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Norma ASTM D7365-09a(2022) 1.5.2022 náhled

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ASTM D7365-09a(2022)

Standard Practice for Sampling, Preservation and Mitigating Interferences in Water Samples for Analysis of Cyanide (Includes all amendments and changes 5/13/2022).

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NORMA vydána dne 1.5.2022

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Informace o normě:

Označení normy: ASTM D7365-09a(2022)
Datum vydání normy: 1.5.2022
Kód zboží: NS-1057596
Počet stran: 11
Přibližná hmotnost: 33 g (0.07 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM

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Kategorie - podobné normy:

Zkoušení chemických substancí vody

Anotace textu normy ASTM D7365-09a(2022) :

Keywords:
available cyanide, cyanide, free cyanide, hydrogen cyanide, interference, preservative, sample collection, total cyanide,, ICS Number Code 13.060.50 (Examination of water for chemical substances)

Doplňující informace

Significance and Use

5.1?Cyanide is routinely analyzed in water samples, often to demonstrate regulatory compliance; however, improper sample collection or pretreatment can result in significant positive or negative bias potentially resulting in unnecessary permit violations or undetected cyanide releases into the environment.

1. Scope

1.1?This practice is applicable for the collection and preservation of water samples for the analysis of cyanide. This practice addresses the mitigation of known interferences prior to the analysis of cyanide. Responsibilities of field sampling personnel and the laboratory are indicated.

1.2?The sampling, preservation and mitigation of interference procedures described in this practice are recommended for the analysis of total cyanide, available cyanide, weak acid dissociable cyanide, and free cyanide by Test Methods D2036, D4282, D4374, D6888, D6994, D7237, D7284, and D7511. The information supplied in this practice can also be applied to other analytical methods for cyanide, for example, EPA Method 335.4.

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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.5?This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

2. Referenced Documents

D7511-12(2017)e1	Standard Test Method for Total Cyanide by Segmented Flow Injection Analysis, In-Line Ultraviolet Digestion and Amperometric Detection (Includes all amendments and changes 7/26/2017).
D6696-16(2023)	Standard Guide for Understanding Cyanide Species
D7237-18	Standard Test Method for Free Cyanide and Aquatic Free Cyanide with Flow Injection Analysis (FIA) Utilizing Gas Diffusion Separation and Amperometric Detection
D2036-09(2022)	Standard Test Methods for Cyanides in Water
D3370-18	Standard Practices for Sampling Water from Flowing Process Streams
D3694-96(2017)	Standard Practices for Preparation of Sample Containers and for Preservation of Organic Constituents
D6994-15	Standard Test Method for Determination of Metal Cyanide Complexes in Wastewater, Surface Water, Groundwater and Drinking Water Using Anion Exchange Chromatography with UV Detection
D1129-13(2020)e2	Standard Terminology Relating to Water (Includes all amendments and changes 2/14/2024).
D1193-06(2018)	Standard Specification for Reagent Water
D3856-11	Standard Guide for Management Systems in Laboratories Engaged in Analysis of Water
D4282-15(2022)	Standard Test Method for Determination of Free Cyanide in Water and Wastewater by Microdiffusion
D4374-06	Standard Test Methods for Cyanides in Water-Automated Methods for Total Cyanide, Weak Acid Dissociable Cyanide, and Thiocyanate (Withdrawn 2013)
D4411-03(2019)	Standard Guide for Sampling Fluvial Sediment in Motion
D4840-99(2018)e1	Standard Guide for Sample Chain-of-Custody Procedures (Includes all amendments and changes 8/22/2018).
D4841-88(2018)	Standard Practice for Estimation of Holding Time for Water Samples Containing Organic and Inorganic Constituents
D5847-22	Standard Practice for Writing Quality Control Specifications for Standard Test Methods for Water Analysis
D6888-16(2023)	Standard Test Method for Available Cyanides with Ligand Displacement and Flow Injection Analysis (FIA) Utilizing Gas Diffusion Separation and Amperometric Detection
D7284-20	Standard Test Method for Total Cyanide in Water by Micro Distillation followed by Flow Injection Analysis with Gas Diffusion Separation and Amperometric Detection

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