2259 Results for: "Standardy+-+k\\\\\\\\u0159em\\\\u00EDk"

Supplier: Merck

Readybag® gamma-irradiated and pre-weighed granulated media pouches for fast, flexible and easy pathogen testing. Readybag® media pouches speed up and simplify food pathogen testing routines: All media preparation steps are eliminated from workflow. Just add sterile water before incubation. Readybag® series includes Salmonella (Buffered Peptone Water) and Listeria (Half Fraser Broth).

Supplier: Hach

Standard solution for accuracy checks in alkalinity determinations.

Supplier: witeg Labortechnik

Borosilicate glass, clear.

Supplier: Hach

Standard solutions for accuracy checks in manganese determinations.

Supplier: Merck

Designed to reassure the user about the accuracy and the reliability of Spectroquant® Multy and Spectroquant® Move 100 colorimeters.

Supplier: LGC Standards PROMOCHEM

Multi element standards for Au, Ir, Os, Pd, Pt, Re, Rh, Ru at 100 µg/ml in 20% HCl.

Supplier: Hach

Standard solution for accuracy checks in phosphorus determinations.

Supplier: VWR Chemicals

7 components: 100 mg/l each of Chlorides (Cl-), Fluorides (F-), Sulphates (SO42-), Nitrates (NO3-), Nitrites (NO2-), Bromides (Br-), Phosphates (PO43-) in H₂O

Supplier: Cytiva (Formerly Pall Lab)

M-Endo broth is used for the estimation of coliform bacteria in water samples using the membrane filtration technique. It is possible to remove bacteria from fluids by passing them through filters with such small pore size that bacteria are arrested. This filtration technique enables fairly large volumes of water to pass rapidly under pressure, but prevents the passage of any bacteria present. These nutrients are retained on the surface of the membrane which is then brought into contact with suitable liquid nutrients. These diffuse upwards through the pores thereby inducing the organisms to grow as surface colonies which can be counted.

Supplier: Merck

Selective medium for the detection of Enterobacter sakazakii in milk powder and powdered infant formula. The base in Chromocult ® Enterobacter sakazakii agar allows good growth and strong colour formation of E. sakazakii colonies. The addition of inhibitors and the incubation temperature of 44 °C largely reduce the growth of the majority of gram-positive and gram-negative accompanying flora. E. sakazakii  is ß-D-glucosidase positive and grows as blue-green colonies on this medium. Incubation: 24 ±2 hours at 44 ±1 °C. Incubation temperature has a strong influence on sensitivity and selectivity of this method. Temperatures higher than 45 °C will inhibit the growth of E.sakazakii. Temperatures below 43 °C will reduce inhibition of accompanying bacteria.

Supplier: VWR Chemicals

28 elements 1 mg/L: Al, Ag, As, B, Ba, Be, Bi, Ca, Cd, Co, Cr, Cu, Fe, K, Li, Mg, Mn, Mo, Na, Ni, Pb, Sb, Se, Sr, Ti, Tl, V, Zn.

Supplier: Hach

For accuracy checks in formaldehyde determination.

Supplier: Hach

Standard solutions for accuracy checks in silica determinations.

Supplier: Hach

Standard solution for accuracy checks in cobalt determinations.

Supplier: Hach

Standard solutions for accuracy checks in magnesium determinations. HNO₃ matrix.

Supplier: Thermo Fisher Scientific

This LabPak™ comes with all the necessary standard concentrates needed for the day to day operations to complete the EPA established CLP Protocol requirements. Minimal mixing and dilution of the standard concentrates make it easy by saving you time and money in preparing all the necessary CLP Protocol Standards.

Supplier: MICRONOVA

Universal electropolished stainless steel handles with a quick disconnect connection that works with the entire range of Micronova adapters, tools and mop heads for simplified and versatile cleaning.

Supplier: VWR Chemicals

This certified reference material is produced using a high purity starting material, acid from sub-boiling and 18 MOhm deionized water and filtered through a 0.2 micron filter.

Supplier: VWR Chemicals

KCl 0,001 mol/L, VWR®, 147 µS/cm, Reference temperature: 25 °C

Supplier: VWR Chemicals

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

Supplier: Hach

Standard solutions for accuracy checks in nitrate nitrogen determinations and also for meter calibrations/standardisation.

Supplier: Hach

Hardness standard solution, 0,50 mg/l as CaCO₃ traceable to NIST.

Supplier: Hach

For accuracy checks in phosphate (phosphorus) determinations

Supplier: Thermo Fisher Scientific

ART® SoftFit-L™ pipette tips seal when exposed to potential contaminants and are designed for use with the Rainin® LTS LiteTouch pipettes.

Supplier: VWR Chemicals

These standards are ideal to use as control standards for COD measurements to verify that correct analysis for COD has taken place.

Supplier: VWR Chemicals

These products can be used as calibration standards for density measurements by pycnometric, vibrational or hydrometer-based techniques.

Supplier: YSI ENVIRONMENTAL

Conductivity standard, 50 000 µS/cm

Supplier: KARTELL

PP, transparent.

Supplier: witeg Labortechnik

Borosilicate glass 3.3.

Supplier: VWR Chemicals

These products can be used as calibration standards for density measurements by pycnometric, vibrational or hydrometer-based techniques.