甲苯-2,5-二胺硫酸盐(以甲苯-2,5-二胺计)
Reference Material
This certificate is designed in accordance with ISO 17034 and ISO Guide 31. This reference material
(RM) was designed,produced and verified in accordance with ISO/IEC 17025, ISO 17034 and a registered
quality management system ISO 9001.
Product Name(产品名称)
2,5-Diaminotoluene sulfate in Methanol,1000μg/mL
Part Number(产品编号)
92005a
Lot Number(产品批号)
21040112
CAS No.
615-50-9
Mol. Formula(分子式)
C7H10N2·H2SO4
Mol. Weight(分子量)
220.24________________
Storage Temp(存储条件)
(2~8)℃,Keep in the shade
QC Test Results |
Item |
Test Results
|
Analysis method(分析方法) |
HPLC/DAD |
Concentration(浓度) |
1000μg/mL(free base) |
Uncertainty |
2% |
Expiry Date(失效日期) |
2022-May-26 |
,
Uncertainty
The certified value(s) and uncertainty(ies) are determined in accordance with ISO 17034 with an 95%
confidence level (k=2). Uncertainty is based on the Total Combined Uncertainty, including
uncertainties of preparation, purity of neat materials, homogeneity, stability testing.
Traceability
The balances used for gravimetric measurements are calibrated with weights traceable to the national
standards. The calibration of the balances is verified annually by an external accredited
calibration service. This analysis method has been verified using an approach consistent with ISO 17034:2016 & ISO 17025:2017.
CERTIFICATE ON |
QC SIGNATURE |
|
2021-May-27 |
|
RM Release |