Analytical measurement method for measuring solid purity percentage content

1. This method is suitable for the purity analysis of precious metals such as gold and platinum; tin, copper; other metals; polymers, rubber and other products. The percentage of purity measured by this function alone cannot represent the absolute purity content. When absolute purity content measurement is required, an elemental analyzer must be combined to have a better effect.

2. Set the density of primary material and secondary material.

The standard measurement procedure of the electronic density balance to measure the percent purity of solids by content:

1. In the zero state, place the sample in the center of the measuring table.

2. After the stable symbol "O" is displayed, press the [ENTER] key once, and the memory status symbol M1 becomes M2, indicating that the weight in the air is successfully stored.

3. Place the product in the center of the hanging rail in distilled water, and observe that no bubbles can be generated on the surface of the product, and any bubbles need to be removed in time.

4. When the stable symbol "O" is displayed, press the [ENTER] key once to display the density value.

5. Optional: press A key to switch cyclically: density value SG, volume S1, purity content percentage S2; press B key to print the measured data; take out the sample, press [ENTER] key once, return to zero point to be measured .

When using the electronic density balance DA-300M to measure the percentage of solid purity, the corresponding solid measurement mode should be used first, because the electronic density balance DA-300M is a multi-functional density detector with multiple measurement modes available internally. Selection, different measurement modes should be selected when measuring different products.

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Item Description

Materail

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