午夜人妻久久久久久久久,亚洲色无码专线精品观看,亚洲国产av一区二区三区四区,99在线精品资源站

Accessories

pH Buffer Solution

Includes 7 pH buffer solutions for routine pH calibration.

Description:
? Packaging: plastic bottle
? Volume: 480 mL

   Ordering Code


pH Value (@25°C)

Color

   PHCS-168


1.68

Colorless

   PHCS-401


4.01

Red

   PHCS-686


6.86

Yellow

   PHCS-700


7.00

Yellow

   PHCS-918  


9.18

Blue

   PHCS-1001


10.01

Blue

   PHCS-1245


12.45

Colorless

Items Description