22:
179:
Electrical conductivity can be expressed using a number of different units but the international standard is EC, and the unit of measurement is usually milliSiemens or microSiemens. The difference between these two units of measurement is the placement of the decimal point, so 1 milliSiemens is equal
165:. Conductivity measurements are also used in ecology and environmental sciences to assess the level of nutrients in lakes and rivers. For a discussion of conductivity in this context, see
173:
CF (conductivity factor) is basically EC multiplied by 10, and is used in some places because it eliminates the need for a decimal point, so an EC of 0.1 is equal to a CF of 1.
197:
39:
105:
86:
58:
43:
65:
142:
72:
54:
32:
166:
154:
250:
245:
134:
201:
79:
130:
239:
162:
138:
21:
230:
146:
127:
225:
158:
157:
in that solution can be measured. Measurements can then be used to
150:
15:
161:
the solution with the necessary nutrients in the case of
46:. Unsourced material may be challenged and removed.
198:"Electrical Conductivity (EC) - Growth Technology"
145:. Using the electrical conductivity between two
8:
106:Learn how and when to remove this message
189:
7:
44:adding citations to reliable sources
14:
20:
31:needs additional citations for
1:
267:
180:to 1000 microSiemens.
153:solution, the level of
167:Total dissolved solids
55:"Conductivity factor"
40:improve this article
120:conductivity factor
116:
115:
108:
90:
258:
213:
212:
210:
209:
200:. Archived from
194:
155:dissolved solids
111:
104:
100:
97:
91:
89:
48:
24:
16:
266:
265:
261:
260:
259:
257:
256:
255:
236:
235:
222:
217:
216:
207:
205:
196:
195:
191:
186:
176:
172:
112:
101:
95:
92:
49:
47:
37:
25:
12:
11:
5:
264:
262:
254:
253:
248:
238:
237:
234:
233:
228:
221:
218:
215:
214:
188:
187:
185:
182:
114:
113:
96:September 2018
28:
26:
19:
13:
10:
9:
6:
4:
3:
2:
263:
252:
249:
247:
244:
243:
241:
232:
229:
227:
224:
223:
219:
204:on 2018-03-31
203:
199:
193:
190:
183:
181:
177:
174:
170:
168:
164:
160:
156:
152:
148:
144:
140:
136:
132:
129:
125:
121:
110:
107:
99:
88:
85:
81:
78:
74:
71:
67:
64:
60:
57: –
56:
52:
51:Find sources:
45:
41:
35:
34:
29:This article
27:
23:
18:
17:
206:. Retrieved
202:the original
192:
178:
175:
171:
143:conductivity
123:
119:
117:
102:
93:
83:
76:
69:
62:
50:
38:Please help
33:verification
30:
251:Electricity
246:Measurement
163:hydroponics
139:measurement
133:in a given
240:Categories
208:2018-03-30
184:References
147:electrodes
66:newspapers
231:TDS meter
128:dissolved
226:EC meter
220:See also
135:solution
80:scholar
82:
75:
68:
61:
53:
151:water
149:in a
137:is a
131:salts
126:) of
87:JSTOR
73:books
159:dose
118:The
59:news
141:of
42:by
242::
169:.
124:CF
211:.
122:(
109:)
103:(
98:)
94:(
84:·
77:·
70:·
63:·
36:.
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.