苯磺酸
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)
Benzenesulfonic Acid
Product Code(产品编号)
75716-100mg
Lot Number(产品批号)
-
CAS No.
98-11-3
Mol. Weight(分子量)
158.18
Mol. Formula(分子式)
C6H6O3S
Melting Point(熔点)
N/A
Expiry Date(失效日期)
-
Boiling point(沸点)
N/A
Appearance(外观)
White to Off-White Solid
Storage Temp(存储条件)
(2~8)℃,Keep in the shade
C E R T I F I E D
Purity
99.9%
C E R T I F I E D
Expanded Uncertainty (U)
0.5%
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 characterisation,
homogeneity and stability testing. Stability values are based on real evidence opposed to simulation.
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 |
|
| - |
|
RM Release |
Method of Identification
HPLC/DAD
Batch Information
Water Content by Karl-Fischer Titration: 2.73%
Method of Identification
HPLC/DAD
Batch Information
Water Content by Karl-Fischer Titration: 2.73%
Intended Use
This RM is intended for use in a laboratory as a calibration and quality control standard or in method development
for analytical techniques.
Storage
This reference material meets the specification stated in this certificate until the expiry date, provided it is
stored unopened at the recommended temperature here in. If storage after opening is necessary, the RM should be
tightly closed and kept from light and moisture.
Hazards
Read Material Safety Data Sheet (MSDS) and understand any potential hazard(s) prior to the use of this product.
All chemicals should be considered potentially hazardous in nature and should only be handled by qualified
personnel using established good laboratory practices.
Homogeneity
Random replicate samples of the final packaged RM have been analysed to prove homogeneity compliant with ISO
17034.
Instructions for use
It is recommended to use 1 mg as the minimum sample size and if less material is used, to increase the certified
uncertainty by a factor of two for half sample and four for a quarter of sample.Visit the support section of our
website technology videos and frequently asked questions.
浙公网安备 33010802013016号