ASTM F903 PDF

May 25, 2020   |   by admin

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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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 atm clothing that resists permeation, penetration, and degradation. If the temperature of the cell and liquid were different at the start of the test, report both.

ASTM F–03 防护服用材料耐液体渗透性的试验方法_百度文库

However, it is possible astk differences in chemical and molecular properties for example, surface tension may lead to different results. 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. A transparent cover see Fig.

Inadequate sealing of the specimen can lead to a false result observed liquid penetration that is due to the method of asm rather than penetration through the specimen. Originally approved in Random specimens shall be generated as described in Practice E T903 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 penetration.

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Historical Version s – view previous versions of standard. Also, bring the liquid to the test temperature. Areas such as hands, legs, eyes, face and torso should be completely protected.

What are ASTM F Safety Standards? |

Current edition approved January 10, 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. Examples of retaining screens are 11 by 11 nylon screen, 14 by 14 polypropylene screen, and 13 astn 13 polyester screen.

If this occurs, record the failure, and terminate the test. Use Test Method F for this purpose. Remove asgm specimen and gasket from the cell and discard.

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.

What are ASTM F903 Safety Standards?

This is done to determine their resistance to visible penetration, which occurs with continuous chemical contact to the outer portion of the clothing. A Use of a retaining screen is optional. A transparent cover is optional.

The values in parentheses are for information only. Precision and Bias BoxChicago, IL You can read about the individual protective features of each product by logging on to WorkingPerson.

A number in parentheses indicates the year of last reapproval. Individual reprints single or multiple copies of this standard asrm be obtained by contacting ASTM at the above address or at phonefaxor service astm. 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.

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If not, one of the following methods has usually been effective in enhancing droplet visibility by producing a characteristic discoloration. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility. For more sensitive analysis use Test Method F to determine permeation. For more sensitive analyses, use either Test Method F or F to determine permeation.

Use Test Method Xstm 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 asstm clothing and equipment. Of course, normal continuous regions of protective clothing are also tested for their effective barrier shielding abilities. Link to Active This link will always route to the current Active version of the standard.

Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend.

Specific hazards are given in Section 7. 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.