Cookies
Potrebujeme váš súhlas na využitie jednotlivých dát, aby sa vám okrem iného mohli ukazovať informácie týkajúce sa vašich záujmov. Súhlas udelíte kliknutím na tlačidlo „OK“.
ASTM D2972-97
Standard Test Methods for Arsenic in Water
Automaticky preložený názov:
Štandardné testovacie metódy pre arzénu v vode
NORMA vydaná dňa 10.12.1997
Informácie o norme:
Označenie normy: ASTM D2972-97
Poznámka: NEPLATNÁ
Dátum vydania normy: 10.12.1997
Kód tovaru: NS-22125
Počet strán: 7
Približná hmotnosť: 21 g (0.05 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Anotácia textu normy ASTM D2972-97 :
Keywords:
Arsenic content-water, Atomic absorption spectrophotometry/spectroscopy, Colorimetric analysis-water, Furnaces, GFAAS (graphite furnace atomic absorption spectrometry), Hydride generation, Silver diethyldithiocarbamate (SDDC), Spectrophotometry-atomic absorption (water/wastewater), Water-inorganic constituents, arsenic content-water, by atomic absorption, spectrophotometry/diethyidithiocarbamate colorimetric analysis, test, ICS Number Code 13.060.50 (Examination of water for chemical substances)
Doplňujúce informácie
| 1. Scope | ||||||||||||||||||||||
|
1.1 These test methods cover the photometric and atomic absorption determination of arsenic in most waters and wastewaters. Three test methods are given as follows: Concentration Sections Range Test Method A-Silver Diethyldithio- 5 to 250 [mu]g/L 7 to 15 carbamate Colorimetric Test Method B-Atomic Absorption, 1 to 20 [mu]g/L 16 to 24 Hydride Generation Test Method C-Atomic Absorption, 5 to 100 [mu]g/L 25 to 33 Graphite Furnace1.2 The analyst should direct attention to the precision and bias statements for each test method. It is the user's responsibility to ensure the validity of these test methods for waters of untested matrices. 1.3 This standard does not purport to address all of the safety problems, 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. For specific hazard statements, see Notes 1 and 5. |
||||||||||||||||||||||
| 2. Referenced Documents | ||||||||||||||||||||||
|
Doporučujeme:
