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ERMI Chain of Custody Sample Log Filling Form - Mycometrics 2025

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The document is a Chain-of-Custody (COC) form from Mycometrics, LLC, detailing the process for submitting samples for mold analysis. It includes sections for client and project information, turnaround time options with associated surcharges, sample logging, and specific notes regarding fees and sample handling. The form emphasizes the importance of legible printing for accurate result delivery and outlines conditions under which recommendations or interpretations cannot be provided.

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Got questions?

We have answers to the most popular questions from our customers. If you can't find an answer to your question, please contact us.

How to fill out a chain of custody form?

Properly filled out chain of custodies should include: sample ID, location of source, date and time collected, date and time received at the lab, sample preservation, analysis required, name of collector, pertinent field data, names of those who had custody of the sample, and reporting/billing contacts.

How to lower ERMI score?

Answer. Cleaning will lower ERMI all reservoirs in air, wall and floor coverings and possessions. HEPA will prevent addition of inflammagen burden to dust but wont correct the ERMI values in the dust.

What is an acceptable mold score?

What are acceptable mold results? A typical mold spore count in a closed space is 200-500 spores. A mold spore count of 1-1500 mold spores in a room is normal and safe as long as visible mold growth is not present and no water damage or excess moisture exists.

What is the difference between Ermi and Hertsmi?

ERMI Group 1: Water Damage MoldsGroup 2: Common Indoor Molds 1) Aspergillus flavus/oryzae 27. Acremonium strictum 2) Aspergillus fumigatus 28. Alternaria alternata 3) Aspergillus niger 29. Aspergillus ustus 4) Aspergillus ochraceus 30. Cladosporium cladosporioides122 more rows

How to calculate ERMI score?

To calculate the ERMI the individual concentrations of the mold species detected are log-transformed and the sum of group 2 logs is subtracted from the sum of group 1 logs.

What is a 20 ERMI score?

Concentrations of each of the 36 molds are used to derive an ERMI score that rates the moldiness of each sample against those tested by the US-EPA. These values range from approximately 10 (low moldiness) to 20 (high moldiness), with an average home having a score of 0.

How is Ermi calculated?

The ERMI values were calculated by taking the sum of the logs of the concentrations of Group 1 molds (s1) and subtracting the sum of the logs of the concentrations of Group 2 molds (s2) (4) as follows: ERMI = i = 1 26 log 10 ( s 1 i ) - j = 1 10 log 10 ( s 2 j ) .

ERMI Chain of Custody Sample Log Filling Form - Mycometrics 2025

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