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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What are ASTM F903 Safety Standards?

Your Flame-Resistant Clothing Refresh. A superscript epsilon e indicates an editorial change since the last revision or reapproval. The droplet must remain easily visible to ensure that a droplet that penetrates the material will be seen. In this test method, all procedures involve liquid exposure that is continuous over the duration of the test.

For more sensitive analysis use Test Method F to determine permeation. The resistance to visible penetration of the test liquid is determined with the liquid in continuous contact with the normally outside exterior surface of the test specimen.

If the liquid passes through the specimen, the material fails the test for resistance to penetration of the liquid.

ASTM F–03 防护服用材料耐液体渗透性的试验方法_百度文库

If not, one of the following methods has usually been effective in enhancing droplet visibility by producing a characteristic discoloration. This is done to determine their resistance to visible penetration, which occurs with continuous chemical contact to the outer portion of the clothing.

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.

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Also, remember just assuming that the workwear you have chosen will properly protect you is a risk that is not worth risking injury.

What are ASTM F Safety Standards? |

NOTE 2—Material is transparent shatterproof-resistant plastic sheet. BoxChicago, IL Originally aztm in It asfm the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 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. Remove the specimen and gasket from the cell and discard.

It is important to note that the ASTM F standard testing does not apply to the crotch area or the finger tip areas of gloves.

Resistance to permeation and degradation t903 be determined by other test methods. This standard is subject to revision at any time by the responsible technical committee and must be reviewed every?

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

Used for other speci? Of course, normal continuous regions of protective clothing are also tested for their effective barrier shielding abilities. 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.

Clean any external parts of the test cell touched by the liquid. These procedures entail different hydrostatic pressures and durations of liquid exposure. However, it is possible that differences in chemical and molecular properties for example, atsm tension lead to different results. 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.

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Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM Aastm Headquarters.

Last previous edition approved in as F – 99a. Random specimens shall be generated as described in Practice E The resistance to visible penetration of the test liquid is determined with the liquid in continuous contact with aastm normally outside surface of the test specimen.

F — 03 FIG.

NOTE 2—Material is aluminum. A transparent cover is optional. With the test cell vertically oriented, allowing the air to vent, carefully,? Use of a funnel is one way to make? B Procedure C is that speci?

Test specimens of protective clothing are exposed to a variety of chemical and molecular properties. For more sensitive analyses, use either Test Method F or F to determine permeation.

Procedure D also has utility for assessing the robustness of protective clothing materials and assemblies as part of quality systems. If this occurs, record it as a failure and terminate the test. Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefax asm, or service astm.

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