For on-the-go testing, use pH buffer sachets. They come in light-blocking foil packaging labeled with a lot number and expiration date.
For on-the-go testing, use pH buffer sachets. They come in light-blocking foil packaging labeled with a lot number and expiration date.
Discontinued!
This product has been discontinued and is no longer available.
There is no direct replacement, however we recommend the:
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Hanna HI 70004G GroLine pH Buffer Sachets are ideal for applications involving hydroponics, aquaponics and greenhouses. The solution, which is for a pH of 4.01, is packaged into 25 single-dose units designed to fit conveniently in a pocket and ensure lasting freshness.
Features
| pH Value | 4.01 at 77°F (25°C) |
| Accuracy | ±0.02 pH at 77°F (25°C) |
| Size | 0.7 fl oz (20 mL) |
| Standard | ISO 3696/BS3978 |
| Quantity | 25 |
| Certificate of Analysis | Yes |
| pH Value | 4.01 at 77°F (25°C) |
| Accuracy | ±0.02 pH at 77°F (25°C) |
| Size | 0.7 fl oz (20 mL) |
| Standard | ISO 3696/BS3978 |
| Quantity | 25 |
| Certificate of Analysis | Yes |
