QuiKResponse - Sulfide, waste water (WasteWatR TM) Item no. ERA-071QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
Proficiency Testing - Chromium on Filter Paper Item no. ERA-1031 Unit each Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) 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 - Volatiles on Sorbent Item no. ERA-1101 Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Semivolatiles on Polyurethane foam (Pair) Item no. ERA-1110 Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Organochlorine Pesticides on Polyurethane foam Item no. ERA-1111 Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - PCBs on Polyurethane foam Item no. ERA-1112 Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - PAHs on Polyurethane foam Item no. ERA-1113 Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Aldehydes & Ketones on Sorbent Item no. ERA-1114 Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Metals on Filter Paper Item no. ERA-1125 Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Mercury on Filter Paper Item no. ERA-1127QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Lead on Filter Paper Item no. ERA-1129QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Chromium on Filter Paper Item no. ERA-1131QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Hexavalent Chromium in Impinger Solution Item no. ERA-1132QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Fluoride in Impinger Solution Item no. ERA-1141QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Sulfuric Acid & Sulfur Dioxide in Impinger Solution Item no. ERA-1144QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Ammonia in Impinger Solution Item no. ERA-1145 Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Ammonia in Impinger Solution Item no. ERA-1145QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Particulate Matter on Filter Paper Item no. ERA-1150 Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Particulate Matter on Filter Paper Item no. ERA-1150QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Particulate Matter in Impinger Solution Item no. ERA-1151 Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Particulate Matter in Impinger Solution Item no. ERA-1151QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Common Inorganics, effluent (synthetic waste water matrix) Item no. ERA-1249 Unit each Analytes Select to compare Price on request - + Add to cart All product details
Proficiency Testing - Ammonia as N Item no. ERA-1319 Unit each Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) WS 360 (July 13, 2026 - August 27, 2028) Add to cart All product details
Certified Reference Material - Common Inorganics (Hard Water), clean water (synthetic drinking water matrix) Item no. ERA-1346 Unit each 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 - 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
Certified Reference Material - Quality Control Product -Ammonia as N Item no. ERA-1359 Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Ammonia as N Item no. ERA-1359QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
Proficiency Testing - Perchlorate Item no. ERA-1500 Unit each Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) 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 - Perchlorate Item no. ERA-1501 Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Perchlorate Item no. ERA-1501QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Metals in sewage sludge (Sewage SludG TM), priority pollutant (PriorityPollutnT TM) Item no. ERA-160 Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Metals in sewage sludge (Sewage SludG TM), priority pollutant (PriorityPollutnT TM) Item no. ERA-160QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
Proficiency Testing - Oxygen, dissolved in water Item no. ERA-212 Unit each Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) 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 - Oxygen, dissolved in water Item no. ERA-213 Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Oxygen, dissolved in water Item no. ERA-213QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
Proficiency Testing - Solids, WP, waste water Item no. ERA-241 Unit each Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) 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 - Sulfite Item no. ERA-244 Unit each Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) 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 - Glycols in Water Item no. ERA-271 Unit each Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) WP 378 (July 20, 2026 - September 3, 2026)WP 381 (October 16, 2026 - November 30, 2026) Add to cart All product details
Proficiency Testing - 1,4-Dioxane Item no. ERA-272 Unit each Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) WS 360 (July 13, 2026 - August 27, 2026)WS 366 (January 11, 2027 - February 25, 2027)WS 372 (July 12, 2027 - August 26, 2027) Add to cart All product details
Certified Reference Material - Demand QC plus QC Standard Item no. ERA-4013 Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Glycols in Water Item no. ERA-401QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
Proficiency Testing - Solids, Concentrate, waste water Item no. ERA-4030 Unit each Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) 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
Certified Reference Material - Solids, Concentrate, waste water (WasteWatR TM) Item no. ERA-4032 Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Solids, Concentrate, waste water (WasteWatR TM) Item no. ERA-4032QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
Certified Reference Material - Minerals QC plus QC Standard Item no. ERA-4053 Unit each Analytes Select to compare Price on request - + Add to cart All product details
Proficiency Testing - Oil & Grease Concentrate, waste water Item no. ERA-4120 Unit each Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) 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
Certified Reference Material - Oil & Grease Concentrate, waste water (WasteWatR TM) Item no. ERA-4122 Unit each Analytes Select to compare Price on request - + Add to cart All product details
QuiKResponse - Oil & Grease Concentrate, waste water (WasteWatR TM) Item no. ERA-4122QR Unit each Analytes Select to compare Price on request - + Add to cart All product details
Proficiency Testing - Uranium, PT Item no. ERA-4400 Unit each Analytes Select to compare Price on request - + Participation round: Round ID (Opens - Closes) WP 378 (July 20, 2026 - September 3, 2026)WP 381 (October 16, 2026 - November 30, 2026) Add to cart All product details