You searched for: Standards
Meeting regulations in any industry, standards are essential for periodically checking the accuracy of equipment pieces. By comparing against the known values, output readings detect errors present and inform personnel adjustments are required. Once the settings of the manual or automatic instruments have returned to zero, the reestablished conditions will yield optimal working performance. Calibrating with concentrated standards eliminates the possibility that environmental changes will induce instrumental miscalculation when accuracy matters most.
Trace Metals (Dissolved) - 1, (CRM), Supelco®
Supplier: Merck
Trace Metals (Dissolved) - 1, Supelco®, Certified reference material, : N/A
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TCLP Metals in Soil, (CRM), Supelco®
Supplier: Merck
TCLP Metals in Soil, Supelco®, Certified reference material, : N/A
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Trace Metals 2-WP, (CRM), Supelco®
Supplier: Merck
Trace Metals 2-WP, Supelco®, Certified reference material, : N/A
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Chromium VI in soil, (CRM), Supelco®
Supplier: Merck
Chromium VI in Soil, Supelco®, Certified reference material, : N/A
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Thiocyanate in Water - WP, Proficiency Testing Material, Supelco®
Supplier: Merck
Thiocyanate in Water - WP, Supelco®, Proficiency Testing Material, : N/A
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Residue (Whole-Volume) - WP, (CRM), Supelco®
Supplier: Merck
Residue (Whole-Volume) - WP, Supelco®, Certified reference material, : N/A
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EDB/DBCP - WP (Low Level), (CRM), Supelco®
Supplier: Merck
EDB/DBCP - WP (Low Level), Supelco®, Certified reference material, : N/A
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Dioxin and Furans in Soil - PT, Proficiency Testing Material, Supelco®
Supplier: Merck
Dioxin and Furans in Soil - PT, Supelco®, Proficiency Testing Material, : N/A
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Anions - Loamy sand 1, (CRM), Supelco®
Supplier: Merck
Anions - Loamy Sand 1, Supelco®, Certified reference material, : N/A, Pkg of 50 g
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DDT-Endrin Mix, certified reference material, Supelco®
Supplier: Merck
DDT-Endrin Mix, Supelco®, Certified reference material, 500 mug/mL each component in methanol, : N/A
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Trace Metals 1 in Seawater - Whole Volume, (CRM), Supelco®
Supplier: Merck
Trace Metals 1 in Seawater - Whole Volume, Supelco®, Certified reference material, : N/A
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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, : N/A
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EPA CLP Semi-Volatile calibration mix, certified reference material, Supelco®
Supplier: Merck
EPA CLP Semivolatile Calibration Mix, Supelco®, Certified reference material, 1000 mug/mL each component in dichloromethane : benzene (3:1), : N/A
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STLC metals CA-WET in Soil-PT, proficiency testing material, Supelco®
Supplier: Merck
STLC Metals CA-WET in Soil-PT, Supelco®, Proficiency Testing Material, : N/A
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Simple nutrients in seawater - Whole volume - WP, proficiency testing material, Supelco®
Supplier: Merck
Simple Nutrients in Seawater - Whole Volume - WP, Supelco®, Proficiency Testing Material, : N/A
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EPA 505/525 update pesticides mix A, certified reference material, Supelco®
Supplier: Merck
EPA 505/525 Update Pesticides Mix A, Supelco®, Certified reference material, 500 mug/mL each component in acetone, : N/A
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Polystyrene film - IR transmission wavelength standards, NIST-1921B
Supplier: PROMOCHEM
NIST-1921B, Polystyrene film - IR transmission wavelength
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Antibiotics - IR Identification PT, Proficiency Testing Material, Supelco®
Supplier: Merck
Antibiotics - IR Identification PT, Proficiency Testing Material
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Total Organic Carbon (TOC) PT, Proficiency Testing Material, Supelco®
Supplier: Merck
Total Organic Carbon (TOC) PT, Proficiency Testing Material
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Inland silverside (Menidia beryllina), 48-hr acute, nonrenewal, 25 °C, SSW, Supelco®
Supplier: Merck
Inland silverside (Menidia beryllina), 48-hr Acute, nonrenewal, 25 °C, SSW
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Elemental analysis standards, plastic clay, NIST-98B
Supplier: PROMOCHEM
This standards reference material is intended to use in the determination of constituent elements in clay and material of similar matrix. These powdered clay was air-dried, ball-milled and blended to ensure homogeneity.
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Base/Neutrals 1 - WP, (CRM), Supelco®
Supplier: Merck
Base/Neutrals 1 - WP, Supelco®, Certified reference material, : N/A
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TOC Linearity Set, Supelco®
Supplier: Merck
TOC linearity set, Supelco®, : N/A
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Anions in Soil, (CRM), Supelco®
Supplier: Merck
Anions in Soil, Supelco®, Certified reference material, : N/A
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TPH - sandy loams, (CRM), Supelco®
Supplier: Merck
TPH - Sandy Loam 4, Supelco®, : N/A, Pkg of 100 g
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Pesticides 2 - WP, proficiency testing material, Supelco®
Supplier: Merck
Pesticides 2 - WP, Supelco®, Proficiency Testing Material, 1 mL for dilution to 1L, : N/A
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Dissolved Oxygen in Drinking Water, (CRM), Supelco®
Supplier: Merck
Dissolved Oxygen, Supelco®, Certified reference material, : N/A
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Solvent screen, certified reference material, Supelco®
Supplier: Merck
Solvent Screen, Supelco®, Certified reference material
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VOAS in Soil - Low Level - PT, Proficiency Testing Material, Supelco®
Supplier: Merck
VOAS in Soil - Low Level - PT, Supelco®, Proficiency Testing Material, : N/A
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PAH Mix 3, certified reference material, Supelco®
Supplier: Merck
PAH Mix 3, Supelco®, Certified reference material, in methylene chloride: methanol (1:1) (varied), : N/A