| Measurement principle | Natural stacking method |
| meet the standard | GB/T 16913-2008 |
| material | 304 stainless steel material |
| Funnel taper | 60°±0.5° |
| Measuringflask material | 304 stainless steel material |
Warranty days: 365 days
1. For product quality problems caused by non-human products of instruments and equipment, the manufacturer will provide free warranty services during the warranty period;
2. There is no warranty period for fragile and consumable parts, and if you find product quality problems after receiving the goods, please apply for return and exchange within 7 days, and you will not wait for the overdue ones;