ASTM E617-13
ASTM E671-98(2010)..
ASTM E672-87(2011)..
ASTM E675-02(2012)..
ASTM E676-02(2012)..
ASTM E677-94(2010)..
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 D3694-96(2011)
Standard Practices for Preparation of Sample Containers and for Preservation of Organic Constituents
Automaticky preložený názov:
Štandardné postupy pre prípravu Nádoby a za zachovanie organické zložky
NORMA vydaná dňa 1.5.2011
Informácie o norme:
Označenie normy: ASTM D3694-96(2011)
Poznámka: NEPLATNÁ
Dátum vydania normy: 1.5.2011
Kód tovaru: NS-24509
Počet strán: 7
Približná hmotnosť: 21 g (0.05 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Kategórie - podobné normy:
Anotácia textu normy ASTM D3694-96(2011) :
Keywords:
organic constituents, sample containers, sample preservation, Alkylbenzene compounds, Amines content, Carbon content--water, Chlorophenoxy acid herbicides, Cyanides, Cyclohexylamine content, EDTA method, Glass containers, Glass samples/containers, Morpholine, PCBs (polychlorinated biphenyls), Pesticide content, Phenolic compounds, Sample preparation--water applications, Sampling containers, Sampling water analysis applications, Total oxygen demand (TOD), Volatile matter content--water
Doplňujúce informácie
| Significance and Use | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|
There are four basic steps necessary to obtain meaningful analytical data: preparation of the sample container, sampling, sample preservation, and analysis. In fact these four basic steps comprise the analytical method and for this reason no step should be overlooked. Although the significance of preservation is dependent upon the time between sampling and the analysis, unless the analysis is accomplished within 2 h after sampling, preservation is preferred and usually required. |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 1. Scope | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|
1.1 These practices cover the various means of (1) preparing sample containers used for collection of waters to be analyzed for organic constituents and (2) preservation of such samples from the time of sample collection until the time of analysis. 1.2 The sample preservation practice is dependent upon the specific analysis to be conducted. See Section 9 for preservation practices listed with the corresponding applicable general and specific constituent test method. The preservation method for waterborne oils is given in Practice D3325. Use of the information given herein will make it possible to choose the minimum number of sample preservation practices necessary to ensure the integrity of a sample designated for multiple analysis. For further considerations of sample preservation, see the Manual on 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. For specific hazard statements, see 6.7, 6.24, and 8.1.3. |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 2. Referenced Documents | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|
Podobné normy:
Historická
1.5.2013
Historická
1.4.2010
Historická
1.12.2011
Historická
1.11.2012
Historická
1.11.2012
Historická
1.4.2010
Doporučujeme:
