计算溶液所需的质量、体积或浓度。
The presentation of pH buffers in capsule format is tested at 25°C, NIST Traceable
The presentation of pH buffers in capsule format is tested at 25°C, NIST Traceable
These capsules offer the following advantages:
● Colour coded for ease of identification
● Easy to use
● Dissolve quickly
● Accuracy ±0.02 pH units
● Preservative free
● Economical
● Easy to store and transport
● Extended shelf life
● To use: Empty contents of one capsule into 100ml of distilled water