In the ASTM F1383-12e1 standard published by the American Test and Materials Association (ASTM), a test method is presented to prove how permeable a chemical substance is in contact with protective clothing materials. The full name of this standard is as follows: ASTM F1383-12e1 Standard test method for the permeability of liquids and gases through protective clothing materials under intermittent contact conditions.
The test method is used to measure the chemical permeability from protective clothing samples under the condition of intermittent contact of a liquid or gaseous test chemical with the sample. In these tests, protective clothing is contacted with chemical substances intermittently, not continuously as in the test method described in the ASTM F739 standard.
The ASTM F1383-12e1 standard is normally used to evaluate finished pieces of protective clothing and flat samples of protective clothing materials. Completed protective clothing items include gloves, arm shields, aprons, hats, boots, respirators and similar items.
In some cases, the pattern of penetration that occurs under intermittent contact conditions is compared to the pattern of penetration that occurs during continuous contact. The test method described in the ASTM F739 standard is recommended for measuring the permeability of the chemical under the conditions of continuous contact with the garment sample.
The main fundamental measures of the effectiveness of a garment as a barrier against chemicals are detection time, standardized transit time and cumulative permeability. These data are used to compare materials in the process of clothing selection to protect against hazardous chemicals. Long detection times, standardized transition times and low cumulative penetration are always preferred features.
Acceptable skin with many chemicals for today There is limited quantitative information available on contact levels. Therefore, the data obtained by this test method are not used to determine safe exposure levels.
With the experience gained over many years, our organization also provides standard testing services for the permeability of liquids and gases from protective clothing materials under ASTM F1383-12e1 intermittent contact conditions, within the framework of laboratory services of the materials with a trained and expert staff.
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