Atth 2 EQAP.pdf
PDF 470 KB Posted
- Attached to
- Laboratory Services Panama
- Solicitation number
- SPE603-26-Q-0501
- Issued by
-
Defense Logistics Agency Energy
About this file
This document is a Supplemental Quality Assurance Provision (SQAP) that establishes testing procedures for sulfides in water samples from fuel storage tanks. The ENERGY QAP E34 procedure was approved in May 1987 and is applicable to contract SPE603-26-Q-0501 administered by Panama Labs under the Defense Energy Support Center.
The test procedure requires representative water samples to be collected from storage tank bottoms in glass bottles, with samples from Bacon bomb samplers transferred to glass bottles and immediately capped to prevent oxidation. Testing must occur as soon as possible after sampling. The procedure involves transferring 100 milliliters of thoroughly shaken sample into a 250-milliliter conical flask, adding 20 milliliters of dilute (10%) chemically pure sulfuric or hydrochloric acid, placing lead acetate paper folded in a "V" shape in the flask neck, and gently boiling the water for three to four minutes. The presence of sulfides is reported if the lead acetate paper exhibits black or brown discoloration. Materials required include dilute acid and lead acetate paper. This quality assurance provision establishes the standardized method for identifying hydrogen sulfide contamination that may result from bacterial action on sulfates in fuel storage tank bottoms.
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Text version
SUPPLEMENTAL QUALITY ASSURANCE PROVISION (SQAP)
REVISIONS
REV DESCRIPTION DATE APPROVED
ENERGY QAP E34 May 1987
E34 TEST FOR SULFIDES IN WATER
(a) SCOPE. This method describes a procedure for determining the presence of hydrogen sulfide, which is sometimes formed as a result of bacterial action on the sulfates contained in water bottoms in fuel storage tanks.
(b) APPARATUS. 250 ml conical flask.
(c) MATERIALS.
(I) Dilute (10%) chemically pure sulfuric or hydrochloric acid.
(2) Lead acetate paper.
(d) SAMPLES. Representative water samples from storage tank bottoms must be taken in a glass bottle. In some cases it will be necessary to take the water sample in a Bacon bomb sampler. Samples so taken will always be transferred to a glass bottle. To preclude oxidation by air, the filled bottle must be capped immediately. The sample should be tested as soon as possible after sampling to minimize possible changes in the composition of materials in the water.
(e) PROCEDURE.
(1) The sample must be shaken U1oroughly just prior to performing the test to make certain that any sediment present is included in the portion of the sample to be tested.
(2) Transfer 100 ml of the shaken sample into a conical flask. Add 20 ml of dilute (10%) chemically pure sulfuric or hydrochloric acid to the flask. Immediately place a piece of lead acetate paper folded in a "V" shape in the neck of the flask. Bring the water to a boil and continue to gently boil for three or four minutes.
(f) REPORT. The presence of sulfides in the sample will be reported if the lead acetate paper shows a black or brown discoloration.
SUPPLEMENTAL QUALITY ASSURANCE PROVISION (SQAP)
TEM
DEFENSE ENERGY SUPPORT CENTER
8725 JOHN J. KINGMAN RD
FORT BELVOIR, VIRGINIA 22060�6222
DISTRIBUTION
STATEMENT-A �NERGY QAP E34
APPROVED FOR
PUBLIC RELEASE
1�SN
MULTIPLE
DISTRIBUTION IS ·- ' • . ....• -. - - - - •••• -·- -�- · - - ' - - SIZE
"UNLIMITED"
SCALE
CODE ID NO.
52838
DRAWING NUM];IER
DLA FORM 1889, OCT 2011 PREVIOUS EDITION IS USABLE Add Continuation Page SHEET 1 OF 1 PDF(DLA)
EQAP
SPE603-26-Q-0501
Attachment 2 Panama Labs
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