邻苯二甲酸二甲酯
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邻苯二甲酸二甲酯
BW903017 | 100mg
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甲醇中邻苯二甲酸二甲酯
SDS139088A | 1.2mL
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邻苯二甲酸二甲酯（EC 17025）
BW903017 | 100mg
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邻苯二甲酸二甲酯 Dimethyl phthalate
S24045-100g | 100g
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邻苯二甲酸二甲酯 Dimethyl phthalate
B62926-2ml | 2ml
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邻苯二甲酸二甲酯 Dimethyl phthalate
B30221-5ml | 5ml
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邻苯二甲酸二甲酯 Dimethyl phthalate
D806664-5ml | 5ml
Reference Material
This certificate is designed in accordance with ISO17034 and ISO Guide 31. This reference material (RM) was designed,produced andverified in accordance with ISO/IEC 17025, ISO 17034 and a registered qualitymanagement system ISO9001.
Product Name
Phthalic acid, bis-methyl ester
Product Code
BW903017
Lot Number
23051532
CAS No.
131-11-3
Mol. Formula
C10H10O4
Mol. Weight
194.18
Certified on
26 May 2023
Expiry Date
25 May 2025
Storage Temp
20°C ± 4°C
Specification
100 mg
CERTIFIED
Purity
CERTIFIED
Expanded Uncertainty (U)
Approved by
99.5%
0.5%
Method of Characterisation
GC/FID
Batch Information
Water Content:0.4298% (by Karl-Fischer-Titration)
Uncertainty
The certified value(s) and uncertainty(ies) aredetermined in accordance with ISO 17034 with an 95% confidence level (k=2).Uncertainty is based on the Total Combined Uncertainty, including uncertaintiesof characterisation, homogeneity and stability testing. Stability values arebased on real evidence opposed to simulation.
The producer certifies that this reference materialmeets the specification stated in this certificate until the expiry date,provided it is stored unopened at the recommended temperature herein. Productwarranties for this reference material are set out in the terms and conditionsof purchase.
Intended Use
This RM is intended for use in a laboratory as acalibration and quality control standard or in method development foranalytical techniques.
Safety
Proper precautions should be observed whilehandling. See Safety Data Sheet.
Traceability
The balances used for gravimetric measurements arecalibrated with weights traceable to the national standards (DKD). Thecalibration of the balances is verified daily internally and annually by anexternal accredited calibration service. Chromatographic methods are traceableto the International System of Units (SI).
Homogeneity
Random replicate samples of the final packaged RMhave been analysed to prove homogeneity compliant with ISO 17034.
Storage
The RM should be stored in the original sealedcontainer at the indicated temperature.
Instructions for use
It is recommended to use 1 mg as the minimum samplesize and if less material is used, to increase the certified uncertainty by afactor of two for half sample and four for a quarter of sample. If storageafter opening is necessary, the RM should be tightly closed and kept from lightand moisture. If the RM was in a sealed ampoule, it should be transferred to avial with minimum head space.
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