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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A number in parentheses indicates the year of last reapproval. Summary of Test Method 4. In this test method, all procedures involve liquid exposure that is continuous over the duration of the test.

What are ASTM F Safety Standards? |

Areas such as hands, legs, eyes, face and torso should be completely protected. Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm. See Table 1 for parts and materials. Examples of retaining screens are 11 by 11 nylon screen, 14 by 14 polypropylene screen, and 13 by 13 polyester screen.

If a retaining screen is used, include it 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.

What are ASTM F903 Safety Standards?

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. 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. The droplet must remain easily visible to ensure that a droplet that penetrates the material will be seen.

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You can read about the individual protective features of each product by logging on to WorkingPerson. The purpose of the screen is to limit distention of the test specimen to 0.

For nonuniform samples, record the lowest values. A superscript epsilon e indicates an editorial change since the last revision or reapproval. Use Test Method F to provide a complete evaluation of the liquid integrity of protective clothing or ensembles, particularly areas of the clothing or ensembles that cannot be directly assessed by this test method, such as interface areas between different items of clothing and equipment.

ASTM F–03 防护服用材料耐液体渗透性的试验方法_百度文库

Astj more sensitive analysis use Test Method F to determine permeation. F are the standard methods of testing used for chemically resistant workwear. Special means used to seal specimens in the test cell should be documented in the report.

Suggestions are provided for how to select an appropriate procedure for liquid contact. If this occurs, record it as a failure and terminate the test.

B Procedure C is that speci? However, it is possible that differences in chemical and molecular properties for example, surface tension may lead to different results. These ashm entail different hydrostatic pressures and durations of liquid exposure. This test method determines resistance to penetration only.

This standard is ff903 to revision at any time by the responsible technical committee and must be g903 every? 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. This is done to determine their resistance to visible penetration, which occurs with continuous chemical contact to the outer portion of the clothing. Flush the test cell with an appropriate wash liquid to remove or render harmless any g903 of the test chemical.

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If not, one of the following methods has usually been effective in enhancing droplet visibility by producing a characteristic discoloration. F — 03 FIG. If this occurs, record the failure, and terminate the test.

The resistance to visible penetration of the test liquid is determined with the liquid in astj contact with the normally outside surface of the test specimen. 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.

NOTE 2—Material is steel. BoxChicago, IL Resistance to permeation and degradation should be determined by other test methods. Passing results indicate that no liquid penetration was observed over the duration of the test exposure. 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 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.

The specimen fails if a droplet of liquid appears or a characteristic discoloration see 9.

It is 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. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.