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AIHA PAT Programs News and Information

Stay current on the latest news and information from AIHA PAT Programs.

May 1, 2026

PAT Programs Newsletter - May 2025

Pilot Study Invitation, Reaccreditation Activities, PAT Programs Outreach, Staff Team and Board Updates, and more...

April 30, 2026

Invitation to Participate in No-cost, Two-round Proficiency Testing (PT) Pilot Studies

Areas of Interest: Microplastics in water, PFAS in water, contaminants on plant material, and Combustion Particles by microscopy

March 13, 2026

Risk Assessment Toolkit and Opportunity Assessment Toolkit available for use

Use the same Risk Assessment and Opportunity Assessment tools the PAT Programs use.

February 12, 2026

Update to Evaluation for IHPAT Diffusive Sampler Program

Beginning with IHPAT Diffusive Sampler Round 244, the fixed 6% relative standard deviation (RSD) has been removed.

Archive

2025

November

2026 PAT Program Fees Posted
November 15, 2025

April

PAT Program Scheme Plans Added to PAT Portal
April 7, 2025

January

EMPAT Culture Sample Packaging Update
January 28, 2025

2024

November

May

Beryllium Oxide Source Material Change - Starting BePAT 65 (July1, 2024)
May 7, 2024

March

January

Mercury Added to the IHPAT Program
January 4, 2024

2023

October

ELPAT Methods List Updated
October 31, 2023

September

March

Organic Solvent Label Update
March 27, 2023

January

ELPAT Vial Label Update
January 1, 2023

2022

October

August

Airborne Particulates added to the IHPAT Program
August 11, 2022

June

ELPAT Packaging Update
June 21, 2022

April

March

January

Canadian Laboratories - Help Us Prepare for CARM
January 31, 2022

2021

November

BAPAT Data Reporting Reminder and Impact on Scoring
November 16, 2021

September

PAT Programs concludes the Total Spore Count pilot program.
September 1, 2021

August

IHPAT Diffusive Sampler Badge Program Update
August 6, 2021

June

May

AIHA PAT Programs Maintains ISO/IEC 17043 Accreditation
May 13, 2021

March

IHPAT Organic Solvents Feedback - Methanol Analysis and Value to the Program
March 24, 2021

February

January

COVID-19 Reopening Guidance Document for Laboratories
January 26, 2021

2020

December

October

September

September 2020
September 24, 2020

June

June 2020
June 1, 2020

April

April 2020
April 7, 2020

2019

October

October 2019
October 19, 2019