Standard per analisi ambientali
Gli standard di analisi ambientale confermano che gli strumenti di prova rimangono coerenti per il monitoraggio dei livelli di inquinanti. Soluzioni a singolo o multi-elemento possono essere utilizzate per confrontare e verificare le determinazioni della composizione di campioni sconosciuti. Valutando con precisione le minacce presenti nell’atmosfera, nelle fonti idriche o nel suolo, il personale può modificare e migliorare le condizioni per ristabilire l’ambiente necessario alle prestazioni ottimali. Gli standard di analisi ambientale consentono di identificare tutti gli elementi esterni e interni che influenzano la crescita complessiva.
Calibration gases
Supplier: Dräger
Calibration gas with nitrogen background in non refillable cylinder.
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Combustion calibration standard
Supplier: PerkinElmer
Combustion calibration statndard for sulphur analysis, cystine (26,69% S), solid 4 g
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Anionic Surfactant, a-Ten - Test Kit
Supplier: WTW
a-Ten 02552, anionic surfactants cell test - 25 determinations.
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Standard
Supplier: ROTRONIC INSTRUMENTS
Although most relative humidity (RH) probes have excellent long-term stability, it is recommended that their calibration be checked regularly.
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Potassium Standard Solution
Supplier: WTW
Standard solution for accuracy checks in potassium determinations.
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ISE standard solutions
Supplier: WTW
These standard solutions for calibration contain 10 g of the ion to be measured per 10 liters.
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Hydrazine, standard solution, Specpure®, N₂H₄ 100 µg/ml
Supplier: Thermo Fisher Scientific
Hydrazine standard, Specpure®, : N/A, Matrice: 1% CH₃COOH
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Dr. Ehrenstorfer ISO 9377-2 Quality Control Mineral Oil Mixture 455 1000 µg/ml in n-Hexane
Supplier: EHRENSTORFER
Dr. Ehrenstorfer ISO 9377-2 Quality Control Mineral Oil Mixture 455 1000 µg/ml in n-Hexane
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Carbon dioxide standard solutions
Supplier: REAGECON
Standards for M965D carbon dioxide analyser, for soft drinks and brewery applications.
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OEKO-TEX PAH Mixture
Supplier: EHRENSTORFER
Dichloromethane solvent, mixture product format.
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EPA 8270 Internal Standard Mix 4000 µg/ml in Dichloromethane, Dr. Ehrenstorfer
Supplier: EHRENSTORFER
EPA 8270 internal standard mix 4000 µg/ml in dichloromethane, Dr. Ehrenstorfer, Reference standard
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BNA Surrogates Mixture
Supplier: EHRENSTORFER
Stable isotope labelled product type, mixture format, dichloromethane solvent.
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COD standards
Supplier: REAGECON
Ideal for use as control standards to verify that correct analysis for COD has taken place.
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EPA Method 552 Halogenated Acetic Mixture 1000 µg/ml in Methyl tert-butyl ether
Supplier: EHRENSTORFER
EPA method 552 halogenated acetic mixture 1000 µg/ml in methyl tert-butyl ether
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EPA Method 8082A Surrogate Standard
Supplier: EHRENSTORFER
EPA method 8082A surrogate standard mixture 424, Native/Parent, 1000 µg/ml in isooctane
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Catalogo #: 83639.320
Supplier: VWR Chemicals
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Supplier: VWR Chemicals
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Supplier: VWR Collection
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Supplier: VWR Chemicals
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Supplier: VWR Chemicals
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Supplier: Merck
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Supplier: VWR Chemicals
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Supplier: VWR Chemicals