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COND25

Conductivity Standard - 25 μmhos/cm

certified reference material

Synonym(s):

25 μmhos/cm Conductivity Calibration Standard

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Size/SKUAvailabilityPrice
500 mL
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CZK 2,020.00

About This Item

NACRES:
NA.24
UNSPSC Code:
41116107

CZK 2,020.00


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grade

certified reference material

Quality Segment

CofA

current certificate can be downloaded

manufacturer/tradename

RTC COND-25-0.500

concentration

in H2O

application(s)

environmental
food and beverages
pharmaceutical
water monitoring

format

single component solution

storage temp.

2-30°C

General description

This ready-to-use certified reference material (CRM) is produced and qualified following ISO 17034 and ISO/IEC 17025. It is manufactured gravimetrically with traceability to SI and higher order standards from National Institute of Standards and Technology (NIST). Its certified value is based on purity determination by mass balance and gravimetrically prepared value. It is delivered in a 500 mL HDPE bottle.

All information regarding metrological traceability, uncertainty, homogeneity and stability is documented in the certificate of analysis (CoA).

Application

Suitable for use in calibration of instruments for conductivity measurements.

Other Notes

Values of analytes vary lot to lot. Some lots may not contain all analytes.

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COND75COND147COND50
application(s)

environmental
food and beverages
pharmaceutical
water monitoring

application(s)

environmental
food and beverages
pharma/biopharma processes
water monitoring

application(s)

environmental
food and beverages
pharma/biopharma processes
water monitoring

application(s)

environmental

format

single component solution

format

single component solution

format

single component solution

format

single component solution

grade

certified reference material

grade

certified reference material

grade

certified reference material

grade

certified reference material

storage temp.

2-30°C

storage temp.

2-30°C

storage temp.

2-30°C

storage temp.

2-30°C

concentration

in H2O

concentration

in H2O

concentration

in H2O

concentration

in H2O

Quality Level

300

Quality Level

100, 300

Quality Level

300

Quality Level

300


Storage Class

10 - Combustible liquids

wgk

nwg

flash_point_f

Not applicable

flash_point_c

Not applicable



Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Questions

  1. when i use this solution, if the temperature value not 25 Celcius,, example the temperature value is 29 celcius, what value will be read?

    1 answer
    1. Conductivity is not measured at different temperatures to create a correction table. Over typical measurement temperatures, the industry standard is a correction factor of 2% per °C. The CRM should be used to calibrate or confirm the conductivity meter, which should read 25 µmhos/cm at 25 °C. If a reading of 25 µmhos/cm is not obtained, the instrument may require adjustment. Alternatively, the standard correction factor or another factor can be used to calculate acceptance criteria at the measurement temperature.

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