Specifications
| pH value | 4.01, 6.86, 9.18 |
| Reagent ingredients (pH4) | potassium hydrogen phthalate |
| Reagent ingredients (pH6) | Disodium hydrogen phosphate, potassium dihydrogen phosphate |
| Reagent ingredients (pH9) | borax |
| Packaging Dimensions | 70 (H) × 60 (D) mm |
| Weight | 20g |
Packing list
Standard solution X1
After-sales instructions
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;
[Note] For after-sales services outside the Chinese mainland, if the instrument requires repair, the shipping and possible associated taxes shall be borne by the sender. Generation address of the manual: http://en.nbchao.com/p/38799/Specification.html , which is only used by users who purchase commodities from the NBCHAO.