Call 1-877-464-0623 Toll Free,  Monday - Friday,  8:00am to 5:00pm CST.

Feed Testing

Water Testing

Environmental Testing

Environmental Analysis

Environmental Sampling Guide

Sampling Instructions

Testing Supplies

Sample Tracking

Important Information

Research

Certification

Contact SDK

Web Site Links

Formerly Peterson Labs

 

Environmental Sampling Guide

Remember, good sampling techniques ensure accurate test results!  Click here for accurate sampling instructions.

Many samples require special container or preservatives. The following table gives the current requirements for various samples. Please contact the lab if you have additional questions or concerns.


Parameter

Sample Size/Container

Preservative

Holding Time

Ammonia

1 Liter, Plastic

H2SO4, Cool

28 days

BOD/CBOD

1 Liter, Plastic

Cool

48 hours

BTEX-Water

40ml, EPA Vial

HCI, Cool

14 days

BTEX-Solid

4oz., Glass/Teflon Lid

Cool

14 days

COD

100ml, Plastic

H2SO4, Cool

28 days

Chloride-Fluoride-Sulfate

100ml, Plastic

o

28 days

Chloride-Solid

4oz., Plastic

o

28 days

Hardness

100ml, Plastic

HNO3

6 months

Metals

1 Liter, Plastic

HNO3, Cool

6 months

Nitrate, Nitrite-Nitrogen

100ml, Plastic

Cool

48 hours

Oil & Grease

1 Liter, Plastic

H2SO4, Cool

14 days

Pesticides

1 Liter, Glass

Cool

7 days ext./40

pH

100ml, Plastic

Cool

Immediate

Sulfide

100ml, Plastic

Zn Acetate, NaOh

7 days

Solids

500ml, Plastic

Cool

7 days

TKN

1 Liter, Plastic

H2SO4, Cool

28 days

Total Coliforms

128ml, Sterile Plastic

Sodium Thiosulfate

48 hours

TRPH - Water

1 Liter, Glass

HCI, Cool

14 days

TRPH - Soil

4oz., Glass

Cool

14 days

Volatile Organics

240ml EPA Vial

HCI, Cool

14 days


Certifications and Memberships:     AOCS     NFTA     AAFCO     AOAC     AACC     

Copyright 2003     SDK Laboratories