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 339 (October 4, 2024 - November 18, 2024)WS 340 (November 4, 2024 - December 19, 2024)WS 341 (December 2, 2024 - January 16, 2025)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) 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 339 (October 4, 2024 - November 18, 2024)WS 340 (November 4, 2024 - December 19, 2024)WS 341 (December 2, 2024 - January 16, 2025)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) Add to cart All product details
Proficiency Testing - EDB/DBCP/TCP Item no. ERA-562 Unit 2 mL Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) WP 357 (October 11, 2024 - November 25, 2024)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) 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 342 (January 13, 2025 - February 27, 2025)WS 348 (July 7, 2025 - August 21, 2025)WS 354 (January 12, 2026 - February 26, 2026)WS 360 (July 13, 2026 - August 27, 2026) Add to cart All product details
QuiKResponse - Hexavalent Chromium, potable water (PotableWatR TM) Item no. ERA-658QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Vanadium, potable water (PotableWatR TM) Item no. ERA-660QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Color Item no. ERA-661 Unit 125 mL Analytes Select to compare Price on request - + 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
QuiKResponse - Color, Water Supply Item no. ERA-661CQR Unit 30 mL Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Colour Item no. ERA-661QR Unit 125 mL Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - UV 254 Absorbance, potable water (PotableWatR TM) Item no. ERA-662QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Dioxin, potable water (PotableWatR TM) Item no. ERA-663QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - o-Phosphate Nutrients, potable water (PotableWatR TM) Item no. ERA-667QR Unit each Analytes Select to compare Price on request - + 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 - Quality Control Product -Low-Level 1,2,3-TCP Item no. ERA-682 Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Low-Level 1,2,3-TCP Item no. ERA-682QR 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 - Semivolatiles #2 Herbicides potable water (PotableWatR TM) Item no. ERA-691QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Chlorinated Acid Herbicides, potable water (PotableWatR TM) Item no. ERA-704 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 - Carbamate/Carbamoxyloxime Pesticides, potable water (PotableWatR TM) Item no. ERA-707 Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - pH, potable water (PotableWatR TM) Item no. ERA-779QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Surfactants-MBAS, potable water (PotableWatR TM) Item no. ERA-784QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
Proficiency Testing - Unregulated Volatiles, potable water Item no. ERA-841 Unit each Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) WS 339 (October 4, 2024 - November 18, 2024)WS 340 (November 4, 2024 - December 19, 2024)WS 341 (December 2, 2024 - January 16, 2025)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) Add to cart All product details
Proficiency Testing - Halomethanes (THMs), potable water Item no. ERA-842 Unit each Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) WS 339 (October 4, 2024 - November 18, 2024)WS 340 (November 4, 2024 - December 19, 2024)WS 341 (December 2, 2024 - January 16, 2025)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) Add to cart All product details
Proficiency Testing - Toxaphene, potable water Item no. ERA-844 Unit each Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) WS 339 (October 4, 2024 - November 18, 2024)WS 340 (November 4, 2024 - December 19, 2024)WS 341 (December 2, 2024 - January 16, 2025)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) Add to cart All product details
Proficiency Testing - Chlordane, potable water Item no. ERA-845 Unit each Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) WS 339 (October 4, 2024 - November 18, 2024)WS 340 (November 4, 2024 - December 19, 2024)WS 341 (December 2, 2024 - January 16, 2025)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) Add to cart All product details
Proficiency Testing - Carbamate/Carbamoxyloxime Pesticides Item no. ERA-846 Unit each Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) WS 339 (October 4, 2024 - November 18, 2024)WS 340 (November 4, 2024 - December 19, 2024)WS 341 (December 2, 2024 - January 16, 2025)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) Add to cart All product details
Proficiency Testing - EDB/DBCP/TCP, potable water Item no. ERA-847 Unit each Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) WS 339 (October 4, 2024 - November 18, 2024)WS 340 (November 4, 2024 - December 19, 2024)WS 341 (December 2, 2024 - January 16, 2025)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) 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 339 (October 4, 2024 - November 18, 2024)WS 340 (November 4, 2024 - December 19, 2024)WS 341 (December 2, 2024 - January 16, 2025)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) Add to cart All product details
Proficiency Testing - Chlorinated Acid Herbicides, potable water Item no. ERA-851 Unit each Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) WS 339 (October 4, 2024 - November 18, 2024)WS 340 (November 4, 2024 - December 19, 2024)WS 341 (December 2, 2024 - January 16, 2025)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) Add to cart All product details
Proficiency Testing - Haloacetic Acids (HAA), potable water Item no. ERA-852 Unit each Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) WS 339 (October 4, 2024 - November 18, 2024)WS 340 (November 4, 2024 - December 19, 2024)WS 341 (December 2, 2024 - January 16, 2025)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) Add to cart All product details
Proficiency Testing - Chloral Hydrate, potable water Item no. ERA-853 Unit each Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) WS 342 (January 13, 2025 - February 27, 2025)WS 348 (July 7, 2025 - August 21, 2025)WS 354 (January 12, 2026 - February 26, 2026)WS 360 (July 13, 2026 - August 27, 2026) Add to cart All product details
Proficiency Testing - Vanadium, potable water Item no. ERA-856 Unit each Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) WS 339 (October 4, 2024 - November 18, 2024)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
Proficiency Testing - Dioxin, potable water Item no. ERA-857 Unit each Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) WS 339 (October 4, 2024 - November 18, 2024)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
Proficiency Testing - Uranium, potable water Item no. ERA-858 Unit each Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) WS 339 (October 4, 2024 - November 18, 2024)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
Proficiency Testing - Color, Water Supply Item no. ERA-859C Unit 30 mL Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) WS 339 (October 4, 2024 - November 18, 2024)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
Proficiency Testing - Perchlorate, potable water Item no. ERA-903 Unit each Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) WS 339 (October 4, 2024 - November 18, 2024)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
Proficiency Testing - UV 254 Absorbance, potable water Item no. ERA-904 Unit each Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) WS 339 (October 4, 2024 - November 18, 2024)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
QuiKResponse - Gasoline Additives, potable water (PotableWatR TM) Item no. ERA-909QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Perchlorate, potable water (PotableWatR TM) Item no. ERA-910 Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Perchlorate, potable water (PotableWatR TM) Item no. ERA-910QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Uranium, potable water (PotableWatR TM) Item no. ERA-930 Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Uranium, potable water (PotableWatR TM) Item no. ERA-930QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
Proficiency Testing - Organphosphorus Pesticides (OPP) Item no. ERA-954 Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Corrosivity, potable water (PotableWatR TM) Item no. ERA-980 Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Corrosivity, potable water (PotableWatR TM) Item no. ERA-980QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Cyanide, potable water (PotableWatR TM) Item no. ERA-983 Unit 15 mL Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Cyanide, potable water (PotableWatR TM) Item no. ERA-983QR Unit each Analytes Select to compare Price on request - + Add to cart All product details