# Poisoning, toxic, noxious, or allergenic effect, unspecified at Mistras Group, Inc.
> OSHA SIR `2018032992` · 3/28/2018 · CHANNAHON, ILLINOIS
## Severity
- **1 hospitalization**
- **Body part:** BODY SYSTEMS
- **Nature of injury:** Poisoning, toxic, noxious, or allergenic effect, unspecified
## Cause
- **Event:** Inhalation of harmful substance-single episode
- **Source:** Fluorine compounds, n.e.c.
## Employer
- **Name:** Mistras Group, Inc.
- **Location:** 23425 Amaco Road, CHANNAHON, ILLINOIS, 60410
- **NAICS:** 562920
- **Jurisdiction:** 1
## Narrative

An employee inhaled vacuum testing gas (stannic fluoride) from what appears to be a horseplay incident.

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*Source: [OSHA Severe Injury Reports](https://www.osha.gov/severe-injury-reports) · MORVS · CC0 1.0*