Primary Reference Standard Manufacturers – Reference Material For Environmental Testing – Shandong Institute of Metallurgical Science
Primary Reference Standard Manufacturers – Reference Material For Environmental Testing – Shandong Institute of Metallurgical Science Detail:
Table 1. Certified Values for YSBC 15602-2006 (Mass Fraction %)
|
Number |
Elements |
Ti |
C |
Si |
Mn |
P |
S |
Cr |
|
YSBC 15602-2006 |
Certified Values |
70.02 |
0.057 |
1.47 |
0.106 |
0.0071 |
0.0047 |
0.039 |
|
Uncertainty |
0.17 |
0.003 |
0.03 |
0.004 |
0.0005 |
0.0006 |
0.003 |
|
|
Number |
Elements |
Ni |
Mo |
V |
Cu |
Al |
Fe |
|
|
YSBC 15602-2006 |
Certified Values |
0.29 |
0.028 |
0.011 |
0.037 |
0.30 |
26.57 |
|
|
Uncertainty |
0.02 |
0.003 |
0.002 |
0.003 |
0.02 |
0.13 |
Table 2. Analysis Methods
|
Composition |
Method |
|
Ti |
The Ammonium ferric sulfate titration method |
|
C |
The Infrared absorption method |
|
Si |
ICP-AES Perchloric acid dehydration gravimetric method The silicomolybdic blue spectrophotometric method The Sulphuric acid dehydration gravimetric method |
|
Mn |
Periodate photometric method AAS ICP-AES |
|
P |
Molybdobismuthylphosphoric blue spectrophotometric method Molybdenum blue spectrophotometric method Molybdenum blue photometry for extraction by butyl acetate Extraction of Molybdenum Blue from N-Butyl and Alcohol-Third Chloromethane ICP-AES |
|
S |
The Infrared absorption method |
|
Cr |
ICP-AES AAS Diphenyl carbon acyl dihydrazide photometry |
|
Ni |
ICP-AES AAS Budione oxime photometry |
|
Mo |
Rhodanate-butyl acetate extraction photometryd ICP-AES |
|
V |
Tantalum reagent extraction spectrophotometric method ICP-AES |
|
Cu |
ICP-AES AAS The DDTC photometric method |
|
Al |
ICP-AES EDTA titrimetric method The chrome azurol S photometric method |
|
Fe |
ICP-AES Dichromate titration method |
Expiration of certification: The certification of this CRM is valid until January 1, 2026.
Table 3. Methods for homogeneity testing
|
Composition |
Analysis methods |
Minimum sample (g) |
|
Ti |
The Ammonium ferric sulfate titration method |
0.2 |
|
C、S |
The Infrared absorption method |
0.2 |
|
Mn、P、Cr、Ni、Mo、V、Cu、Al |
ICP-AES |
0.1 |
|
Si |
Perchloric acid dehydration gravimetric method |
0.5 |
|
Fe |
Dichromate titration method |
0.2 |
The certified reference material is packed in glass bottles with plastic covers. The net weight is 50g each. It is suggested to keep dryness when stored.
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