Proficiency Testing - Perchlorate Item no. ERA-1500 Unit 15 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 - 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 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
Certified Reference Material - Solids, Concentrate, potable water (PotableWatR TM) Item no. ERA-5152 Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Solids, Concentrate, potable water (PotableWatR TM) Item no. ERA-5152QR 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 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
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
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 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
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
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 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 - pH, potable water Item no. ERA-552 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 - Hardness, potable water Item no. ERA-555 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 - Cyanide, potable water Item no. ERA-556 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 - Metals, potable water Item no. ERA-590 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 - Inorganics, potable water Item no. ERA-591 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 - Turbidity, potable water Item no. ERA-592 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 - Nitrite, potable water Item no. ERA-594 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
Certified Reference Material - Vanadium, potable water (PotableWatR TM) Item no. ERA-660 Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - UV 254 Absorbance, potable water (PotableWatR TM) Item no. ERA-662 Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Dioxin, potable water (PotableWatR TM) Item no. ERA-663 Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Mercury, potable water (PotableWatR TM) Item no. ERA-666QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Organic Carbon, potable water (PotableWatR TM) Item no. ERA-669QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Chloral Hydrate, potable water (PotableWatR TM) Item no. ERA-676QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Unregulated Volatiles, potable water (PotableWatR TM) Item no. ERA-683 Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Unregulated Volatiles, potable water (PotableWatR TM) Item no. ERA-683QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Haloacetic Acids (HAA), potable water (PotableWatR TM) Item no. ERA-684QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Semivolatiles #1, potable water (PotableWatR TM) Item no. ERA-690 Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Semivolatiles #2 Herbicides potable water (PotableWatR TM) Item no. ERA-691 Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Hardness, potable water (PotableWatR TM) Item no. ERA-693 Unit 250 mL Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Hardness, potable water (PotableWatR TM) Item no. ERA-693QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Nitrite, potable water (PotableWatR TM) Item no. ERA-695 Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Metals, potable water (PotableWatR TM) Item no. ERA-697 Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Metals, potable water (PotableWatR TM) Item no. ERA-697QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Inorganics, potable water (PotableWatR TM) Item no. ERA-698 Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Turbidity, potable water (PotableWatR TM) Item no. ERA-699 Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Turbidity, potable water (PotableWatR TM) Item no. ERA-699QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Halomethanes (THMs), potable water (PotableWatR TM) Item no. ERA-702 Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Halomethanes (THMs), potable water (PotableWatR TM) Item no. ERA-702QR 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 - Chlordane, potable water (PotableWatR TM) Item no. ERA-705QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - EDB/DBCP/TCP, potable water (PotableWatR TM) Item no. ERA-706QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Carbamate/Carbamoxyloxime Pesticides, potable water (PotableWatR TM) Item no. ERA-707QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - PCBs as Decachlorobiphenyl, potable water (PotableWatR TM) Item no. ERA-708QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Pesticides, potable water (PotableWatR TM) Item no. ERA-709QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - pH, potable water (PotableWatR TM) Item no. ERA-779 Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Surfactants-MBAS, potable water (PotableWatR TM) Item no. ERA-784 Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Silica, potable water (PotableWatR TM) Item no. ERA-785 Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Gasoline Additives, potable water (PotableWatR TM) Item no. ERA-909 Unit each Analytes Select to compare Price on request - + Add to cart All product details