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
Certified Reference Material - 1 liter Oil & Grease, waste water (WasteWatR TM) Item no. ERA-518 Unit 1 L Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - 1 liter 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
Certified Reference Material - HEM / SGT-HEM, waste water (WasteWatR TM) Item no. ERA-519 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
ICP Trace Metals Item no. ERA-524 Unit 500 mL Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Complex Nutrients, waste water (WasteWatR TM) Item no. ERA-525 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
Minerals PT (Extra Volume) Item no. ERA-526 Unit each Analytes Select to compare Price on request - + Add to cart All product details
Proficiency Testing - Inorganic Disinfection 2 Item no. ERA-5260 Unit each Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) WS 353 (December 1, 2025 - January 15, 2026)WS 354 (January 12, 2026 - February 26, 2026)WS 355 (February 9, 2026 - March 26, 2026)WS 356 (March 9, 2026 - April 23, 2026)WS 357 (April 13, 2026 - May 28, 2026)WS 358 (May 11, 2026 - June 25, 2026)WS 359 (June 8, 2026 -July 23, 2026)WS 360 (July 13, 2026 - August 27, 2026)WS 361 (August 10, 2026 - September 24, 2026)WS 362 (September 8, 2026 - October 23, 2026)WS 363 (October 9, 2026 - November 23, 2026)WS 364 (November 2, 2026 - December 17, 2026)WS 365 (December 7, 2026 - January 21, 2027) Add to cart All product details
Certified Reference Material - Inorganic Disinfection 2 Item no. ERA-5262 Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Inorganic Disinfection 2 Item no. ERA-5262QR 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
Proficiency Testing - Inorganic Disinfection 1 Item no. ERA-5270 Unit each Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) WS 353 (December 1, 2025 - January 15, 2026)WS 354 (January 12, 2026 - February 26, 2026)WS 355 (February 9, 2026 - March 26, 2026)WS 356 (March 9, 2026 - April 23, 2026)WS 357 (April 13, 2026 - May 28, 2026)WS 358 (May 11, 2026 - June 25, 2026)WS 359 (June 8, 2026 -July 23, 2026)WS 360 (July 13, 2026 - August 27, 2026)WS 361 (August 10, 2026 - September 24, 2026)WS 362 (September 8, 2026 - October 23, 2026)WS 363 (October 9, 2026 - November 23, 2026)WS 364 (November 2, 2026 - December 17, 2026)WS 365 (December 7, 2026 - January 21, 2027) Add to cart All product details
Certified Reference Material - Inorganic Disinfection 1 QC Item no. ERA-5272 Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Inorganic Disinfection 1 Item no. ERA-5272QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
Proficiency Testing - Inorganics PT (Extra Volume) Item no. ERA-528 Unit each Analytes Select to compare Price on request - + Add to cart All product details
Flame AA/ICP Cations Item no. ERA-530 Unit 15 mL Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Sulfite Item no. ERA-534 Unit 10 mL Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Sulfite Item no. ERA-534QR Unit 10 mL Analytes Select to compare Price on request - + Add to cart All product details
Total Phenolics (4-AAP), WS QR Item no. ERA-535QR Unit 2 mL Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - 1,4-Dioxane Item no. ERA-538 Unit 2 mL (ampoule) Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - 1,4-Dioxane Item no. ERA-538QR Unit 2 mL (ampoule) Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Metals in Soil, priority pollutant (PriorityPollutnT TM) Item no. ERA-540 Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Metals in Soil, priority pollutant (PriorityPollutnT TM) Item no. ERA-540QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Cyanide in Soil, priority pollutant (PriorityPollutnT TM) Item no. ERA-541 Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Cyanide in Soil, priority pollutant (PriorityPollutnT TM) Item no. ERA-541QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Nutrients in Soil, priority pollutant (PriorityPollutnT TM) Item no. ERA-542 Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Nutrients in Soil, priority pollutant (PriorityPollutnT TM) Item no. ERA-542QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Anions in Soil, priority pollutant (PriorityPollutnT TM) Item no. ERA-543 Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Anions in Soil, priority pollutant (PriorityPollutnT TM) Item no. ERA-543QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - TCLP Metals in Soil, priority pollutant (PriorityPollutnT TM) Item no. ERA-544 Unit each Analytes Select to compare Price on request - + Add to cart All product details
Reference Material - Nutrients in Sludge, priority pollutant (PriorityPollutnT TM) Item no. ERA-545 Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Oil & Grease (O&G) in Soil QC Item no. ERA-549 Unit each Analytes Select to compare Price on request - + Add to cart All product details
Proficiency Testing - Mercury, potable water Item no. ERA-551 Unit each Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) WS 353 (December 1, 2025 - January 15, 2026)WS 354 (January 12, 2026 - February 26, 2026)WS 355 (February 9, 2026 - March 26, 2026)WS 356 (March 9, 2026 - April 23, 2026)WS 357 (April 13, 2026 - May 28, 2026)WS 358 (May 11, 2026 - June 25, 2026)WS 359 (June 8, 2026 -July 23, 2026)WS 360 (July 13, 2026 - August 27, 2026)WS 361 (August 10, 2026 - September 24, 2026)WS 362 (September 8, 2026 - October 23, 2026)WS 363 (October 9, 2026 - November 23, 2026)WS 364 (November 2, 2026 - December 17, 2026)WS 365 (December 7, 2026 - January 21, 2027) Add to cart All product details
Proficiency Testing - pH, potable water Item no. ERA-552 Unit each Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) WS 353 (December 1, 2025 - January 15, 2026)WS 354 (January 12, 2026 - February 26, 2026)WS 355 (February 9, 2026 - March 26, 2026)WS 356 (March 9, 2026 - April 23, 2026)WS 357 (April 13, 2026 - May 28, 2026)WS 358 (May 11, 2026 - June 25, 2026)WS 359 (June 8, 2026 -July 23, 2026)WS 360 (July 13, 2026 - August 27, 2026)WS 361 (August 10, 2026 - September 24, 2026)WS 362 (September 8, 2026 - October 23, 2026)WS 363 (October 9, 2026 - November 23, 2026)WS 364 (November 2, 2026 - December 17, 2026)WS 365 (December 7, 2026 - January 21, 2027) Add to cart All product details
Proficiency Testing - Hardness, potable water Item no. ERA-555 Unit each Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) WS 353 (December 1, 2025 - January 15, 2026)WS 354 (January 12, 2026 - February 26, 2026)WS 355 (February 9, 2026 - March 26, 2026)WS 356 (March 9, 2026 - April 23, 2026)WS 357 (April 13, 2026 - May 28, 2026)WS 358 (May 11, 2026 - June 25, 2026)WS 359 (June 8, 2026 -July 23, 2026)WS 360 (July 13, 2026 - August 27, 2026)WS 361 (August 10, 2026 - September 24, 2026)WS 362 (September 8, 2026 - October 23, 2026)WS 363 (October 9, 2026 - November 23, 2026)WS 364 (November 2, 2026 - December 17, 2026)WS 365 (December 7, 2026 - January 21, 2027) Add to cart All product details
Proficiency Testing - Cyanide, potable water Item no. ERA-556 Unit each Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) WS 353 (December 1, 2025 - January 15, 2026)WS 354 (January 12, 2026 - February 26, 2026)WS 355 (February 9, 2026 - March 26, 2026)WS 356 (March 9, 2026 - April 23, 2026)WS 357 (April 13, 2026 - May 28, 2026)WS 358 (May 11, 2026 - June 25, 2026)WS 359 (June 8, 2026 -July 23, 2026)WS 360 (July 13, 2026 - August 27, 2026)WS 361 (August 10, 2026 - September 24, 2026)WS 362 (September 8, 2026 - October 23, 2026)WS 363 (October 9, 2026 - November 23, 2026)WS 364 (November 2, 2026 - December 17, 2026)WS 365 (December 7, 2026 - January 21, 2027) Add to cart All product details
Proficiency Testing - Organic Carbon, potable water Item no. ERA-557 Unit each Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) WS 353 (December 1, 2025 - January 15, 2026)WS 354 (January 12, 2026 - February 26, 2026)WS 355 (February 9, 2026 - March 26, 2026)WS 356 (March 9, 2026 - April 23, 2026)WS 357 (April 13, 2026 - May 28, 2026)WS 358 (May 11, 2026 - June 25, 2026)WS 359 (June 8, 2026 -July 23, 2026)WS 360 (July 13, 2026 - August 27, 2026)WS 361 (August 10, 2026 - September 24, 2026)WS 362 (September 8, 2026 - October 23, 2026)WS 363 (October 9, 2026 - November 23, 2026)WS 364 (November 2, 2026 - December 17, 2026)WS 365 (December 7, 2026 - January 21, 2027) Add to cart All product details
Proficiency Testing - o-Phosphate Nutrients, potable water Item no. ERA-558 Unit each Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) WS 353 (December 1, 2025 - January 15, 2026)WS 354 (January 12, 2026 - February 26, 2026)WS 355 (February 9, 2026 - March 26, 2026)WS 356 (March 9, 2026 - April 23, 2026)WS 357 (April 13, 2026 - May 28, 2026)WS 358 (May 11, 2026 - June 25, 2026)WS 359 (June 8, 2026 -July 23, 2026)WS 360 (July 13, 2026 - August 27, 2026)WS 361 (August 10, 2026 - September 24, 2026)WS 362 (September 8, 2026 - October 23, 2026)WS 363 (October 9, 2026 - November 23, 2026)WS 364 (November 2, 2026 - December 17, 2026)WS 365 (December 7, 2026 - January 21, 2027) Add to cart All product details
Certified Reference Material - Massachusetts VPH in Water Item no. ERA-566 Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Massachusetts EPH in Water Item no. ERA-567 Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Massachusetts VPH in Soil Item no. ERA-568 Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Massachusetts EPH in Soil - This is a State Specific Product designed for use for the State of Massachusetts. It is not designed to use for other purposes. Item no. ERA-569 Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Total Petroleum Hydrocarbons (TPH) in Soil #1 Item no. ERA-570 Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Total Petroleum Hydrocarbons (TPH) in Soil #2 Item no. ERA-571 Unit each Analytes Select to compare Price on request - + Add to cart All product details
Proficiency Testing - Tin & Titanium, waste water Item no. ERA-573 Unit each Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) 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 - Mercury, waste water Item no. ERA-574 Unit 15 mL Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) 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 - pH, waste water Item no. ERA-577 Unit each Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) 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 - Demand, waste water Item no. ERA-578 Unit each Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) 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