Lakeland Permeation & Toxicity InformationFor

4,4-METHYLENE DIANILINE

Chemical Data

info:

Fabric Permeation Resistance Test Results

The permeation tests results below indicate the time to reach a defined rate of permeation through the fabric indicated by the test.

They do not indicate a safe-wear time.

However, it is important to understand that for any standard suit configuration such as a coverall with hood, some level of inward leakage, especially with chemicals that may vaporize at normal temperatures, is inevitable. It is therefor vital to ensure that users never remain exposed to the chemical long enough for inward leakage to breach its toxicity thresholds.

PermaSURE Safe-Wear Time App

Our PermaSURE app assesses total inward leakage for Lakeland chemical suits, accounting for both fabric permeation and whole-suit inward leakage, and calculating a Safe-Wear Time – the maximum time a worker may remain exposed to the chemical before the PAC derived Toxicity thresholds for harm might be reached.

Please Note:
All test results quoted are from testing carried out at independent laboratories to the relevant {ASTM/CE} Standard(s). Unless stated otherwise tests are carried out on samples of the relevant protective material as opposed to finished garments. Note that all testing is conducted at specific temperatures according to ASTM or EN standard requirements. As permeation is affected by temperature it is important to consider the likely temperature in any application. Permeation test results record a time to a specific permeation rate as defined by the relevant standard and NOT a time to initial breakthrough of the chemical. Also note that differences may be apparent in some cases between CE and ASTM test results. Whilst the tests are similar, the CE standard records a time to a permeation rate of 1.0µg / min / cm2, whilst ASTM records a time to a permeation rate of 0.10µg / min / cm2. This may explain differences between results. As with all Personal Protective Equipment, selection should be based upon the end users risk assessment, it is the responsibility of the end user to determine the suitability of any PPE as part of this risk assessment and to comply with any/all legislative/governmental requirements. Contact Lakeland for more information.
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