欧美乱大交做爰XXXⅩ性A,国产精品99久久婷婷五月色婷婷,亚洲AV自慰喷水AV欧美奶头,张筱雨扒开双腿毛茸茸的,日本丰满少妇无码AAA片软件

Accessories

pH Buffer Solution

Includes the USA and NIST pH buffer solutions.

Description:
? For routine pH calibration
? 480 mL per bottle

   Ordering Code


PHCS-USA

PHCS-NIST

   pH Value (@25°C)


4.01, 7.00, 10.01

4.01, 6.86, 9.18

   Packaging


PTFE bottle

PTFE bottle

   Dimensions


190 × 65(?) mm

190 × 65(?) mm

   Weight


500 g

500 g

Items Description

欧美乱大交做爰XXXⅩ性A,国产精品99久久婷婷五月色婷婷,亚洲AV自慰喷水AV欧美奶头,张筱雨扒开双腿毛茸茸的,日本丰满少妇无码AAA片软件