Investigation results: the lot number which was provided does not correspond to a lot number in our system.As the lot number was no provided, the manufacturing batch record could not be reviewed nor could product retains.Two us-906 locks were returned by the customer.The indicator dots on both locks were dark grey upon inspection and appeared to have transitioned properly.As per iso 11140-1, the indicator demonstrated a visible change as specified by the manufacturer.The color appears to be slightly cloudy but not faded back to its original, pre-processed blue color.Complaints for steam indicator inks can occur if they are not stored correctly.Product should be stored at 20 - 25°c average, with a relative humidity range of 30 - 70%.Avoid exposure to direct sunlight and/or heat sources.Store away from sterilants.Labeling is provided to guide the end user to avoid exposure to natural or uv lights, extreme heat sources, and residual sterilants.The issue has been logged into the complaint system.
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