Detection Target
Determination of 2,6-Di-tert-butyl-p-cresol (DBPC) in Insulating Oil
Overview
This solution conforms to the ASTM D2668 Standard Test Method for 2,6-di-tert-Butyl- p-Cresol and 2,6-di-tert-Butyl Phenol in Electrical Insulating Oil by Infrared Absorption and IEC 60666 Detection and determination of specified additives in mineral insulating oils. This test method covers the determination of the weight percent of 2,6-ditertiary-butyl paracresol (DBPC) and 2,6-ditertiary-butyl phenol (DBP) in new or used electrical insulating oil in concentrations up to 0.5 % by measuring its absorbance at the specified wavelengths in the infrared spectrum. The quantitative determination of 2,6-di tertiary-butyl paracresol and 2,6-di tertiary-butyl phenol in a new electrical insulating oil measures the amount of this material that has been added to the oil as protection against oxidation. In a used oil it measures the amount remaining after oxidation has reduced its concentration. The test is also suitable for manufacturing control and specification acceptance.
Apparatus
HKL-60666 FTIR Spectrometer for 2,6-di-tert-Butyl Phenol
Specification
Spectral range: 7800~350 cm-1
Resolution: Better than 1.0 cm-1
Signal-to-noise ratio: RMS value better than 150000:1; P-P value better than 30000:1 (at 4 cm-1 resolution, 1-minute background and sample scan, 2100 cm-1 wavenumbers)
Detector: High-sensitivity pyroelectric detector, non-deliquescent (original imported)
Beamsplitter: Multi-layer coated KBr with moisture-proof coating (original imported)
Scanning speed: Computer-controlled with selectable scanning speeds, adjustable in steps, automatic spectrum comparison
IR source: Long-life, high-intensity air-cooled system infrared source (original imported)
Wavenumber accuracy: 0.01 cm-1
Highly stable optical system: Integrated optical bench design, sealed interferometer; equipped with rapid temperature status recognition function.
Moving and fixed mirrors adopt integrated corner mirror design, ensuring consistency in mirror matching. The reflective surface is enlarged for higher light throughput and reflectivity. The corner mirrors feature high perpendicular precision, are adhesive-free, and unaffected by temperature, maximizing instrument stability.
Power supply: AC 220V, 50Hz
Operating system/Data interface: Windows 7/10, high-speed USB 2.0
Weight: Approx. 14 kg.
Configuration
Category | Name | Specification | Number |
Infrared Host | HKL-60666 FTIR Spectrometer for 2,6-di-tert-Butyl Phenol | Refer to the specifications above for details. | 1 set |
Operating Software | Software Workstation (HKL-FTIR-650 Specialized) | 1. Supports annotations for spectra 2. Data processing functions 3. Spectrum retrieval and comparison 4. Self-diagnosis 5. Spectrum display enhancement 6. Spectrum matching analysis 7. Standard file formats 8. The software workstation provides lifelong free upgrades and includes a library of over 200000 standard infrared spectra for easy retrieval and comparative analysis. | 1 set |
Specialized Software | Standard Quantitative Module | Automatically calculates numerical results (not manual Excel calculations). Uses standard curves for quantitative analysis of samples. | 1 set |
Accessories | Fixed Liquid Cell | NaCl windows (sodium chloride), testing wavelength 7800~400 cm⁻¹, optical path 0.1 mm; 2 sets in total (1 set as backup). | 2 sets |
Infrared Dry Cabinet | Specialized for HKL-FTIR-650, effectively extends the lifespan of core components, protects against moisture and dust, and reduces losses caused by improper manual maintenance. | 1 unit |