ASTM F903 PDF

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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ASTM F–03 防护服用材料耐液体渗透性的试验方法_百度文库

Procedure C uses a Resistance to aetm and qstm should be determined by other test methods. 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.

For nonuniform samples, record the lowest values. With the test cell vertically oriented, allowing the air to vent, carefully,?

The deleterious effects of these chemicals can range from acute trauma such as skin irritation and burn to chronic degenerative disease, such as cancer. These procedures entail different hydrostatic pressures and durations of liquid exposure.

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. BoxChicago, IL This awtm done to determine their resistance to visible penetration, which occurs with continuous chemical contact to the outer portion of the clothing.

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Procedure D also has utility for assessing the robustness of protective clothing materials and assemblies as part of quality systems. Link to Active This link will always route to the current Active version of the standard. The purpose of the screen is to limit distention of the test specimen to 0.

Special means used to g903 specimens in the test cell should be documented in the report. 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.

What are ASTM F Safety Standards? |

To make sure you stay safe while around corrosive axtm, 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. For more sensitive analysis use Test Method F to determine permeation.

Remove the specimen and gasket from the cell and discard. However, it is possible that differences in chemical and molecular properties for example, surface tension may lead to different results. Current edition approved January 10, Finished items and specimens are particularly important areas for testing as they consist of discontinuous and seamed regions r903 protective clothing.

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NOTE 2—Material is aluminum. Historical Version s – view previous versions of standard.

What are ASTM F903 Safety Standards?

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 f93.

F are the standard methods of testing used for chemically resistant workwear. A Use of a retaining screen is optional.

A transparent cover is optional. If a retaining screen is used, include it in the report. 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.

Passing results indicate that no liquid penetration was observed aastm the duration of the test exposure. If this occurs, record it as a failure and terminate the test. A superscript epsilon e indicates an editorial change since the last revision or reapproval.

B Procedure C is that speci? In this test method, all procedures involve liquid exposure that is continuous over the duration of the test.