22207 Results for: "Certified Reference Materials, KLEN"

Pesticides are usually chemical or biological substances that are used to prevent, destroy or mitigate any pests. Pesticides are released into the environemnet in order to eliminate these pests, but residues from these toxic chemicals also end up in the air, water, and even in food.

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VWR®, UV/Visible standards

Supplier: VWR Chemicals

For spectrophotometer calibration according to European Pharmacopoeia (Ph. Eur.)

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VWR®, Colour standard solutions ASTM

Supplier: VWR Chemicals

Ready to use colour solutions that are prepared gravimetrically on a weight/weight basis.

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VWR®, Holmium perchlorate standard solution for wavelength calibration of spectophotometers, Reag. Ph. Eur

Supplier: VWR Chemicals

Standard for spectrophotometer calibration, Holmium perchlorate standard solution, Reag. Ph. Eur, VWR®

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Saccharomyces cerevisiae NCPF 3191 Lenticule® discs, 500-50000 CFU, for microbiology, certified reference material

Supplier: Merck

Certified Reference Microorganisms

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Pseudomonas aeruginosa WDCM 00114 Vitroids™, 15-80 CFU mean value range, for Microbiology, Certified Reference Material

Supplier: Merck

Certified Reference Microorganisms

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VWR®, Density Standards, Certified Reference Materials, Referenced at 25 °C

Supplier: VWR Chemicals

VWR® ISO 17025 / ISO 17034 dual certified density standards are for the verification of instruments used to measure density of materials which are fluid at the desired test temperature.

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Salmonella enteritidis NCTC 6676 Lenticule® discs, 30-120 CFU, for microbiology, certified reference material

Supplier: Merck

Certified Reference Microorganisms

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VWR®, Density Standards, Certified Reference Materials, Referenced at 20 °C

Supplier: VWR Chemicals

VWR® ISO 17025 / ISO 17034 dual certified density standards are for the verification of instruments used to measure density of materials which are fluid at the desired test temperature.

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Pseudomonas aeruginosa WDCM 00026 Vitroids™, 130-300 CFU mean value range, for Microbiology, Certified Reference Material

Supplier: Merck

Certified Reference Microorganisms

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TSS in Seawater, (CRM), Supelco®

Supplier: Merck

TSS in Seawater, Supelco®, Certified reference material, : N/A

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Formaldehyde in Water, (CRM), Supelco®

Supplier: Merck

Formaldehyde in Water, 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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PAHs by HPLC, (CRM), Supelco®

Supplier: Merck

PAHs by HPLC, 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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Residue Sample 2, (CRM), Supelco®

Supplier: Merck

Residue Sample 2, Supelco®, Certified reference material, : N/A

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Staphylococcus aureus NCTC 6571 Lenticule® discs, 30-120 CFU, for microbiology, certified reference material

Supplier: Merck

Certified Reference Microorganisms

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VWR®, Density standards, Certified Reference Materials, referenced at 15 °C

Supplier: VWR Chemicals

VWR® Chemicals ISO 17025/ISO 17034 dual certified-density standards are for the verification of instruments used to measure the density of materials which are fluid at the desired test temperature.