环氧氯丙烷
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REFERENCE MATERIAL CERTIFICATE
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
Epichlorohydrin
Product Code
BW901113
Lot Number
23091524
CAS No.
106-89-8
Mol. Formula
C3H5ClO
Mol. Weight
92.52
Certified on
13 Sep 2023
Expiry Date
12 Sep 2026
Storage Temp
4°C ± 4°C
Specification
1g
CERTIFIED
Purity
CERTIFIED
Expanded Uncertainty (U)
Approved by
99.3%
1.0%
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.
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本公司销售的所有产品仅供实验科研使用，不用于人体及临床诊断。
1. 气相色谱法（GC）：用于测定主含量及杂质，色谱柱为毛细管柱，检测器为氢火焰离子化检测器（FID）。
2. 卡尔·费休法：测定水分含量。
气相色谱法检出限：0.01%（质量分数）；定量限：0.05%。
卡尔·费休法检测限：10 μg/g。
1. 空白对照：使用高纯试剂验证背景干扰。
2. 加标回收试验：回收率需在90%-110%之间。
3. 平行样测定：两次平行结果相对偏差≤5%。
1. 样品前处理：取代表性样品，必要时过滤或稀释。
2. 气相色谱条件优化：柱温程序从60℃升至200℃（速率10℃/min）。
3. 进样分析：进样量1 μL，分流比50:1。
1. 环氧氯丙烷易挥发且有毒，需在通风橱中操作。
2. 标准品需避光冷藏保存，避免分解。
3. 实验废液按危险化学品废弃物处理。
以上信息仅供参考，请以相应标准的原文为准！