Books · Search
Report on the U.S. Geological Survey's evaluation program for standard reference samples distributed in October 1994
H. Keith Long1995
Report on the U.S. Geological Survey's evaluation program for standard reference samples distributed in April 1992
H. Keith Long1992
Report on the U.S. Geological Survey's evaluation program for standard reference samples distributed in May 1995
H. Keith Long1995
U.S. Geological Survey Standard Reference Sample Project--performance evaluation of analytical laboratories
H. Keith Long1998
Report on the U.S. Geological Survey's evaluation program for standard reference samples distributed in October 1992, T-121 (trace constituents), M-124 (major constituents), N-36 (nutrients), N-37 (nutrients), P-19 (low ionic strength) and Hg-15 (mercury)
H. Keith Long1993