Proficiency Testing - Oxygen, dissolved in water Item no. ERA-212 Unit each Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) WP 381 (October 16, 2026 - November 30, 2026) Add to cart All product details
Certified Reference Material - Oxygen, dissolved in water Item no. ERA-213 Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Oxygen, dissolved in water Item no. ERA-213QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - PFAS - in wastewater Item no. ERA-404QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - PAH-GC & GCMS Item no. ERA-4882QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Lithium Item no. ERA-4992QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Solids, waste water (WasteWatR TM) Item no. ERA-499QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Total Residual Chlorine, waste water (WasteWatR TM) Item no. ERA-501QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Cyanide, waste water (WasteWatR TM) Item no. ERA-502QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Simple Nutrients, waste water (WasteWatR TM) Item no. ERA-505QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Minerals, waste water (WasteWatR TM) Item no. ERA-506QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Hardness, waste water (WasteWatR TM) Item no. ERA-507QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Mercury, waste water (WasteWatR TM) Item no. ERA-514QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Total Phenolics (4-AAP), waste water (WasteWatR TM) Item no. ERA-515QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Demand, waste water (WasteWatR TM) Item no. ERA-516QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Tin & Titanium, waste water (WasteWatR TM) Item no. ERA-517QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponseiter Oil & Grease, waste water (WasteWatR TM) Item no. ERA-518QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - HEM / SGT-HEM, waste water (WasteWatR TM) Item no. ERA-519QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Complex Nutrients, waste water (WasteWatR TM) Item no. ERA-525QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
Proficiency Testing - Mercury, waste water Item no. ERA-574 Unit each Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) WP 380 (September 14, 2026 - October 29, 2026)WP 381 (October 16, 2026 - November 30, 2026)WP 382 (November 6, 2026 - December 21, 2026)WP 383 (December 14, 2026 - January 28, 2027) Add to cart All product details
Proficiency Testing - pH, waste water Item no. ERA-577 Unit each Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) WP 380 (September 14, 2026 - October 29, 2026)WP 381 (October 16, 2026 - November 30, 2026)WP 382 (November 6, 2026 - December 21, 2026)WP 383 (December 14, 2026 - January 28, 2027) Add to cart All product details
Proficiency Testing - Demand, waste water Item no. ERA-578 Unit each Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) WP 380 (September 14, 2026 - October 29, 2026)WP 381 (October 16, 2026 - November 30, 2026)WP 382 (November 6, 2026 - December 21, 2026)WP 383 (December 14, 2026 - January 28, 2027) Add to cart All product details
Proficiency Testing - Complex Nutrients, waste water Item no. ERA-579 Unit each Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) WP 380 (September 14, 2026 - October 29, 2026)WP 381 (October 16, 2026 - November 30, 2026)WP 382 (November 6, 2026 - December 21, 2026)WP 383 (December 14, 2026 - January 28, 2027) Add to cart All product details
Proficiency Testing - Total Phenolics (4-AAP), waste water Item no. ERA-589 Unit each Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) WP 380 (September 14, 2026 - October 29, 2026)WP 381 (October 16, 2026 - November 30, 2026)WP 382 (November 6, 2026 - December 21, 2026)WP 383 (December 14, 2026 - January 28, 2027) Add to cart All product details
Proficiency Testing - 1,4-Dioxane Item no. ERA-597 Unit each Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) WP 384 (January 19, 2027 - March 5, 2027)WP 390 (July 19, 2027 - September 2, 2027) Add to cart All product details
Proficiency Testing - PFAS - Non-Potable Water Item no. ERA-599 Unit each Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) WP 381 (October 16, 2026 - November 30, 2026) Add to cart All product details
Certified Reference Material - Total Petroleum Hydrocarbons (TPH) in Water #1 Item no. ERA-600 Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Total Petroleum Hydrocarbons (TPH) in Water #2 Item no. ERA-601 Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - TPH in Water, QuiK Item no. ERA-602QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
Proficiency Testing - Gasoline Range Organics (GRO) in Water Item no. ERA-640 Unit each Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) WP 381 (October 16, 2026 - November 30, 2026) Add to cart All product details
Proficiency Testing - Diesel Range Organics (DRO) in Water Item no. ERA-641 Unit each Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) WP 381 (October 16, 2026 - November 30, 2026) Add to cart All product details
Proficiency Testing - Total Petroleum Hydrocarbons (TPH) in Water Item no. ERA-642 Unit each Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) WP 381 (October 16, 2026 - November 30, 2026) Add to cart All product details
Proficiency Testing - BTEX & MTBE in Water Item no. ERA-643 Unit each Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) WP 381 (October 16, 2026 - November 30, 2026) Add to cart All product details
Certified Reference Material - Total Organic Halides (TOX), waste water (WasteWatR TM) Item no. ERA-670 Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Nitrogen Pesticides, priority pollutant (PriorityPollutnT TM) Item no. ERA-674 Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Nitrogen Pesticides, priority pollutant (PriorityPollutnT TM) Item no. ERA-674QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Low-Level Nitroaromatics & Nitramines, priority pollutant (PrPollutnT TM) Item no. ERA-677QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
Organophosphorus Pesticides (OPP), WS Item no. ERA-681 Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - EDB/DBCP/TCP Item no. ERA-692QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Volatiles, priority pollutant (PriorityPollutnT TM) Item no. ERA-710 Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Base/Neutrals, priority pollutant (PriorityPollutnT TM) Item no. ERA-711QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Acids, priority pollutant (PriorityPollutnT TM) Item no. ERA-712 Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Acids, priority pollutant (PriorityPollutnT TM) Item no. ERA-712QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Low-Level PAHs, priority pollutant (PriorityPollutnT TM) Item no. ERA-715 Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - PCBs in Oil, priority pollutant (PriorityPollutnT TM) (1) Item no. ERA-729S Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - PCBs in Oil, priority pollutant (PriorityPollutnT TM) (1) Item no. ERA-729SQR Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - PCBs in Water, priority pollutant (PriorityPollutnT TM) (1) Item no. ERA-734S Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - BTEX & MTBE in Water Item no. ERA-760 Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Gasoline Range Organics (GRO) in Water Item no. ERA-762 Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Nitrite, waste water (WasteWatR TM) Item no. ERA-770 Unit each Analytes Select to compare Price on request - + Add to cart All product details