ASTM D6036-96(2014)
使用地图展示主要离子和微量元素用地下水的化学分析结果的标准指南

Standard Guide for Displaying the Results of Chemical Analyses of Groundwater for Major Ions and Trace Elements—Use of Maps

标准号

ASTM D6036-96(2014)

发布

1996年

发布单位

美国材料与试验协会

当前最新

ASTM D6036-96(2014)

 

 

引用标准

ASTM D1129 ASTM D5254 ASTM D5408 ASTM D5409 ASTM D5410 ASTM D5474 ASTM D5717 ASTM D5738 ASTM D5754 ASTM D5877 ASTM D596 ASTM D653

适用范围

4.1 Each year many thousands of water samples are collected and the chemical components are determined from natural and human-influenced groundwater sources.

4.2 The objective interpretation of the origin, composition, and interrelationships of water can be simplified by displaying the distribution of the constituents and related parameters on areal maps (1,2).4

4.2.1 The origin of the chemical composition of the water may be postulated by the amount and the distribution of the constituents as shown on the maps.

4.2.2 The chemical composition of the water can be scrutinized for distinct characteristics and anomalies by use of the maps.

4.2.3 The interrelationships of the water chemistry from various sampling locations can be visualized on the maps.

4.3 This guide presents various mapping methods for showing distribution of chemical constituents using areal and time-related trends; maximum, minimum, or mean values; and relationships between chemical and associated parameters.

4.4 Exercise caution when interpreting the distribution of chemical constituents on two-dimensional (X and Y) maps as liquids of different densities tend to stratify in the third dimension (Z).

Note 2: Water (or other liquid) with a relatively low concentration of dissolved solids (or of a low relative density) normally will float on top of water with high dissolved solids or a liquid of higher density (3-7). A naturally occurring example is an island surrounded and underlain by sea water where rain water falling on the island forms a fresh water lens above the underlying sea water. Where the presence of liquids of different densities are evident in a mapped area, cross sections of the aquifer assist in showing the vertical (Z) distribution of the chemical constituents or a pattern can be used on the map to delineate the extent of this water.

Note 3: Immiscible liquid contaminants, such as petroleum products, with a relative density less than that of the water will float on top of the water. Liquids that are more dense than water will flow to the bottom of the aquifer. Miscible liquids, such as sea water, mix with the fresher water crea......

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