GB/T 37041-2018 in English
VALIDFine barite powder
- Issued on:2018-12-28
- Implemented on:2019-11-01
- File Format:PDF
- Delivery:Within 1 day
$171.00
| Standard No: | GB/T 37041-2018 |
| Document status: | VALID |
| Title in English: | Fine barite powder |
| Title in Chinese: | 精细重晶石粉 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Within 1 day |
| Issued on: | 2018-12-28 |
| Implemented on: | 2019-11-01 |
| ICS Classification: | 73.080-Non-metalliferous minerals |
| Chinese Classification: | Q69-Other non-metal mine product |
| Professional Classification: | GB-National Standard |
| Related Keywords: | fine barite powder
fine barite powder introduction 37041-2018 fine barite powder barite powder barium sulfate content |
| Related Topics: | Barite 6 microns
Barite barite cadmium pink crystal When recrystallized fine spectrum fine powder ingredients Recrystallizer fine Automatic fine barite powder fine spectrum Fine powder specification triple noodles A small amount of recrystallization GBT37041 GB/T 37041-2018 stone powder execution The basis of barite powder gold powder Lithium powder Fine chemicals weighing accuracy |
《GB/T 37041-2018精细重晶石粉》由TC406（全国非金属矿产品及制品标准化技术委员会）归口，主管部门为中国建筑材料联合会。
Introduction
1. Standard Overview
GB/T 37041-2018 Fine Barite Powder specifies the terms and definitions, requirements, test methods, inspection rules, as well as marking, packaging, transportation and storage of fine barite powder. This standard is applicable to fine barite powder for materials such as coatings, plastics, rubber, paints and inks.
2. Physical and chemical performance indicators
| Item | Indicator |
|---|---|
| Barium sulfate content/% | ≥94.0 |
| Total iron (as ferric oxide) content/% | ≤0.10 |
| 105℃C volatile matter content/% | 0.50 |
| Water-soluble matter content/% | ≤0.50 |
| Whiteness | ≥85.0 |
| Oil absorption/(g/100 g) | 10.0~30.0 |
| pH value | 5.5~9.5 |
| 45 μm sieve residue/% Particle size distribution | ≤0.30 To be agreed upon by both parties |
3. Interpretation of key test methods
Determination of barium sulfate content: The acid dissolution method is used to determine the barium sulfate content through high-temperature melting, precipitation reaction and other steps. This method has high accuracy and repeatability.
Total iron content determination: Two methods, o-phenanthroline colorimetry and sulfosalicylic acid colorimetry, are used for different ranges of iron content detection. Both methods have high sensitivity and selectivity.
105℃ volatile content determination: Thermogravimetric analysis is used to measure the mass change of the sample under constant temperature conditions and calculate the volatile content. This method is simple and reliable and suitable for large-scale sample detection.
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