Certified Reference Material - Oxygen, dissolved in water Item no. ERA-213 Unit 500 mL Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Oxygen, dissolved in water Item no. ERA-213QR Unit 500 mL Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - PFAS - in wastewater Item no. ERA-404QR Unit 2 mL (ampoule) 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
Hardness PT (Extra Volume) Item no. ERA-527 Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - PCBs in Oil Item no. ERA-563QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
Proficiency Testing - Low-Level 1,2,3-TCP Item no. ERA-596 Unit each Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) WS 348 (July 7, 2025 - August 21, 2025)WS 354 (January 12, 2026 - February 26, 2026)WS 360 (July 13, 2026 - August 27, 2026)WS 366 (January 11, 2027 - February 25, 2027)WS 372 (July 12, 2027 - August 26, 2027) Add to cart All product details
Certified Reference Material - Color, Water Supply Item no. ERA-661C Unit 30 mL Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Unregulated Volatiles, potable water (PotableWatR TM) Item no. ERA-683 Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Haloacetic Acids (HAA), potable water (PotableWatR TM) Item no. ERA-684 Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Semivolatiles #1, potable water (PotableWatR TM) Item no. ERA-690 Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Semivolatiles #2 Herbicides potable water (PotableWatR TM) Item no. ERA-691 Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Metals, potable water (PotableWatR TM) Item no. ERA-697 Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Inorganics, potable water (PotableWatR TM) Item no. ERA-698 Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Turbidity, potable water (PotableWatR TM) Item no. ERA-699 Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Toxaphene, potable water (PotableWatR TM) Item no. ERA-700 Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Halomethanes (THMs), potable water (PotableWatR TM) Item no. ERA-702 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 - Volatiles, PriorityPollutnT? Item no. ERA-710QR 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 - Low-Level PAHs, priority pollutant (PriorityPollutnT TM) Item no. ERA-715QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Chlorinated Acid Herbicides, priority pollutant (PriorityPollutnT TM) Item no. ERA-718 Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Low-Level PAHs in Soil, priority pollutant (PriorityPollutnT TM) Item no. ERA-722 Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Chlorinated Acid Herbicides in Soil, priority pollutant (PrPollutnT TM) Item no. ERA-723 Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Toxaphene in Soil, priority pollutant (PriorityPollutnT TM) Item no. ERA-724 Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Toxaphene in Soil, priority pollutant (PriorityPollutnT TM) Item no. ERA-724QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - PCBs in Soil, priority pollutant (PriorityPollutnT TM) Item no. ERA-726QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Base/Neutrals & Acids in Soil, priority pollutant (PriorityPollutnT TM) Item no. ERA-727 Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Organochlorine Pesticides in Soil, priority pollutant (PrPollutnT TM) Item no. ERA-728 Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - TCLP Volatiles Item no. ERA-730 Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - TCLP Organochlorine Pesticides Item no. ERA-732 Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Nitrite, waste water (WasteWatR TM) Item no. ERA-770QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Wisconsin Diesel Range Organics (DRO) in Water Item no. ERA-772QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Wisconsin Gasoline Range Org (GRO/PVOC) Water Item no. ERA-773QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Silica, waste water (WasteWatR TM) Item no. ERA-775QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Surfactants-MBAS, waste water (WasteWatR TM) Item no. ERA-776QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Turbidity, waste water (WasteWatR TM) Item no. ERA-777 Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Turbidity, waste water (WasteWatR TM) Item no. ERA-777QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - pH, potable water (PotableWatR TM) Item no. ERA-779 Unit each Analytes Select to compare Price on request - + Add to cart All product details
Proficiency Testing - Settleable Solids, waste water Item no. ERA-883 Unit each Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) WP 363 (April 14, 2025 - May 29, 2025)WP 364 (May 12, 2025 - June 26, 2025)WP 365 (June 16, 2025 - July 31, 2025)WP 366 (July 14, 2025 - August 28, 2025)WP 367 (August 11, 2025 - September 25, 2025)WP 368 (September 15, 2025 - October 30, 2025)WP 369 (October 10, 2025 - November 24, 2025)WP 370 (November 3, 2025 - December 18, 2025)WP 371 (December 8, 2025 - January 22, 2026)WP 372 (January 20, 2026 - March 6, 2026)WP 373 (February 16, 2026 - April 2, 2026)WP 374 (March 16, 2026 - April 30, 2026)WP 375 (April 20, 2026 - June 4, 2026)WP 376 (May 18, 2026 - July 2, 2026)WP 377 (June 15, 2026 - July 30, 2026)WP 378 (July 20, 2026 - September 3, 2026)WP 379 (August 17, 2026 - October 1, 2026)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 - Volatile Solids, waste water Item no. ERA-884 Unit each Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) WP 363 (April 14, 2025 - May 29, 2025)WP 364 (May 12, 2025 - June 26, 2025)WP 365 (June 16, 2025 - July 31, 2025)WP 366 (July 14, 2025 - August 28, 2025)WP 367 (August 11, 2025 - September 25, 2025)WP 368 (September 15, 2025 - October 30, 2025)WP 369 (October 10, 2025 - November 24, 2025)WP 370 (November 3, 2025 - December 18, 2025)WP 371 (December 8, 2025 - January 22, 2026)WP 372 (January 20, 2026 - March 6, 2026)WP 373 (February 16, 2026 - April 2, 2026)WP 374 (March 16, 2026 - April 30, 2026)WP 375 (April 20, 2026 - June 4, 2026)WP 376 (May 18, 2026 - July 2, 2026)WP 377 (June 15, 2026 - July 30, 2026)WP 378 (July 20, 2026 - September 3, 2026)WP 379 (August 17, 2026 - October 1, 2026)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 - Acidity, waste water Item no. ERA-885 Unit each Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) WP 363 (April 14, 2025 - May 29, 2025)WP 366 (July 14, 2025 - August 28, 2025)WP 369 (October 10, 2025 - November 24, 2025)WP 372 (January 20, 2026 - March 6, 2026)WP 375 (April 20, 2026 - June 4, 2026)WP 378 (July 20, 2026 - September 3, 2026)WP 381 (October 16, 2026 - November 30, 2026) Add to cart All product details
Proficiency Testing - Boron, waste water Item no. ERA-886 Unit each Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) WP 363 (April 14, 2025 - May 29, 2025)WP 366 (July 14, 2025 - August 28, 2025)WP 369 (October 10, 2025 - November 24, 2025)WP 372 (January 20, 2026 - March 6, 2026)WP 375 (April 20, 2026 - June 4, 2026)WP 378 (July 20, 2026 - September 3, 2026)WP 381 (October 16, 2026 - November 30, 2026) Add to cart All product details
Certified Reference Material - Low-Level Total Residual Chlorine Item no. ERA-917 Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Boron, waste water (WasteWatR TM) Item no. ERA-919 Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Nitroaromatics & Nitramines Soil, priority pollutant (PrPollutnT TM) Item no. ERA-920 Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Hexavalent Chromium in Soil, priority pollutant (PriorityPollutnT TM) Item no. ERA-921 Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Ready-to-Use VOAs in Soil, priority pollutant (PriorityPollutnT TM) Item no. ERA-924 Unit each Analytes Select to compare Price on request - + Add to cart All product details