1. Balance, Weights, and Weighing SMK Negeri 13 Bandung

2. Teknologi dan Rekayasa Objectives After this session, the students are expected to be able : 1.To identify types of balance 2.To identify the component of analytical balance 3.To operating balance 4.To count weight

3. Teknologi dan Rekayasa Types of Balances  Ainsworth; accurate single-pan balance, digital in line readout, substitution method of weighing, accuracy 0.0001 gram.  Sartorious; accurate single-pan balance, digital in line readout, substitution method of weighing, accuracy 0.0001 gram.  Single-pan; top-loading, substitution-type, rapid-reading balance with varied sensitivities, optical micrometer scale.  Portable spring for coarse weighing object.  Double-pan, analytical balance, manual weight and rider adjustment, readout to 0.0001 gram.

4. Teknologi dan Rekayasa Types of Balances  Double-pan, chainomatic balance. Chain device adjusts weight addition to 0.0001 gram.  Double-pan balance for general laboratory weighing, sensitivity 0.1 gram and used with counterbalance containers.  Torsion, dial-reading balance. Rapid adjustment of the 10 gram weight increment by rotation of dial.  Triple-beam balance with hooks for specific-gravity determination.  Triple-beam balance for general laboratory weighing, sensitivity 0.1 gram for direct weighing, with all attached weights to increase capacity.

5. Teknologi dan Rekayasa Component of Analytical Balance  Balance Scoop, used to weigh sample powder which are easily poured with the spout.  Balance Weighing Dish, used weighing small quantities of liquids or solids.  Balance Weights;  Analytical balance weights with forceps from 1 mg to 100 grams. Handle with forceps because they are precision weights.  One-piece brass weights, to be used where accuracy permits (weights from 1 gram to 2000 gram).

6. Teknologi dan Rekayasa Analytical Balance  For analytical purposes a balance with a maximum load of 100-200 g and a sensitivity 0f 0.1 mg usually required.