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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If the material was taken from garments, report under subheadings for each material, composite, type of seam, or other constructions tested, and its position on the garment. However, it is possible that differences in chemical and molecular properties for example, surface tension lead to different results.
NOTE 2—Material is transparent shatterproof-resistant plastic sheet. Current edition approved January 10, Since engineering controls may not eliminate all possible exposures, attention is often placed on reducing the potential for direct skin contact through the use of protective clothing that resists permeation, penetration, and degradation.
However, it is important that the selected retaining screen does not interfere with the observation of liquid penetration or affect the sealing of the specimen in the test cell.
Resistance to permeation and degradation should be determined by other test methods. Suggestions are provided for how to select an appropriate procedure for liquid contact.
If asym occurs, record it as adtm failure and terminate the test. 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.
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.
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Work Item s – proposed revisions of this standard. A transparent cover see Fig. Finished items and specimens are particularly important areas for testing as they consist of discontinuous and seamed regions of protective clothing. A Use of a retaining screen is optional.
Clean any external parts of the test cell touched by the liquid. This is done to determine their resistance to visible penetration, which occurs with continuous chemical contact to the outer portion of the clothing. A transparent cover is optional.
What are ASTM F903 Safety Standards?
Precision and Bias The specimen fails if a droplet r903 liquid appears or a characteristic discoloration see 9. With the test cell vertically oriented, allowing the air to vent, carefully,?
For more sensitive analysis use Test Method F to determine permeation. Test specimens of protective clothing are exposed to a variety of chemical and molecular properties.
Passing results indicate that no liquid penetration was observed over the duration of the test exposure. Flush the test cell with an appropriate wash liquid to remove or render harmless any traces of the test chemical. Use of a funnel is one way to make? Random specimens shall be generated as described in Practice E If the temperature of the cell and liquid were different at the start of the test, report both.
Use Test Method F for this purpose. 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. 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.
In this test method, all procedures involve liquid exposure that is continuous over the duration of the test. Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm. Summary of Test Method 4.
Originally approved in You can read about the individual protective features of each product by logging on to WorkingPerson.
However, it is possible that differences in chemical and molecular properties for example, surface tension may lead to different results. If this occurs, record the failure, and terminate the test.
If the liquid passes through the specimen, the material fails the test for resistance to penetration of the liquid. This test method determines resistance to penetration only. Special means used to seal specimens in the test cell should be documented in the report.
Also, remember just assuming that the workwear you have chosen will properly protect you is a risk that is not worth risking injury. See Table 1 for parts and materials. It is recommended that any special means used to seal specimens in the test cell be validated for asm sufficient integrity of the specimen in the test cell, not contribute to specimen damage, and not interfere with the observation of liquid penetration.
What are ASTM F Safety Standards? |
Also, bring the liquid to the test temperature. Of course, normal continuous regions of protective clothing are also tested for their effective barrier shielding abilities. NOTE 2—Material is aluminum. The values in parentheses are for information only.