| Laboratory Test Sheet |
| Relative Density - Gas Jar |
| Client : Site : |
| Client Ref : Lab. Ref : Job No : Date Received : |
| Supplier : Source : |
| Material Type : Specification : |
| Material Name : Stone Type : |
| Equipment Check :.............................................................. |
| Calibration Check :.............................................................. |
| Sieve Check :....................................................................... |
| Test 1 Test 2 |
| Weight of Saturated Surface Dry Sample (SSD) A (g) |
| Weight of Gas Jar Sample and Water B (g) |
| Weight of gas Jar and Water Only C (g) |
| Weight of Oven Dry Sample D (g) |
| Sample Immersion (24 +/- 1/2 hr) Date in 1 |
| Time in 2 Temp 1 4 5 |
| Time out 3 Temp 2 6 7 |
| Immersion in Gas Jar |
| Tme in 8 Temp 1 9 10 |
| Temp 2 11 12 |
| Mean |
| Weight of Sample and Tray (W2) (g) 15 16 |
| Weight of Tray (W1) (g) 13 14 |
| Difference (mass A) |
| Relative Density (Oven Dried) D |
| A - (B - C) |
| Relative Density (SSD) A |
| A - (B - C) |
| Relative Density (Apparent) D |
| D - (B C) |
| Water Absoption (% Dry Mass) 100 * (A - D) |
| D |
| Oven Drying Time (24 +/- 1/2 hr) Time in 17 |
| Time out 18 |
| Weight of Container and Sample (W4) (g) 21 22 |
| Weight of Container (W3) (g) 19 20 |
| Difference (mass D) |
| N.B. Ensure gas jars are numbered before use and thoroughly dried on the outside before weighing |
| Notes:- |
| 1. Report relative density to 0.01 |
| 2. Report Water Absorption to 0.1% |
| 3. State whether sample has been oven fried before test: YES/NO |
| Comments : |
| Tested By : Date : Checked By : Date : |
| Check Level (1/2/3) |