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

Clean any external parts of the test cell touched by the liquid. Resistance to permeation and degradation should be determined by other test methods.

A transparent cover is optional. 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. Flush the test cell with an appropriate wash liquid to remove or render harmless any traces of the test chemical. The droplet must remain easily visible to ensure that a droplet that penetrates the material will be seen.

Summary of Test Method 4. Special means used to seal specimens in the test cell should be documented in the report. The values in parentheses are for information only. Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm. NOTE 2—Material is aluminum. A superscript epsilon f9033 indicates an editorial change since the last revision or reapproval.

The values in parentheses are for information only. If the liquid passes through the specimen, the material fails the test for resistance astn penetration of the liquid.

What are ASTM F903 Safety Standards?

If the material was taken from garments, report under ast, for each material, composite, type of seam, or other constructions tested, and its aatm on the garment.

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F are the standard methods of testing used for chemically resistant workwear. This standard is subject to revision at any time by the responsible technical committee and must be reviewed every? For nonuniform samples, record the lowest values. 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.

Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. 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 aatm cannot be directly assessed by this test method, such as interface areas between different items of clothing and equipment.

Use Test Method F for this purpose. 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. Of course, normal continuous regions of protective clothing are also tested for their effective barrier shielding abilities.

If the temperature of the cell 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.

However, it is possible that differences in chemical and molecular properties for example, surface tension may lead to different results. If not, one of the following methods has usually been effective in enhancing droplet visibility by producing a characteristic discoloration. For more sensitive analyses, use either Test Method F or F to determine permeation. Your Flame-Resistant Clothing Refresh.

Examples of retaining screens are 9f03 by 11 nylon screen, 14 by 14 polypropylene screen, and 13 by 13 polyester screen. Areas such as hands, legs, eyes, face and torso should be completely protected. The deleterious effects of these chemicals can range from acute trauma such as skin irritation and burn to chronic degenerative disease, such as cancer.

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Asstm more sensitive analysis use Test Method F to determine permeation.

You can read about the individual protective features of each product by logging on to WorkingPerson. This is done to determine their resistance to visible penetration, which occurs with continuous chemical contact to the outer portion of the clothing. 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.

If this occurs, record it as a v903 and terminate the test. 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. Procedure D also has utility for assessing the robustness of protective clothing materials and assemblies as part of quality systems.

A number in parentheses indicates the year of last reapproval.

What are ASTM F Safety Standards? |

Also, remember just assuming that the workwear you have chosen will properly protect you is a risk that is not worth risking injury. The resistance f093 visible penetration of the test liquid is determined with the liquid in continuous contact with the normally outside surface of the test specimen.

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