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KIRTLAND AIR FORCE BASE ALBUQUERQUE, NEW MEXICO ...

KIRTLAND AIR FORCE BASE ALBUQUERQUE, NEW MEXICO ...

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APPENDIX B<br />

SOP B5.3<br />

Water Temperature<br />

Water temperature may be measured with either a thermometer or temperature meter. The following<br />

procedure is applicable to both instruments:<br />

Rinse the thermometer or temperature probe with a portion of the collected sample.<br />

Immerse the thermometer or probe in the sample until temperature equilibrium is obtained<br />

(1- to 3-minutes). To avoid the possibility of contamination, the thermometer should not be<br />

inserted into samples which will undergo subsequent chemical analysis.<br />

Record values in a field log book to the nearest 0.5 ° C.<br />

If a temperature meter or probe is to be used, the instrument should be calibrated according<br />

to the manufacturer‘s recommendations and a National Bureau of Standards (NBS) certified<br />

thermometer or one that is traceable to NBS certification before field use. Cross-checking<br />

and duplicate field analyses should agree within ± 0.5 ° C. A cross-check with a calibrated<br />

NBS certified thermometer will be made at least semiannually.<br />

Rinse the thermometer or probe with distilled water.<br />

Kirtland AFB<br />

SOPs for Field Investigations B-129 April 2004

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