuous contact with the normally outside exterior surface of the test specimen.

The droplet must remain easily visible to ensure that a droplet that penetrates the material will be seen. Examples of retaining screens are 11 by 11 nylon screen, 14 by 14 polypropylene screen, astk 13 by 13 polyester screen.

If the temperature of the cell and liquid were different at the start of the test, report both. You can read about the individual protective features of each product by logging on to WorkingPerson. F — 03 FIG. F are the standard methods of testing used for chemically resistant workwear. Passing results indicate that no liquid penetration was observed over the duration of the t903 exposure.

A transparent cover is optional. Procedure D also has f930 for assessing the robustness of protective clothing materials and assemblies as part of quality systems. Work Item s – proposed revisions of this standard.

However, it is possible that differences in chemical and molecular properties for example, surface tension may lead to different results.

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Inadequate sealing of the specimen can lead to a false result observed liquid penetration that is due to the method of sealing rather than penetration through the specimen. Special means used to seal g903 in the test cell should be documented in the report.

Referenced Documents purchase separately The documents listed below are referenced within the c903 standard but are not provided as part of the standard. A Use of a retaining screen is optional. Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm.

To make sure you stay safe while around corrosive chemicals, check that the garment you are wearing has been properly tested and meets the regulations and safety standards associated with the chemicals you are working with or the standards that your employer sets. Originally approved in The resistance to visible penetration of the test liquid is determined with the liquid in continuous contact with the normally outside surface of the test specimen.

Areas such as hands, legs, eyes, face and torso should be completely protected. The specimen fails if a droplet of liquid appears or a characteristic asrm see 9. Random specimens shall be generated as described in Practice E Suggestions are provided for how to select an appropriate procedure for liquid contact. Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters.