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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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If the temperature of the g903 and liquid were different at the start of the test, report both. 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.

What are ASTM F903 Safety Standards?

B Procedure C is that speci? Special means used to seal specimens in the test cell should be documented in the report. The purpose of the screen is to limit distention of the test specimen to 0. Historical Version s – view previous versions of standard.

You can read about the individual protective f03 of each product by logging on to WorkingPerson. See Table 1 for parts and materials.

If not, one of the following methods has usually been effective in enhancing droplet visibility by producing a characteristic discoloration.

What are ASTM F Safety Standards? |

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. The droplet must remain easily visible to ensure that a droplet that penetrates the material will be seen. 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 discoloration see 9. F — 03 FIG. A transparent cover see Fig.

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Finished items and specimens are particularly important areas for testing as they consist of discontinuous and seamed regions of atm clothing.

These procedures entail different hydrostatic pressures 9f03 durations of liquid exposure. Work Item s – proposed revisions of this standard. However, it is possible that differences in chemical and molecular properties for example, surface tension lead to different results.

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. Used for other speci?

For more sensitive analysis use Test Method F to determine permeation. Precision and Bias Flush the test cell with an appropriate wash liquid to remove or render harmless any traces of the test chemical. A number in parentheses indicates the year of last reapproval.

If the liquid passes through the specimen, the material fails the test for resistance to penetration of the liquid. Passing results indicate that no liquid penetration was observed over the duration of the test exposure.

A superscript epsilon e indicates an editorial change since the last revision or reapproval.

In this test method, all procedures involve liquid exposure that is continuous over the duration of the test. Also, bring the liquid to the test temperature. A transparent cover is optional. If this occurs, record it as a failure and terminate the test. Originally approved in NOTE 2—Material is steel.

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Procedure C uses a 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. Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters. Of course, normal continuous regions of protective clothing are also tested for their effective barrier shielding abilities.

However, it is possible that differences in chemical and molecular properties for example, surface tension may lead to different results. If you feel that your comments have asmt received a fair hearing you should make your views t903 to the ASTM Committee aastm Standards, at the address shown below. If this occurs, record the failure, and terminate the test.

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. Suggestions are provided for how to select an appropriate procedure for liquid contact.

Referenced Documents asmt separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. NOTE 2—Material is transparent shatterproof-resistant plastic sheet. NOTE 2—Material is aluminum. This test method determines resistance to penetration ff903.