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200X (If you need 400X
A: As often as you think you need to A rule of thumb is once every 30 tests or 4 months This fluid is a cheap form of insurance against inaccuracy
AND DO YOU KNOW WHAT YOU WILL FIND
Item Description: RHSN-10ATC Portable Heavy Duty Salinity Refractometer
Pickling Brine Solutions
Hanna Instruments HI 731225 Plastic 15mm Caps for Cuvettes (Pack of 4) Vet Refractometer 200X (If you need 400XItem Description: Hanna Instruments HI 731225 Plastic 15mm Caps for Cuvettes (Pack of 4) Product Features Caps for HI 731225 cuvettes to prevent spillage Screw top to stay securely fastened to cuvette and help keep sample from becoming contaminated Plastic construction for durability for HI713 HI736 HI764 HI755 HI758 checker HI 731225 is a set of plastic caps made for HI 731321 glass cuvettes, to prevent spillage and help protect samples from