Density measurements have proven their value in a number of industries on a wide variety of materials. The AccuPyc 1330 can analyze organic or inorganic samples with a vapor pressure of less than 25 mmHg. Using helium gas, volumes of these materials can be measured to a precision of ± 0.02% with relative ease.
As a demonstration, the AccuPyc 1330 was used to measure the density of a wide variety of materials. The temperature of measurement was 28 °C ± 0.5 °C. Results of these measurements are shown below.
Measured Densities of Some Commercial Items
| Material | Density (Standard Deviation)(g/cm3) | |
| Lipstick | 0.9895 | ± 0.0002 |
| Toothpaste | 1.5178 | ± 0.0002 |
| Chocolate Candy Milk Nut Dark Crisped Rice | 1.2908 1.1988 1.3083 1.1840 | ± 0.0003 ± 0.0002 ± 0.0005 ± 0.0002 |
| Petroleum Jelly | 0.8767 | ± 0.0000 |
| Peanut Butter Creamy Crunchy | 1.1176 1.1046 | ± 0.0000 ± 0.0001 |
| Bath Soap Floating Other | 0.9348 1.0400 | ± 0.0001 ± 0.0001 |
| Peanuts Salted Unsalted | 1.0872 1.0934 | ± 0.0001 ± 0.0003 |
| Oil Vacuum Pump Motor Diffusion Pump | 0.8634 0.8837 1.0593 | ± 0.0000 ± 0.0000 ± 0.0001 |
| Mercury, 28 °C | 13.5268 | ± 0.0012 |
| Putty Play-Doh Glazing compound | 1.2979 2.1303 | ± 0.0002 ± 0.0003 |
| Paint Rust preventative Latex, white, indoor Oil-based, outdoor | 0.9666 1.2362 1.0034 | ± 0.0000 ± 0.0002 ± 0.0001 |
| Mayonnaise Hellmans Miracle Whip | 1.0228 1.0628 | ± 0.0002 ± 0.0002 |
| Mustard English Dijon | 1.2213 1.0934 | ± 0.0003 ± 0.0002 |
Conclusions
The AccuPyc 1330 is capable of rapid measurements of organic or inorganic densities to a precision of 0.02%. This precision is sufficient to detect variability of organic and inorganic materials with a given lot and to estimate the purity of the samples.
