Nist Certified Reference Materials Supplier – Reference Material For Ore Detection – Shandong Institute of Metallurgical Science

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Our company promises all buyers of the first-class products and solutions as well as most satisfying post-sale support. We warmly welcome our regular and new shoppers to join us for Bituminous Coal Adalah , Certified Reference Material Adalah , Optical Crm , All prices depend upon the quantity of your respective order; the extra you purchase, the extra economical the rate is. We also offer fantastic OEM provider to numerous famous brands.

Nist Certified Reference Materials Supplier – Reference Material For Ore Detection – Shandong Institute of Metallurgical Science Detail:

The CRM is used for the quality control and calibration of analytical instruments in analysis of Coal. It is also used for the evaluation and verification of accuracy of the analytical methods. The CRM can be used for the transfer of measured value.

New standard coal

Table 1. Certified Values for GBW (E) 110109 (k=2)

Number	Elements	P/%	As*/μg/g	F/μg/g	Cl*/%	Hg*/μg/g
GBW(E)110109	Certified Values	0.0080	22	158	0.051	0.03
GBW(E)110109	Uncertainty	0.0008	3	11	0.005	0.01

Note 1: * Indicates that it is not within the recommended scope for production proficiency of CNAS

Table 2. Analysis methods

Composition	Method
P	Reduced molybdophosphate photometric method ICP-AES
As	HG-ICP-AES HG-AFS
F	Fluorine ion-selective electrode analysis Ion chromatography
Cl	The potentiometric titrimetric method Ion chromatography
Hg	Cold atomic absorption spectrometric method AFS Solid sampling and direct mercury analysis method

Expiration of certification: The certification of this CRM is valid until June 1, 2024.

Table 3. Methods for homogeneity testing

Composition	Analysis methods	Minimum sample (g)
P	ICP-AES	1
As	HG-ICP-AES	1
F	Fluorine ion-selective electrode analysis	0.5
Cl	The potentiometric titrimetric method	0.5
Hg	AFS	0.5

The certified reference material is packed in brown glass bottles with plastic covers. The net weight is 50 g each. It is suggested to keep dryness when stored.

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316 Stainless Steel