TT-OI Analytical TOC/IC Validation Challenge Item no. ERA-12402 Unit each Analytes Select to compare Price on request - + Add to cart All product details
5.00 mg/L C from NIST KHP - 250 mL Item no. ERA-12420 Unit 250 mL Analytes Select to compare Price on request - + Add to cart All product details
Conductivity Solution Kit for TOC600 - 125 mL, CRM Item no. ERA-42601 Unit Kit Analytes Select to compare Price on request - + Add to cart All product details
TOC Calibration Blank - Anatel 643, CRM Item no. ERA-43300 Unit 60 mL Analytes Select to compare Price on request - + Add to cart All product details
0.750 mg/L C from NIST Sucrose - Anatel 643, CRM Item no. ERA-43600 Unit 60 mL Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Volatile Aromatics Item no. ERA-4452 Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Volatile Aromatics Item no. ERA-4452QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
Proficiency Testing - 1,4-Dioxane Item no. ERA-461 Unit 2 mL (ampoule) Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) SOIL 133 (January 26, 2026 - March 12, 2026)SOIL 135 (July 27, 2026 - September 10, 2026)SOIL 137 (January 25, 2027 - March 11, 2027)SOIL 139 (July 26, 2027 - September 9, 2027) Add to cart All product details
Proficiency Testing - Organochlorine Pesticides in Soil, priority pollutant Item no. ERA-468 Unit each Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) SOIL 133 (January 26, 2026 - March 12, 2026)SOIL 134 (April 27, 2026 - June 11, 2026)SOIL 135 (July 27, 2026 - September 10, 2026)SOIL 136 (October 23, 2026 - December 7, 2026)SOIL 137 (January 25, 2027 - March 11, 2027)SOIL 138 (April 26, 2027 - June 10, 2027)SOIL 139 (July 26, 2027 - September 9, 2027)SOIL 140 (October 22, 2027 - December 6, 2027) Add to cart All product details
Proficiency Testing - Texas Low-Level Fuels (TPH) in Water Item no. ERA-476 Unit each Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) 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 - Texas High-Level Fuels (TPH) in Water Item no. ERA-477 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 - Texas Low-Level Fuels (TPH) in Soil Item no. ERA-478 Unit each Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) SOIL 133 (January 26, 2026 - March 12, 2026)SOIL 134 (April 27, 2026 - June 11, 2026)SOIL 135 (July 27, 2026 - September 10, 2026)SOIL 136 (October 23, 2026 - December 7, 2026)SOIL 137 (January 25, 2027 - March 11, 2027)SOIL 138 (April 26, 2027 - June 10, 2027)SOIL 139 (July 26, 2027 - September 9, 2027)SOIL 140 (October 22, 2027 - December 6, 2027) Add to cart All product details
0.500 mg/L C USP Benzoquinone - 125 mL, CRM Item no. ERA-48039 Unit Kit Analytes Select to compare Price on request - + Add to cart All product details
Proficiency Testing - Massachusetts EPH in Soil Item no. ERA-484 Unit each Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) SOIL 133 (January 26, 2026 - March 12, 2026)SOIL 134 (April 27, 2026 - June 11, 2026)SOIL 135 (July 27, 2026 - September 10, 2026)SOIL 136 (October 23, 2026 - December 7, 2026)SOIL 137 (January 25, 2027 - March 11, 2027)SOIL 138 (April 26, 2027 - June 10, 2027)SOIL 139 (July 26, 2027 - September 9, 2027)SOIL 140 (October 22, 2027 - December 6, 2027) Add to cart All product details
Anatel A643a - USP System Suitability Set - 60 mL HDPE bottles, CRM Item no. ERA-48400 Unit Set Analytes Select to compare Price on request - + Add to cart All product details
Proficiency Testing - Nitrogen Pesticides, priority pollutant Item no. ERA-487 Unit each Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) 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 - Arizona TPH in Soil Item no. ERA-488 Unit each Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) SOIL 133 (January 26, 2026 - March 12, 2026)SOIL 134 (April 27, 2026 - June 11, 2026)SOIL 135 (July 27, 2026 - September 10, 2026)SOIL 136 (October 23, 2026 - December 7, 2026)SOIL 137 (January 25, 2027 - March 11, 2027)SOIL 138 (April 26, 2027 - June 10, 2027)SOIL 139 (July 26, 2027 - September 9, 2027)SOIL 140 (October 22, 2027 - December 6, 2027) 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
Proficiency Testing - HEM / SGT-HEM, waste water Item no. ERA-489 Unit each Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) 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 - PCBs in Soil - 1242 Low Item no. ERA-490 Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - PCBs in Soil - 1242 High Item no. ERA-491 Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - PCBs in Soil - 1254 Low Item no. ERA-492 Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - PCBs in Soil - 1254 High Item no. ERA-493 Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - PCBs in Soil - 1260 Low Item no. ERA-494 Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - PCBs in Soil - 1260 High Item no. ERA-495 Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - PCBs in Soil - 1248 Low Item no. ERA-496 Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - PCBs in Soil - 1248 High Item no. ERA-497 Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Solids, waste water (WasteWatR TM) Item no. ERA-499 Unit each Analytes Select to compare Price on request - + Add to cart All product details
Proficiency Testing - Lithium, PT Item no. ERA-4990 Unit each Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) WP 373 (February 16, 2026 - April 2, 2026)WP 379 (August 17, 2026 - October 1, 2026)WP 385 (February 15, 2027 - April 1, 2027)WP 391 (August 16, 2027 - September 30, 2027) Add to cart All product details
Certified Reference Material - Lithium Item no. ERA-4992 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
Certified Reference Material - Trace Metals, waste water (WasteWatR TM) Item no. ERA-500 Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Trace Metals, waste water (WasteWatR TM) Item no. ERA-500QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Total Residual Chlorine, waste water (WasteWatR TM) Item no. ERA-501 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 - 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
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
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
QuiKResponse - Inorganic Disinfection 2 Item no. ERA-5262QR 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
QuiKResponse - Sulfite Item no. ERA-534QR Unit 10 mL 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
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