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Environmental Testing Standards

Reference and calibration standards for environmental testing protocols; includes water, wastewater, EPA, TOC, DOD and other laboratory and environmental chemical standards.
EPA Methods Standards (1,082)
TOC Standards (337)
Contract Laboratory Program Standards (140)
Wastewater Standards (100)
Drinking Water Standards (95)
Carbon Oxygen Demand Standards (74)
Environmental Chemical Standards (61)

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1,366 – 1,380 of 1,787 results
1,366

LA MAR KA CHEMICAL COMPANY TOC STANDARD 5 PPM-KHP 8OZ
SDP

NC2593705 TOC STANDARD 5 PPM-KHP 8OZ

ENCOMPASS_PREFERRED
1,367

Agilent Technologies PREC.ACRCY.RECVRY-ACETN-100ML

NC3734193 PREC.ACRCY.RECVRY-ACETN-100ML

ENCOMPASS
1,368

Crescent Chemical Co Inc DICYCLOPENTADIENE SOLN 1ML
SDP

Dicyclopentadiene Single Component Calibration Standard in Methanol CAS 77-33-6 Size - 1mL Catalog Number - 3798M.10

ENCOMPASS_PREFERRED
1,369

MERIT PHARMACEUTICAL

NC3960749 CRYOSERV 50ML DMSO CRYO PRESER

ENCOMPASS
1,370

Medchemexpress LLC Oxyfluorfen | 42874-03-3 | 99.7% | 500 MG
SDP

Oxyfluorfen is a diphenyl ether herbicide supplied as a 500 mg research-grade reagent. It functions as a protoporphyrinogen oxidase (PPO) inhibitor and is intended for laboratory research use only; not for human or therapeutic applications.

  • High purity (99.7%) suitable for analytical and research use.
  • Supplied as a 500 mg vial for small-scale studies.
  • Chemical formula C15H11ClF3NO4; molecular weight 361.70 g/mol.
  • Acts as a PPO inhibitor useful in plant physiology and mechanism studies.
  • For research use only; not for human consumption or therapeutic use.

ENCOMPASS_PREFERRED
1,371

Agilent Technologies PURGEABLE AROMATICS MIX 1ML

PURGEABLE AROMATICS MIX 1ML ..

ENCOMPASS
1,372

Crescent Chemical Co Inc MALATHION SOLN 1ML
SDP

Malathion Single Component Calibration Standard in Methanol CAS 121-75-5 Size - 1mL Catalog Number - 7717M.10

ENCOMPASS_PREFERRED
1,373

Crescent Chemical Co Inc METHYLBROMODICHLOROACETATE 1ML
SDP

Methyl bromodichloroacetate Single Component Calibration Standard in Methyl tert.-butyl ether CAS 20428-76-6 Size - 1mL Catalog Number - 3924MT

ENCOMPASS_PREFERRED
1,374

Crescent Chemical Co Inc METHYL BROMOCHLOROACETATE 1ML
SDP

Methyl bromochloroacetate Single Component Calibration Standard in Methyl tert.-butyl ether CAS 20428-74-4 Size - 1mL Catalog Number - 3922MT

ENCOMPASS_PREFERRED
1,375

Hach Company COD Standard Solution, 1000 mg/L as COD (NIST), 200 mL

For accuracy checks in Chemical Oxygen Demand determinations. 200 mL bottle

ENCOMPASS
1,376

Hach Company Wastewater Effluent Inorganics Quality Control Standard, 500 mL

Wastewater Effluent Inorganics Quality Control Standard. Ready to use; no dilutions required. Mixed standard contains: Ammonia Nitrogen: 2 mg/L NH₃-N, Nitrate Nitrogen: 4 mg/L NO₃--N, COD: 25 mg/L, Phosphate: 2 mg/L PO43-. Sulfate: 50 mg/L SO₄2-. TOC: 8 mg/L. 500 mL Bottle

ENCOMPASS
1,377

Hach Company Titration Application Pack, Food & Beverage: pH, Total Acidity & SO₂ in wine

Application Pack for the determination of pH, Total Acidity and Free & Total SO2 in wine. Suited for TitraLab AT1000 Series, Automatic Titrator Model AT1222.

ENCOMPASS
1,378

Chem Service Inc 1ML AROCLOR 1016
SDP

This item has a minimum order quantity of 3 per supplier requirements

ENCOMPASS_PREFERRED
1,379

eMolecules​ ChemScene / 2-(2-(Methoxycarbonyl)phenoxy)acetic acid / 100mg / 714102867 / CS-0459963 / 0.000 / 113496-10-9 / MFCD24389675 / 210.185 / C10H10O5

ChemScene / 2-(2-(Methoxycarbonyl)phenoxy)acetic acid / 100mg / 714102867 / CS-0459963 / 0.000 / 113496-10-9 / MFCD24389675 / 210.185 / C10H10O5

ENCOMPASS_PREFERRED
1,380

Crescent Chemical Co Inc MALATHION 100 MG
SDP

Malathion Insecticide (WS) CAS 121-75-5 Molecular Weight - 330.358 Storage - +5°C Catalog Num - DRE-C14710000 pesticide

ENCOMPASS_PREFERRED