مواد استاندارد
pHBuffer Solution pH10.062 ± 0.010 @20°C
pHBuffer Solution pH9.225 ±0.010 @20˚C
pHBuffer Solution pH7.429± 0.010 @20°C
pHBuffer Solution pH6.881 ±0.010 @20°C
pHBuffer Solution pH4.001 @20°C
pHBuffer Solution pH3.788 ±0.010 @20˚C
pHBuffer Solution pH1.677 ±0.010 @20˚C
pHBuffer Solution pH1.675 ±0.010 @20˚C
pHBuffer Solution pH10.00 ± 0.01 @25°C (Blue) Mercury Free
pHBuffer Solution pH7.00 ± 0.01@25°C (yellow) Mercury Free
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دتکتور تیوب گاز Nitrogen dioxide رنج: 0.2-12 بسته 10 عددی GASTEC ژاپن