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Key Documents

HARD1000

Supelco

Hardness, Calcium 1000 mg/L Calibration Standard

certified reference material

Synonym(s):

Calcium Hardness Standard

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500 ML
€150.00

€150.00


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500 ML
€150.00

About This Item

UNSPSC Code:
41116107
NACRES:
NA.24

€150.00


In StockDetails


To order products, please contact your local dealer.

grade

certified reference material

CofA

current certificate can be downloaded

manufacturer/tradename

RTC HARD1000-100

concentration

in H2O

application(s)

environmental

format

single component solution

storage temp.

2-8°C

General description

This Certified Reference Material (CRM) is produced and certified in accordance with ISO 17034 and ISO/IEC 17025. All information regarding the use of this CRM can be found on the certificate of analysis.

Other Notes

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

Storage Class Code

10 - Combustible liquids

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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Certificates of Analysis (COA)

Lot/Batch Number

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Questions

  1. What are the different purposes for the two standards, HARD1000 – LRAC5534 and THRD1000 – LRAC8406, especially for performing hardness by titration at a concentration of 50 mg/L? There is confusion regarding the different names and the Raw Material Lot numbers that seem to be related to the MKBN6366V lot number.

    1 answer
    1. These are very similar products. HARD1000 was developed based on EPA sampling requirements at the time of the initial design. THRD1000, on the other hand, was created at a later time and was classified based on chemistry and stability.

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