25.0 mg/L C from NIST KHP - 40 mL Item no. ERA-13000 Unit 40 mL Analytes Select to compare Price on request - + Add to cart All product details
30.0 mg/L C from NIST KHP - 40 mL Item no. ERA-13210 Unit 40 mL Analytes Select to compare Price on request - + Add to cart All product details
50.0 mg/L C from NIST KHP - 40 mL Item no. ERA-13225 Unit 40 mL Analytes Select to compare Price on request - + Add to cart All product details
50.0 mg/L C from NIST KHP - 125 mL Item no. ERA-13226 Unit 125 mL Analytes Select to compare Price on request - + Add to cart All product details
50.0 mg/L C from NIST KHP - 250 mL Item no. ERA-13228 Unit 250 mL Analytes Select to compare Price on request - + Add to cart All product details
50.0 mg/L C from NIST KHP - 500 mL Item no. ERA-13230 Unit 500 mL Analytes Select to compare Price on request - + Add to cart All product details
100 mg/L C from NIST KHP - 40 mL Item no. ERA-13275 Unit 40 mL Analytes Select to compare Price on request - + Add to cart All product details
100 mg/L C from NIST KHP - 125 mL Item no. ERA-13276 Unit 125 mL Analytes Select to compare Price on request - + Add to cart All product details
100 mg/L C from NIST KHP - 250 mL Item no. ERA-13277 Unit 250 mL Analytes Select to compare Price on request - + Add to cart All product details
100 mg/L C from NIST KHP - 500 mL Item no. ERA-13278 Unit 500 mL Analytes Select to compare Price on request - + Add to cart All product details
150 mg/L C from NIST KHP - 250 mL Item no. ERA-13282 Unit 250 mL Analytes Select to compare Price on request - + Add to cart All product details
200 mg/L C from NIST KHP - 250 mL Item no. ERA-13287 Unit 250 mL Analytes Select to compare Price on request - + Add to cart All product details
250 mg/L C from NIST KHP - 40 mL Item no. ERA-13290 Unit 40 mL Analytes Select to compare Price on request - + Add to cart All product details
250 mg/L C from NIST KHP - 250 mL Item no. ERA-13292 Unit 250 mL Analytes Select to compare Price on request - + Add to cart All product details
2.5 mg/L C from NIST KHP - 250 mL Item no. ERA-13335 Unit 250 mL Analytes Select to compare Price on request - + Add to cart All product details
0.05 mg/L C from NIST Sucrose - Anatel 643 Item no. ERA-13350 Unit each Analytes Select to compare Price on request - + Add to cart All product details
25.0 mg/L Inorganic Carbon from NaHCO3 - 125 mL Item no. ERA-16920 Unit 125 mL Analytes Select to compare Price on request - + Add to cart All product details
25.0 mg/L Inorganic Carbon from NaHCO3 - 500 mL Item no. ERA-17000 Unit 500 mL Analytes Select to compare Price on request - + Add to cart All product details
50 mg/L Inorganic Carbon from NaHCO3 - 40 mL Item no. ERA-17130 Unit 40 mL Analytes Select to compare Price on request - + Add to cart All product details
100 mg/L Inorganic Carbon from NaHCO3 - 40 mL Item no. ERA-17150 Unit 40 mL Analytes Select to compare Price on request - + Add to cart All product details
1000 mg/L Inorganic Carbon from NaHCO3 - 250 mL Item no. ERA-17154 Unit 250 mL Analytes Select to compare Price on request - + Add to cart All product details
100 mg/L Inorganic Carbon from NaHCO3 - 500 mL Item no. ERA-17160 Unit 500 mL Analytes Select to compare Price on request - + Add to cart All product details
Rss-0.500 mg/L C from µSP Benzoqui- PAT700 Item no. ERA-17420 Unit 60 mL Analytes Select to compare Price on request - + Add to cart All product details
USP System Suitability Set - Sievers 500RL - 40 mL Item no. ERA-17999 Unit Set Analytes Select to compare Price on request - + Add to cart All product details
JP System Suitability Set - 40 mL Item no. ERA-18000J Unit Set Analytes Select to compare Price on request - + Add to cart All product details
Robustness Verification Set - 40 mL Item no. ERA-18000R Unit Set Analytes Select to compare Price on request - + Add to cart All product details
Rw- Reagent Water USP - 40 mL Item no. ERA-18001 Unit 40 mL Analytes Select to compare Price on request - + Add to cart All product details
JP Reagent Water (Rw) - 40 mL Item no. ERA-18001J Unit 40 mL Analytes Select to compare Price on request - + Add to cart All product details
Rs-0.500 mg/L C from USP Sucrose RS - 40 mL Item no. ERA-18002 Unit 40 mL Analytes Select to compare Price on request - + Add to cart All product details
Rss-0.500 mg/L C from µSP Benzoquinone - 40 mL Item no. ERA-18003 Unit 40 mL Analytes Select to compare Price on request - + Add to cart All product details
µSP System Suitability Set, 40 mL - HCl Preserved Item no. ERA-18004H Unit Set Analytes Select to compare Price on request - + Add to cart All product details
0.5 mg/L C SDBS Rss - 60 mL Item no. ERA-18038J Unit 60 mL Analytes Select to compare Price on request - + Add to cart All product details
USP System Suitability Set - 500 mL - Anatel Item no. ERA-18150 Unit Set Analytes Select to compare Price on request - + Add to cart All product details
LL System Suitability Rs - 500 mL Item no. ERA-18154 Unit 500 mL Analytes Select to compare Price on request - + Add to cart All product details
LL System Suitability Rss - 500 mL Item no. ERA-18155 Unit 500 mL Analytes Select to compare Price on request - + 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
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 - 1248 Low Item no. ERA-496 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
Proficiency Testing - Solids, Concentrate, WS, potable water Item no. ERA-5150 Unit each Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) 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
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 - Organic Carbon, potable water Item no. ERA-557 Unit each Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) 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 - 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 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 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
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 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 - Demand, waste water Item no. ERA-578 Unit each Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) 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 - Complex Nutrients, waste water Item no. ERA-579 Unit each Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) 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