Note that some PT samples for the current PT round will require specific preparation prior to analysis. For details, please refer to the instruction sheets.

Testing Instructions

Click on any of the test groups below to download the instructions sheet (PDF format).

January/June

Instruction SheetCodeVersion
January General Instructions1.0
June General Instructions1.0
OC Pesticides in WaterC06A1.0
PCBs in WaterC06B1.0
PAHs in WaterC071.0
PCB in OilC081.0
Metals on Air FilterC091.0
BTEX THM VOC in WaterC161.1
Metals in SoilC171.1
PAHs in SoilC181.0
OP Pesticides in WaterC221.0
Aryloxy Acid Pesticides in WaterC241.0
Phenolic Compounds in WaterC251.0
Glyphosate in WaterC271.0
Aldicarb in WaterC291.0
BTEX and PHCs in SoilC31A1.0
PHCs in SoilC31B1.0
Oil and Grease in WaterC341.0
PCBs in SoilC351.0
VOCs in SoilC361.1
VOCs by TCLPC381.2
Metals/Anions/Cyanide in Soil (TCLP)C391.1
BTEX and PHCs in WaterC40A1.1
PHCs in WaterC40B1.0
Hexavalent ChromiumC411.0
Solids in SoilC431.1
Nutrients in SoilC441.1
Anions in SoilC451.1
Acidity in WaterC461.0
Haloacetic Acids in WaterC471.0
Hexavalent Chromium In SoilC741.0
Particle Size in SoilC751.0
Oil and Grease in SoilC761.0
Pesticides in SoilC771.0

March/October

Instruction SheetCodeVersion
March General Instructions3.0
October General Instructions1.0
Major Ions in WaterC01A1.0
Simple Nutrients in WaterC01B1.0
Metals (Full range) in WaterC02A1.1
Metals (High Range) in WaterC02B1.1
Metals (Total) in WaterC02C1.1
Complex Nutrients in WaterC031.1
Solids in WaterC04A1.0
BOD in WaterC04B1.1
Turbidity in WaterC04C1.0
COD in WaterC04D1.1
Microbiology in WaterC05A1.0
Microbiology (PA) in WaterC05B1.0
Toxicology in WaterC11 | C12 | C131.2
Cyanide in WaterC141.0
pH in WaterC151.0
Mercury in WaterC191.1
Chlorine in WaterC321.0
Total Phenolics in WaterC331.0
Colour in WaterC371.0
Sulphide in WaterC421.0
Potency in CannabisC701.0
Pesticides in CannabisC711.0
Metals in Cannabis SurrogateC721.0
Residual Solvents in Hemp OilC731.0
Water Activity and Moisture in HempC781.0
General notes

PT results must be reported in the units indicated, using the PTC web-data-entry system by midnight of the study deadline. Failure to report results by this time will be treated as an unacceptable PT. Provide information on results, method and date analyzed. Provide name and telephone number of laboratory contact. PT samples must be treated with the same effort and workflow as the majority of client samples. Collusion or falsification of PT study data will result in withdrawal of PT recognition and may also result in withdrawal of accreditation.

Request more information

If you are interested in acquiring PT for your organization, send an email to communications@ptcanada.org