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Feed Testing

Water Testing

Environmental Testing

Testing Supplies

Sample Tracking

Important Information



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Formerly Peterson Labs


The following information will answer most questions about using our services. For addtional information, please contact us by E-Mail or telephone toll free at 877-464-0623.

Sample Submission Information

Sample size requirements can vary greatly depending upon the analyses required. The bags and bottles supplied by the laboratory are adequate for most requirements. In general, quart-sized containers for feeds and pint-sized containers for liquids are sufficient. Plese contact the lab for additional assistance. You may fill out and print a copy of the Sample Submission Form by Clicking here to enclose with your sample.

Turnaround Time

Results for routine feed and water analyses are normally reported in two to three working days. "RUSH" services are available at double the normal fee. Additional charges may be incurred if work on a Saturday, Sunday or holiday is required. Please contact the lab for further information.

Sample Reporting

Results are normally sent via mail, but can be faxed, e-mailed or phoned. Please be sure to include all information required for reporting. Results can also be reported on DataTrak that allows the client to electronically import and manage analytical results. Please contact the lab for further information.

Sample Storage

Samples are normally retained for thirty days unless special arrangements are made in advance. Analytical data is stored for seven years. A charge may be incurred for retrieving data beyond six months.

Chain of Custody

Chain of Custody forms are available and should accompany environmental samples or samples which may become involved in litigation. Samples involved in litigation will be kept in locked storage.

Hazardous Waste

All samples of hazardous waste will be returned to the client for disposal.

Quality Assurance/Quality Control

A separate QA/QC report consisting of blanks, duplicates, spikes and checks is available for a fee. Please request this report at sample submission.


Analytical results are available only to the client unless the lab is notified in writing.

Invoicing and Statements

Analyses completed during the month are invoiced at the beginning of the next month. Terms are net thirty days. MasterCard and VISA are accepted. Accounts 30 days past due will accrue a service charge of 1.5% per month.

Certifications and Memberships:     AOCS     NFTA     AAFCO     AOAC     AACC     

Copyright 2003     SDK Laboratories