Latest analysis of the shelf life and stability of imported standards - Database & Sql Blog Articles

KT2520K26000DCW28QAS import spot

MOSFET imported original FET

Factory direct sales - SMD aluminum electrolytic capacitor - straight plug solid capacitors, the products are imported from Japan, aluminum foil,

Imported standard products are one of our company's main products, involving brands such as Sigma/USP, quality assurance. Today, Shanghai Hengyuan Bio Company analyzes the shelf life and stability of the standard products for you. Let’s look at it together:

First, the shelf life

1. The manufacturer's label or analysis certificate generally has a shelf life. The meaning is that when the product is not opened for use and stored according to the conditions specified by the manufacturer, the manufacturer is responsible for the consistency of the purity of the product and the purity of the analytical certificate. Since there is a certain error in the analysis, the purity of the product generally has an uncertainty or error range. There are some products, because the nature of the material is special, the manufacturer does not specify the specific shelf life of the product, but guarantees that it is valid within the certain time range of the factory or the customer receives the product, that is, the purity and analysis of the product by the manufacturer within this time limit. The consistency of the purity on the certificate is responsible.

2. After opening and using: After the product is opened for use, the pure type standard is generally stable under appropriate storage conditions. The shelf life of the product given by the manufacturer is also available for reference. A few volatile substances such as acetaldehyde are excluded. For solution type standards, it is recommended that customers use them as soon as possible after opening. Material degradation and solvent evaporation may affect the concentration of the solution.

Second, stability

For the purchased solution type standard and the standard solution prepared by yourself in the pure type, please store it under appropriate conditions after the initial use. If you need to use it again after a period of time, please confirm the concentration of the solution and compare it with the previous data.

The Dragon Boat Festival is approaching, and we have discounts and gifts for our products! For more information, consult and order imported standard products, please pay attention to company dynamics, or call our sales staff. Shanghai Hengyuan Bio Supply and Demand is looking forward to your call.