Proficiency Testing - Metals in Impinger Solution Item no. ERA-1026 Unit each Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) AE 071 (January 31, 2025 - March 17, 2025)AE 072 (April 28, 2025 - June 12, 2025)AE 073 (July 28, 2025 - September 11, 2025)AE 074 (October 24, 2025 - December 8, 2025)AE 075 (January 30, 2026 - March 16, 2026)AE 076 (May 1, 2026 - June 15, 2026)AE 077 (July 31, 2026 - September 14, 2026)AE 078 (October 30, 2026 - December 14, 2026)AE 079 (January 29, 2027 - March 15, 2027)AE 080 (April 30, 2027 - June 14, 2027)AE 081 (July 30, 2027 - September 13, 2027)AE 082 (October 29, 2027 - December 13, 2027) Add to cart All product details
Proficiency Testing - Mercury on Filter Paper Item no. ERA-1027 Unit each Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) AE 071 (January 31, 2025 - March 17, 2025)AE 072 (April 28, 2025 - June 12, 2025)AE 073 (July 28, 2025 - September 11, 2025)AE 074 (October 24, 2025 - December 8, 2025)AE 075 (January 30, 2026 - March 16, 2026)AE 076 (May 1, 2026 - June 15, 2026)AE 077 (July 31, 2026 - September 14, 2026)AE 078 (October 30, 2026 - December 14, 2026)AE 079 (January 29, 2027 - March 15, 2027)AE 080 (April 30, 2027 - June 14, 2027)AE 081 (July 30, 2027 - September 13, 2027)AE 082 (October 29, 2027 - December 13, 2027) Add to cart All product details
Certified Reference Material - Metals in Impinger Solution Item no. ERA-1126 Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Metals in Impinger Solution Item no. ERA-1126QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Mercury, clean water (synthetic drinking water matrix) Item no. ERA-1341 Unit 1 x 15 mL Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Free Cyanide, clean water (synthetic drinking water matrix) Item no. ERA-1345 Unit 15 mL vial Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Common Inorganics (Soft Water), clean water (synthetic drinking water matrix) Item no. ERA-1347 Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Simple Nutrients (Soft Water), clean water (synthetic drinking water matrix) Item no. ERA-1349 Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Demand, clean water (synthetic drinking water matrix) Item no. ERA-1354 Unit each Analytes Select to compare Price on request - + Add to cart All product details
Proficiency Testing - Sulfite Item no. ERA-244 Unit 10 mL Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) WP 360 (January 21, 2025 - March 7, 2025)WP 366 (July 14, 2025 - August 28, 2025)WP 372 (January 20, 2026 - March 6, 2026)WP 378 (July 20, 2026 - September 3, 2026)WP 384 (January 19, 2027 - March 5, 2027)WP 390 (July 19, 2027 - September 2, 2027) Add to cart All product details
Proficiency Testing Total Phenolics (4-AAP) Item no. ERA-273 Unit each Analytes Select to compare Price on request - + Add to cart All product details
Proficiency Testing - Volatile Aromatics Item no. ERA-4450 Unit each Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) WP 360 (January 21, 2025 - March 7, 2025)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 - Volatile Aromatics Item no. ERA-4452 Unit each Analytes Select to compare Price on request - + 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 129 (January 27, 2025 - March 13, 2025)SOIL 130 (April 21, 2025 - June 5, 2025)SOIL 131 (July 21, 2025 - September 4, 2025)SOIL 132 (October 17, 2025 - December 1, 2025)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 - Arizona TPH in Soil Item no. ERA-488 Unit each Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) SOIL 129 (January 27, 2025 - March 13, 2025)SOIL 130 (April 21, 2025 - June 5, 2025)SOIL 131 (July 21, 2025 - September 4, 2025)SOIL 132 (October 17, 2025 - December 1, 2025)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
Certified Reference Material - PAH-GC & GCMS Item no. ERA-4882 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 - Solids, waste water (WasteWatR TM) Item no. ERA-499QR 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
Certified Reference Material - Sulfite Item no. ERA-534 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
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
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 342 (January 13, 2025 - February 27, 2025)WS 343 (February 10, 2025 - March 27, 2025)WS 344 (March 3, 2025 - April 17, 2025)WS 345 (April 7, 2025 - May 22, 2025)WS 346 (May 5, 2025 - June 19, 2025)WS 347 (June 9, 2025 -July 24, 2025)WS 348 (July 7, 2025 - August 21, 2025)WS 349 (August 4, 2025 - September 18, 2025)WS 350 (September 8, 2025 - October 23, 2025)WS 351 (October 3, 2025 - November 17, 2025)WS 352 (October 31, 2025 - December 15, 2025)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 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
QuiKResponse - 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-569QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
Proficiency Testing - Residual Chlorine, potable water Item no. ERA-593 Unit each Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) WS 342 (January 13, 2025 - February 27, 2025)WS 343 (February 10, 2025 - March 27, 2025)WS 344 (March 3, 2025 - April 17, 2025)WS 345 (April 7, 2025 - May 22, 2025)WS 346 (May 5, 2025 - June 19, 2025)WS 347 (June 9, 2025 -July 24, 2025)WS 348 (July 7, 2025 - August 21, 2025)WS 349 (August 4, 2025 - September 18, 2025)WS 350 (September 8, 2025 - October 23, 2025)WS 351 (October 3, 2025 - November 17, 2025)WS 352 (October 31, 2025 - December 15, 2025)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 - Volatiles in Soil, priority pollutant Item no. ERA-623 Unit each Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) SOIL 129 (January 27, 2025 - March 13, 2025)SOIL 130 (April 21, 2025 - June 5, 2025)SOIL 131 (July 21, 2025 - September 4, 2025)SOIL 132 (October 17, 2025 - December 1, 2025)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
Certified Reference Material - Organic Carbon, potable water (PotableWatR TM) Item no. ERA-669 Unit each Analytes Select to compare Price on request - + 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
QuiKResponse - Total Organic Halides (TOX), waste water (WasteWatR TM) Item no. ERA-670QR 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
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
QuiKResponse - Semivolatiles #1, potable water (PotableWatR TM) Item no. ERA-690QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Nitrite, potable water (PotableWatR TM) Item no. ERA-695QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Regulated Volatiles, potable water (PotableWatR TM) Item no. ERA-703QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Chlorinated Acid Herbicides, potable water (PotableWatR TM) Item no. ERA-704QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Base/Neutrals, priority pollutant (PriorityPollutnT TM) Item no. ERA-711 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
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 - Volatiles in Soil, priority pollutant (PriorityPollutnT TM) Item no. ERA-721 Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - PFAS Drinking Water (ISO 17034) Item no. ERA-733 Unit 2mL Flame Sealed Ampule Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - PFAS Drinking Water (ISO 17034) Item no. ERA-733QR Unit 2mL Flame Sealed Ampule Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Arizona TPH in Soil Item no. ERA-798 Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Arizona TPH in Soil Item no. ERA-798QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
Proficiency Testing - Volatiles, priority pollutant Item no. ERA-830 Unit 2 mL Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) WP 359 (December 9, 2024 - January 23, 2025)WP 360 (January 21, 2025 - March 7, 2025)WP 361 (February 17, 2025 - April 3, 2025)WP 362 (March 10, 2025 - April 24, 2025)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 - Low-Level PAHs, priority pollutant Item no. ERA-836 Unit each Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) WP 360 (January 21, 2025 - March 7, 2025)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 - Semivolatiles #1, potable water Item no. ERA-848 Unit each Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) WS 342 (January 13, 2025 - February 27, 2025)WS 343 (February 10, 2025 - March 27, 2025)WS 344 (March 3, 2025 - April 17, 2025)WS 345 (April 7, 2025 - May 22, 2025)WS 346 (May 5, 2025 - June 19, 2025)WS 347 (June 9, 2025 -July 24, 2025)WS 348 (July 7, 2025 - August 21, 2025)WS 349 (August 4, 2025 - September 18, 2025)WS 350 (September 8, 2025 - October 23, 2025)WS 351 (October 3, 2025 - November 17, 2025)WS 352 (October 31, 2025 - December 15, 2025)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 - PFAS Drinking Water, Quarterly (ISO 17034) Item no. ERA-959 Unit 2mL Flame Sealed Ampule Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) WS 342 (January 13, 2025 - February 27, 2025)WS 345 (April 7, 2025 - May 22, 2025)WS 348 (July 7, 2025 - August 21, 2025)WS 351 (October 3, 2025 - November 17, 2025)WS 354 (January 12, 2026 - February 26, 2026)WS 357 (April 13, 2026 - May 28, 2026)WS 360 (July 13, 2026 - August 27, 2026)WS 363 (October 9, 2026 - November 23, 2026)WS 366 (January 11, 2027 - February 25, 2027)WS 369 (April 12, 2027 - May 27, 2027)WS 372 (July 12, 2027 - August 26, 2027)WS 375 (October 8, 2027 - November 22, 2027) Add to cart All product details