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ASTM D4658-15
Standard Test Method for Sulfide Ion in Water (Withdrawn 2024)
Automaticky preložený názov:
Štandardná testovacia metóda pre sulfidu Ion vo vode
NORMA vydaná dňa 15.3.2015
Informácie o norme:
Označenie normy: ASTM D4658-15
Poznámka: NEPLATNÁ
Dátum vydania normy: 15.3.2015
Kód tovaru: NS-631191
Počet strán: 5
Približná hmotnosť: 15 g (0.03 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Kategórie - podobné normy:
Anotácia textu normy ASTM D4658-15 :
Keywords:
electrode, potentiometric, sulfide, water,, ICS Number Code 13.060.50 (Examination of water for chemical substances)
Doplňujúce informácie
| Significance and Use | ||||||||||||||
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5.1 Sulfide ion is found in ground waters and wastewater, causing odor and corrosion problems. If acidified, these waters can release hydrogen sulfide, which is extremely toxic even at low levels. This test method provides a means for interference-free measurement of free sulfide ion. Note 1: Sulfide forms complexes with hydrogen ions
(HS1− and H2S). In addition, sulfide ion
forms soluble complexes with elemental sulfur (S22−,
S1.1 This test method uses an
ion-selective electrode to determine sulfide ion in water. The test
method is applicable in the range from 0.04 to 4000 mg/L of
sulfide.
1.2 Precision data presented in this test method were obtained using reagent water only. It is the user's responsibility to ensure the validity of this test method for untested types of water. 1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.4 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 of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Sulfide samples, when acidified, can release highly toxic hydrogen sulfide gas. For a specific precautionary statement, see 7.5. |
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| 2. Referenced Documents | ||||||||||||||
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