Testing FAQ

Below you’ll find helpful information supporting our many testing services. If you have additional questions, please contact us to discuss your questions or needs in more detail.

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LIMS Chain of Custody (CoC) Form Submissions

For enhanced service to our clients, Log10® utilizes a Laboratory Information Management System (LIMS) for the management of our lab samples, data entry, and reporting. LIMS systems offer key functional benefits such as sample management, immediate tracking, timeliness,
and workflow traceability automation. This allows for increased efficiency as well as decreasing the potential for errors when submitting samples and reporting results.

To avoid any delay in sample processing and reporting, an electronic Chain of Custody (COC) form must be utilized for any sample submissions to the Log10® laboratory. The COC must be completed and emailed to laboratory@log10.com prior to sample arrival to the

Clients will receive copies of the COC form. Formal training on its completion & submission is provided during the client onboarding process. Contact laboratory@log10.com at any time to set up COC refresher or new team member training.


All laboratory results reports & environmental trend graphs are autogenerated through our Laboratory Information Management System (LIMS) in PDF format. If paper copies are needed, they must be requested during account set-up.

If an amendment to a report is required any information that is changed will be clearly identified and the reason for the amendment and a reference to the original report will be included in the amended results report.

The amended report number shall have a period and sequential number after the existing LAB No. and are issued as follows: (i.e., LAB No. 0000.1 replaces 0000).

All reports are confidential and are sent only to those individuals identified by the Client’s Account Administrator. Only the Account Administrator may request or approve changes to their report distribution list or request changes to an issued report. Requested changes must be sent in writing to laboratory@log10.com. Verbal changes without written confirmation will not be authorized.

Sample Re-Runs

Clients that question the analytical results provided may request a re-test or re-run of the sample retain. If the re-test confirms the original result, within the established method variability or uncertainty, the client will be charged for the cost of the re-analysis.

Shipping and Handling

Sample Reception: Samples are received from all domestic or international parcel or freight carriers. Samples should be sent in secure containers and marked: Attn: Laboratory. Sample packing and shipping instructions are available to our clients upon request.

Sample Drop Off: Samples can be dropped off at our business office Mon.- Fri. from 8:00 a.m. – 5:00 p.m. Our business office is closed on the weekends, but we are available for sample drop off. You must contact us at 580-304-7953 to arrange a delivery time with our laboratory

Turnaround Time & Rush Testing Services

Standard turnaround time for analyses is listed in the analytical testing price tables of our analytical testing page. Most sample analysis begins on the same day they arrive. Unless otherwise dictated by the client as an urgent or rush sample, samples arriving after 5:00pm may be held until the
next morning.

Additional charges are applied for requested “Rush” or “Urgent” samples received as listed below:

  • After Hours Samples (Sample Received and Analysis Started (per client request) After 5:00 p.m.) – $50.00 plus standard analysis cost
  • Weekend Samples (Sample Received and Analysis Started (per client request) on a Sunday) – $75.00 plus standard analysis cost
  • Holidays (Sample Received and Analysis Started (per client request) on a Log10® Recognized Holiday – $125.00 plus standard analysis cost

All “Rush” or “Urgent” samples must be pre-arranged with the laboratory prior to delivery.


Clients will be billed for services within 14 days of their completion. All services and analytical charges are subject to Net 30 payment terms unless another term has been agreed upon in writing and documented in the Pricing Agreement or Client Services Proposal and the
Client Services Terms & Conditions Agreement.

Certification & Proficiency Testing

Log10® maintains accreditation against the ISO 17025:2017 Standard – General Requirements for the Competence of Testing and Calibration Laboratories. Complete certificate and scope of accreditation information can be found on the ANSI National Accreditation Board website. Refer to certificate #AT-2115.

In addition, once a year, Log10 participates in the NSI Lab Solutions Proficiency Testing Program in the following test studies:

  • Quantitative Indicators
  • Quantitative Lactic Acid Bacteria
  • Qualitative Pathogens Set
  • Environmental Swab PT – Listeria monocytogenes

Copies of accreditation certificates or additional information on proficiency testing may also be requested directly from quality@log10.com.

Subcontracting of Analyses

Log10® only subcontracts analyses to ISO 17025:2017 accredited laboratories that have met the requirements of our supplier approval program. Analyses that are routinely outsourced are identified in the analytical testing section of this price list.

Clients will be informed in advance of any work that will be outsourced and must approve any subcontracting and subsequent pricing prior to any actions being taken. Outsourced analysis and facility information will be clearly identified in the final analytical results report that is issued.

Validation, Shelf-Life & Research Studies

Log10® specializes in the development of customized research projects such as validation studies, shelf-life studies and pathogen and probiotic challenge studies.

Validation Studies

Both H.A.C.C.P and FSMA’s Preventive Controls Rules require validation of the CCP’s and Process Preventive Controls in your Food Safety Plan. Log10® can develop a science-based validation study customized to your product(s) and operation(s) and provide a comprehensive validation report ensuring your compliance with these programs.

Shelf-Life Studies

Shelf life is defined as the length of time that a commodity may be stored without becoming unfit for use, consumption, or sale. Shelf-life determination is an integral part of any food safety and quality program as well as a requirement of the Global Food Safety Initiative (GFSI) benchmarked standards. If your need is extending or verifying the shelf-life on an existing product or establishing the shelf-life for a new product, Log10® can develop an accelerated or real-time shelf-life study that is tailored to your company’s needs and product requirements.

Research Studies

Research is a careful consideration of a study regarding a concern or a problem using scientific methods and involves both inductive and deductive methods. Whether your research needs are simple or complex, turn to Log10® to develop a scientifically valid research study or implement one that you have already created.

Contact Log10® to discuss your research, shelf-life, or validation needs.

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