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Merck
CN

CCW4250

Buffered Peptone Water (ISO 6579) in tubes

Dilution and non-selective pre-enrichment liquid medium according to ISO standards, suitable for microbiology

Synonym(s):

BPW, BPW (ISO 6579), Buffered Peptone Solution, Peptone Water (buffered), Peptone Water, buffered, Peptone Water, phosphate-buffered, Tryptone Phosphate Water

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About This Item

NACRES:
NA.74
UNSPSC Code:
41106200

Key Documents

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agency

ISO 11133, ISO 6579, ISO 6887

form

liquid

shelf life

limited shelf life, expiry date on the label

feature

ready-to-use

composition

casein peptone, 10.0 g/L , disodium phosphate (anhydrous), 3.5 g/L (Equivalent to 9,0 g of disodium
hydrogen phosphate dodecahydrate), potassium phosphate, 1.5 g/L , sodium chloride, 5.0 g/L

packaging

box of 20 tubes

parameter

9 mL filling volume

tube volume

16 mL

color

yellow

pH

7±0.2 (25 °C)

Quality Level

200

application(s)

food and beverages, microbiology

storage temp.

15-25°C

General description

This formulation of Buffered Peptone Water has the advantages of the two classical diluents used for food samples: it has the revitalizing property of the peptone water and the pH change absorbing capacity of the phosphate buffer. The composition of this diluent is made according to the specification of ISO Standard 6579 for the detection of Salmonella in foods and other ISO Standards (6887 and 11133).

Application

Buffered Peptone Water is used as a dilution and non-selective pre-enrichment liquid medium. It is suitable for the preliminary non-selective enrichment of bacteria, particularly pathogenic Enterobacteriaceae, from food and animal feed, water, and other materials.

Other Notes

  • 1 box with 20 tubes
  • 16x113 mm glass tubes
  • Ink labeled and metallic cap
According to internal regulations or methodologies of each laboratory, temperature, and incubation time can vary.

Storage Class

12 - Non Combustible Liquids

wgk

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

Regulatory Information

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Certificates of Analysis (COA)

Lot/Batch Number
117364

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