NB/SH/T 0864-2023 in English
VALIDDetermination of elements in lubricating greases - Inductively coupled plasma optical emission spectrometry
- Issued on:2023-12-28
- Implemented on:2024-06-28
- File Format:PDF
- Delivery:Via email within 1~3 business days
$219.00
| Standard No: | NB/SH/T 0864-2023 |
| Document status: | VALID |
| Title in English: | Determination of elements in lubricating greases - Inductively coupled plasma optical emission spectrometry |
| Title in Chinese: | 润滑脂中元素的测定 电感耦合等离子体发射光谱法 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 1~3 business days |
| Issued on: | 2023-12-28 |
| Implemented on: | 2024-06-28 |
| ICS Classification: | 75.100-Lubricants, industrial oils and related products |
| Chinese Classification: | E36-Lubricating grease |
| Professional Classification: | SH-Petrochemical |
| Related Keywords: | plasma optical emission spectrometer
plasma optical emission spectrometry introduction analysis multiple elements non-metallic elements optical path purge device |
Introduction
Analysis of the core content of the standard
This standard specifies the method of using inductively coupled plasma optical emission spectrometer to determine multiple elements in unused grease. After sulfate ashing or microwave digestion pretreatment, the characteristic spectral lines of the elements to be measured are excited by plasma for quantitative analysis.
| Key Improvements | 2013 Edition | 2023 Edition |
|---|---|---|
| Measurement Element Range | Metallic Elements | Extended to Non-metallic Elements such as Boron/Phosphorus |
| Wavelength Recommendation | No Boron Element | Added Boron Characteristic Lines such as 208.959nm |
| Pretreatment Restrictions | Unspecified | Indicate the applicability of silicone grease |
Instrument Technical Requirements
ICP-OES must meet the following core parameters:
- Wavelength range: 167-589nm (covering aluminum to sodium)
- Detection limit: ≤10mg/kg (most elements)
- Peristaltic pump flow rate: 0.5-3mL/min
Method precision data
Key element precision verified by 8 laboratories:
| Element | Range (mg/kg) | Repeatability (r) | Reproducibility (R) |
|---|---|---|---|
| Calcium | 20-50000 | 2.285X0.73 | 3.057X0.71 |
| Boron | 500-12600 | 0.192X0.72 | 0.471X0.69 |
Implementation Suggestions
- It is recommended to use closed microwave digestion for silicon-containing samples and avoid using hydrofluoric acid
- Alkaline grease should be selected class=instrument>Platinum crucible for ash treatment
- Each batch of samples needs to be analyzed simultaneously with the QC control sample to verify the reliability of the data
This standard incorporates the element boron into the detection system for the first time, providing a standardized detection method for the quality control of boron-containing lubricating additives.
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