3-戊酮
![]()
-
水中4种阴离子混合标样/（F、Cl、NO3、SO4）
BW02185d | F-：5.5mg/L Cl-：5.0mg/L NO3-：6.0mg/L SO4-：4.5mg/L
-
水中5种阳离子标样/离子色谱用/（钾、钙、钠、镁、铵）
BW02240d | 钾离子 4mg/L 钠离子 4mg/L钙离子 4mg/L 镁离子 4 mg/L铵离子 2mg/L
-
水质 重碳酸根标样/DZ/T 0064.49-2021 地下水质分析方法 第49部分：碳酸根、重碳酸根和氢氧根离子的测定 滴定法
BW02707d | 50μg/mL左右
-
水中锰标样
BW01059d | 1.40mg/L左右
-
5种金属混合标样/（铜、镉、镍、铅、锌）
BW01159d | 铜 2.05mg/L 镉 2.01mg/L 镍 2.08mg/L 铅 2.00mg/L 锌 2.03mg/L
3-戊酮
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 ISO9001.
Product Name
3-Pentanone
Product Code
BW901014
Lot Number
23041213
CAS No.
96-22-0
Mol. Formula
C5H10O
Mol. Weight
86.13
Certified on
17 Apr 2023
Expiry Date
16 Apr 2025
Storage Temp
(0~4)°C
Specification
0.5mL
CERTIFIED
Purity
CERTIFIED
Expanded Uncertainty (U)
Approved by
99.5%
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.
The producer certifies that this reference material meets the specification stated in this certificate until the expiry date, provided it is stored unopened at the recommended temperature herein. Product warranties for this reference material are set out in the terms and conditions of purchase.
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.
Safety
Proper precautions should be observed while handling. See Safety Data Sheet.
Traceability
The balances used for gravimetric measurements are calibrated with weights traceable to the national standards (DKD). The calibration of the balances is verified daily internally and annually by an external accredited calibration service. Chromatographic methods are traceable to the International System of Units (SI).
Homogeneity
Random replicate samples of the final packaged RM have been analysed to prove homogeneity compliant with ISO 17034.
Storage
The RM should be stored in the original sealed container at the indicated temperature.
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. If storage after opening is necessary, the RM should be tightly closed and kept from light and moisture. If the RM was in a sealed ampoule, it should be transferred to a vial with minimum head space.