0.100 mg/L C from NIST KHP - 250 mL Item no. ERA-11718 Unit 250 mL Analytes Select to compare Price on request - + Add to cart All product details
0.500 mg/L C from NIST KHP - 250 mL Item no. ERA-11735 Unit 250 mL Analytes Select to compare Price on request - + Add to cart All product details
0.500 mg/L C from NIST KHP - 500 mL Item no. ERA-11750 Unit 500 mL Analytes Select to compare Price on request - + Add to cart All product details
4.00 mg/L C from NIST KHP - 125 mL Item no. ERA-12360 Unit 125 mL Analytes Select to compare Price on request - + Add to cart All product details
5.00 mg/L C from NIST KHP - 40 mL Item no. ERA-12400 Unit 40 mL Analytes Select to compare Price on request - + Add to cart All product details
5.00 mg/L C from NIST KHP - 500 mL Item no. ERA-12500 Unit 500 mL Analytes Select to compare Price on request - + Add to cart All product details
5.00 mg/L C from NIST KHP - 1 L Item no. ERA-12600 Unit 1 L Analytes Select to compare Price on request - + Add to cart All product details
pH 4 Item no. ERA-127 Unit 1 pint Analytes Select to compare Price on request - + Add to cart All product details
10.0 mg/L C from NIST KHP - 40 mL Item no. ERA-12700 Unit 40 mL Analytes Select to compare Price on request - + Add to cart All product details
10.0 mg/L C from NIST KHP - 125 mL Item no. ERA-12710 Unit 125 mL Analytes Select to compare Price on request - + Add to cart All product details
10.0 mg/L C from NIST KHP - 250 mL Item no. ERA-12720 Unit 250 mL Analytes Select to compare Price on request - + Add to cart All product details
pH 4 Item no. ERA-128 Unit 6 x 1 pint Analytes Select to compare Price on request - + Add to cart All product details
10.0 mg/L C from NIST KHP - 500 mL Item no. ERA-12800 Unit 500 mL Analytes Select to compare Price on request - + Add to cart All product details
pH 4 Item no. ERA-129 Unit 1 L Analytes Select to compare Price on request - + Add to cart All product details
TT - 20.0 mg/L C from NIST KHP - 125 mL Item no. ERA-12903 Unit 125 mL Analytes Select to compare Price on request - + Add to cart All product details
15.0 mg/L C from NIST KHP - 40 mL Item no. ERA-12940 Unit 40 mL Analytes Select to compare Price on request - + Add to cart All product details
pH 7 Item no. ERA-131 Unit 1 pint 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
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
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
µSP Reagent Water Blank (Rw) for Thornton - 500 mL Item no. ERA-18144 Unit 500 mL Analytes Select to compare Price on request - + Add to cart All product details
Rs - 8.0 mg/L C from µSP Sucrose - 500 mL Item no. ERA-18147 Unit 500 mL Analytes Select to compare Price on request - + Add to cart All product details
0.5 mg/L C SDBS Rss - 500 mL Item no. ERA-18148J Unit 500 mL Analytes Select to compare Price on request - + Add to cart All product details
Thornton 5000 System Suitability Set - 500 mL Item no. ERA-18151 Unit Set Analytes Select to compare Price on request - + Add to cart All product details
JP System Suitability Set - 500 mL Item no. ERA-18151J Unit Set Analytes Select to compare Price on request - + Add to cart All product details
µSP 643 Sterile Water Sys Suit Set - 500 mL Item no. ERA-18152 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
Proficiency Testing - Glycols in Soil Item no. ERA-463 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 - Base/Neutrals & Acids in Soil, priority pollutant Item no. ERA-467 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 - Massachusetts EPH in Water Item no. ERA-482 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 - PAH-GC & GCMS Item no. ERA-4880 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
QuiKResponse - Lithium Item no. ERA-4992QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Simple Nutrients, waste water (WasteWatR TM) Item no. ERA-505QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Hardness, waste water (WasteWatR TM) Item no. ERA-507QR Unit each Analytes Select to compare Price on request - + 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
Certified Reference Material - Nutrients in Soil, priority pollutant (PriorityPollutnT TM) Item no. ERA-542 Unit each Analytes Select to compare Price on request - + 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 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 - Metals in Soil, priority pollutant Item no. ERA-620 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 - Wisconsin Gasoline Range Org (GRO/PVOC) in Water Item no. ERA-649 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 - 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
Certified Reference Material - EDB/DBCP/TCP, potable water (PotableWatR TM) Item no. ERA-706 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 - Volatiles, PriorityPollutnT? Item no. ERA-710QR 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 - Wisconsin Gasoline Range Org (GRO/PVOC) Water Item no. ERA-773 Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Wisconsin Gasoline Range Org (GRO/PVOC) Water Item no. ERA-773QR 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
QuiKResponse - Silica, potable water (PotableWatR TM) Item no. ERA-785QR Unit each Analytes Select to compare Price on request - + Add to cart All product details