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.
Ammonia - Drinking Water QC, (CRM), Supelco®
Supplier: Merck
Ammonia, Supelco®, Certified reference material, : N/A
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Nutrients C/V Sample 2, (CRM), Supelco®
Supplier: Merck
Nutrients C/V Sample 2, Supelco®, Certified reference material, : N/A
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Nutrients C/V Sample 1, (CRM), Supelco®
Supplier: Merck
Nutrients C/V Sample 1, Supelco®, Certified reference material, : N/A
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TSS in Seawater, (CRM), Supelco®
Supplier: Merck
TSS in Seawater, Supelco®, Certified reference material, : N/A
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Trace Metals (Dissolved) WS, (CRM), Supelco®
Supplier: Merck
Trace Metals (Dissolved) WS, Supelco®, : N/A
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Diquat/Glyphosate/Paraquat - WS, Proficiency Testing Material, Supelco®
Supplier: Merck
Diquat/Glyphosate/Paraquat - WS, Supelco®, Proficiency Testing Material, : N/A
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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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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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Environmental standards, DSJ PCB mixture, CIL
Supplier: PROMOCHEM
DSJ PCB mixture, unlabeled PCBs, CIL, 1 ml in isooctane, : N/A
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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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TPH - sandy loams, (CRM), Supelco®
Supplier: Merck
TPH - Sandy Loam 4, Supelco®, : N/A, Pkg of 100 g
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Anions in Soil, (CRM), Supelco®
Supplier: Merck
Anions in Soil, Supelco®, Certified reference material, : N/A
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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