Top Crm Manufacturer –  Certified Reference Material  – Shandong Institute of Metallurgical Science

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Top Crm Manufacturer – Certified Reference Material – Shandong Institute of Metallurgical Science

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Top Crm Manufacturer – Certified Reference Material – Shandong Institute of Metallurgical Science Detail:

Table 1. Certified Values for ZBK 306 (Mass Fraction %)

Number

Elements

TFe

FeO

SiO2

Al2O3

CaO

MgO

ZBK 306

Certified Values

65.66

0.54

1.92

1.64

0.056

0.102

Uncertainty

0.17

0.06

0.04

0.04

0.006

0.008

Number

Elements

S

P

Mn

Ti

K2O

Na2O

ZBK 306

Certified Values

0.022

0.060

0.135

0.048

0.018

0.007

Uncertainty

0.001

0.002

0.003

0.002

0.002

0.002

Table 2. Analysis methods

Composition

Method

TFe

Titanium(III) chloride reduction potassium dichromate titration method

FeO

Potassium dichromate titration methodThe potentiometric titrimetric method

SiO2

Perchloric acid dehydration gravimetric methodThe silicomolybdic blue spectrophotometric methodICP-AES

Al2O3

Complexometric titration methodThe chrome azurol S photometric methodICP-AES

CaO

ICP-AESAAS

MgO

ICP-AESAAS

S

Barium sulfate gravimetric methodThe eombustion iodometric method for the determination of sulfur content

P

Bismuth phosphomolybdate blue spectrophotometric methodICP-AES

Mn

Potassium periodate spectrophotometric methodICP-AESAAS

Ti

Diantipyryl methane photometric methodICP-AES

K2O

ICP-AES AAS

Na2O

ICP-AES AAS

Expiration of certification: The certification of this CRM is valid until December 1, 2028.

Table 3. Methods for homogeneity testing

Composition

Analysis methods

Minimum sample (g)

TFe

Titanium(III) chloride reduction potassium dichromate titration method

0.2

FeO

Potassium dichromate titration method

0.2

SiO2, Al2O3, CaO, MgO

ICP-AES

0.1

Mn, Ti

ICP-AES

0.2

P, K2O, Na2O

ICP-AES

0.5

S

The eombustion iodometric method for the determination of sulfur content

0.5

The certified reference material is packed in glass bottles with plastic covers. The net weight is 70 g each. It is suggested to keep dryness when stored. The certified reference material should be dried at 105℃ for 1 hour before use, then it should be taken out and cooled to room temperature.


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Top Crm Manufacturer –  Certified Reference Material  – Shandong Institute of Metallurgical Science detail pictures

Top Crm Manufacturer –  Certified Reference Material  – Shandong Institute of Metallurgical Science detail pictures


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We will make just about every exertion for being excellent and perfect, and speed up our actions for standing during the rank of worldwide top-grade and high-tech enterprises for Top Crm Manufacturer – Certified Reference Material – Shandong Institute of Metallurgical Science , The product will supply to all over the world, such as: Slovenia, Korea, Algeria, Our company promises: reasonable prices, short production time and satisfactory after-sales service, we also welcome you to visit our factory at any time you want. Wish we have a pleasant and long terms business together!!!
  • A nice supplier in this industry, after a detail and careful discussion, we reached a consensus agreement. Hope that we cooperate smoothly.
    5 Stars By Judy from Frankfurt - 2017.09.28 18:29
    This manufacturers not only respected our choice and requirements, but also gave us a lot of good suggestions, ultimately, we successfully completed the procurement tasks.
    5 Stars By Frank from Brazil - 2017.06.19 13:51
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