ASTM C31 READS THAT THE SAMPLE CYLINDERS FOR QC AND VT SHOULD BE DELIVERED TO THE LAB, STRIPED AND PLACED IN WATER WITHIN 48 HOURS OF MAKING THE CYLINDERS. THE SPEC 346-9.1 STATES "AT THIS SAME TIME"....., DOES THIS MEAN WITHIN THE 48 HOUR TIME LIMIT OR WHEN QC DELIVERS THEIR SAMPLES VT ALSO...