LCS Laboratory Inc. provides specialized testing for residual diisocyanates adsorbed on workers’ clothing, addressing concerns about second-hand exposure in cases where individuals have been sensitized to these chemicals. This service was developed to help identify potential sources of exposure after a sensitized individual experiences severe reactions to chemical odours or vapours carried by others’ clothing.
Why Test for Second-Hand Isocyanate Exposure?
Isocyanates are a group of highly reactive chemicals commonly used in industries such as automotive, construction, and manufacturing. For some individuals, exposure can result in sensitization of the skin or respiratory system. Sensitization may occur from a single acute exposure or repeated contact with low concentrations. Once sensitized, a person can develop severe asthma-like reactions to even trace amounts of isocyanates, far below the Ontario Occupational Exposure Limit of 5 ppb (2017). These reactions may occur immediately after exposure or several hours later, making early identification of second-hand contamination critical.
Our Testing Process
LCS Laboratory uses OSHA 42/47 methods to detect free isocyanates in the headspace around potentially contaminated clothing with a detection limit of 0.5 ppb. This ultra-sensitive testing identifies trace levels of isocyanates in air surrounding the sample, helping determine if clothing is a source of harmful exposure.
Critical Handling and Submission Requirements
Testing for isocyanates is time-sensitive, as free isocyanates dissipate over time and may become undetectable within 2-3 days after exposure. To ensure accurate results:
- Sample Packaging: Place the clothing in an airtight bag immediately after collection to prevent contamination or loss of isocyanates.
- Shipping: Samples must be shipped overnight to the laboratory.
- Pre-Submission Contact: Notify the laboratory before shipping so we can prepare to receive and preserve the samples upon arrival.
Who Should Use This Test?
This service is invaluable for workplaces dealing with isocyanates, individuals already sensitized to these chemicals, and families or colleagues concerned about secondary exposure through contaminated clothing.
Contact Us for Support
If you suspect isocyanates on clothing are causing health reactions, LCS Laboratory Inc. is here to help. Contact us for guidance, to arrange testing, or for detailed instructions on sample submission. Safeguard your health and workplace safety with our expertise.
