Delmar Cryosorption Pumping
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چکیده
Dial balances are preferred for speed in today's crowded school laboratory. Dial-O-Gram 310 is preferred for speed, accuracy, and the ruggedness which withstands student handling and makes expensive service contracts unnecessary. The unique accuracy of Dial-O-Gram 310 is the result of extensive research by Ohaus on the cause and correction of errors in spiral spring mechanisms. Only Ohaus uses special production techniques to insure that both spiral springs and dial graduations are sufficiently linear to provide true 10 mg accuracy. Dial-O-Gram 310 has been honored by Chemical Processing Magazine in its Vaaler Award as "a new fast, accurate and low cost balance for broad laboratory usage. It is extremely sturdy and durable and is designed for compactness and convenience." Labs find the balance accurate enough for 90% of their weighings.
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