Reference Material For Instrument Calibration

Tsanangudzo Pfupi

Iyo CRM inoshandiswa pakutonga kwemhando uye calibration yezviridzwa zvekuongorora mukuongorora ferrosilicon.Inoshandiswawo pakuongorora nekusimbisa chokwadi chenzira dzekuongorora.Iyo CRM inogona kushandiswa kuendesa kukosha kwakayerwa.

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Certified Values

Tafura 1. Certified Values for YSBC 28604a-2013 (Mass Fraction %)

Number	Elements	C	S	Si	Mn	P	Fe	Al
YSBC 28604a-2013	Certified Values	0.050	0.002	69.96	0.256	0.023	26.57	1.26
YSBC 28604a-2013	Kusava nechokwadi	0.003	0.001	0.10	0.004	0.001	0.06	0.02
Number	Elements	Ca	Cu	Ni	Cr	Ti	Mg
YSBC 28604a-2013	Certified Values	0.649	0.013	0.010	0.049	0.107	0.019
YSBC 28604a-2013	Kusava nechokwadi	0.005	0.001	0.001	0.002	0.004	0.001

Analysis Nzira

Tafura 2. Nzira dzekuongorora

Composition	Nzira
C	Iyo infrared absorption nzira Gasi-volumetric nzira
S	Iyo infrared absorption nzira Kupisa iodometric nzira
Si	Perchloric acid dehydration gravimetric nzira Silicon potassium fluoride titrimetric nzira
Mn	Periodate photometric nzira ICP-AES
P	Bismuth phosphomolybdate yebhuruu spectrophotometric nzira Antimony phosphomolybdate yebhuruu spectrophotometric nzira ICP-AES
Fe	Potassium dichromate titration nzira
Al	EDTA titrimetric nzira Iyo chrome azurol S photometric nzira ICP-AES
Ca	ICP-AES AAS
Cu	BCO spectrophotometric nzira ICP-AES AAS
Ni	Dimetylglyoxime spectrophotometric nzira ICP-AES
Cr	Diphenyl carbon acyl dihydrazide photometry ICP-AES
Ti	Diantipyryl methane photometric nzira ICP-AES
Mg	ICP-AES AAS

Homogeneity Test uye Kugadzikana Kuongorora

Kupera kwechitupa: Chitupa cheCRM chinoshanda kusvika Mbudzi 1, 2023.

Tafura 3. Nzira dzekuongorora homogeneity

Composition	Analysis nzira	Minimum sample (g)
Si	Silicon potassium fluoride titrimetric nzira	0.1
C, S	Iyo infrared absorption nzira	0.2
Mn,P,Al,Ca,Cu,Ni,Cr,Ti,Mg	ICP-AES	0.2
Fe	Potassium dichromate titration nzira	0.2

Kurongedza uye Kuchengeta

Iyo certified reference material yakarongedzwa mumabhodhoro egirazi ane mavhavha epurasitiki.Huremu hwemambure i50 g imwe neimwe.Inokurudzirwa kuchengetedza kuoma kana yachengetwa.