1.1 This practice presents sample collection and statistical evaluation procedures for testing mechanical sampling sys-lems, subsystems, and individual system components for bias.It is the responsibility of the user of this practice to select the appropriate procedure for a specific sampling situation. 1.2 This practice does not purport to define an absolute bias.Bias defined by this […]

1.1 This guide covers methods for field preservation of ground-water samples. Laboratory preservation methods are not described in this guide. 1.2 This standard may involve hazardous materials, opera-tions, and equipment. This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user

1.1 This practice establishes orientation codes for continuous-fiber-reinforced composite materials. Orientation codes are explicitly provided for two-dimensional laminates and braids. The laminate code may also be used for filament-wound materials. A method is included for presenting subscript information in computerized formats that do not permit sub-script notation. 1.2 This standard does not purport to address

1.1 This test method covers the use of gas chromatography to determine the amount of diesel fuel in used engine lubricat-ing oil. This test is limited to SAE 30 oil. The diesel fuel diluent is analyzed at concentrations up to 12 % by mass. N OTE 1—This test method may be applicable to higher viscosity

1.1 This test method covers a simple beaker-type procedure for evaluating the ffects of non- aqueous engine coolants on metal specimens under controlled laboratory conditions (sce Appendix XI).