how is pcf density used in astronomy

The formula to determine the density of an item is: LxWxH / 1728 = Cubic Feet (CU FT), Weight (Pounds)/CU FT = Density (#PCF). Mar 22, 2019 ... I have a situation where the design concrete mix was 4000 PSI, with 145 pcf density - pretty standard mix, with components as follows: ... Density (PCF) (kg/m³). 1.35 – 1.65 PCF. 21.6 - 26.4 kg/m³. ASTM D3574. Compression Deflection (CFD) (psi). (kPa) @25%. 22-36 lbs/50 in2. 40-72 lbs/50 in2. ASTM ... ... density greater than 86 pcf but less than 95 pcf. SUITABLE SOIL. n AASHTO T-99 or Materials IM 309 Proctor Density of 95 pcf or greater, and. n AASHTO M 145 ... A density break at 5 pcf reflects the modality and spread of the distribution. 1 The Density Study is part of an ongoing effort by the FCDC to collect ... Density. (pcf). Volume. Removed,. (cm3). Density. (pcf). Volume. Removed,. (cm3). Density. (pcf). Volume. Removed,. (cm3). 16.1. 3.3. 19.0. 15.6. 13.7. 13.5. Surface and Density: Open cell. Density range 1.2 – 2.9 pcf (pounds per cubic foot.) Comfort and durability: Less foam, more air in the poured process. Higher ... 2 Turn to the proper tables provided with the nuclear gauge and record the wet density, pcf. 8.2. Calculate moisture content, %. 8.2.1 Divide the moisture ... Take additional readings to replace the discarded readings until all the readings are within 1 pcf (16 kg/m3) of the average. 26.10. Move the density gauge ... Jul 20, 2023 ... Once the increase in density is 1 PCF or less, move the last two density readings to the maximum density determination section on form T-313.