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VDI 3786 BLATT 6 - Environmental meteorology - Meteorological measurements - Turbidity of ground level atmosphere - Meteorological optical range
August 1, 2018 - DIN

For reasons of air quality control, both scientists and official authorities are displaying increasing interest in measuring the turbidity of the atmosphere due to air pollutants. The turbidity characterises the atmospheric content of turbid extinguishing particles and thus the...

ASTM D2035 - Standard Practice for Coagulation-Flocculation Jar Test of Water
March 1, 2019 - ASTM

This practice covers a general procedure for the evaluation of a treatment to reduce dissolved, suspended, colloidal, and nonsettleable matter from water or wastewater by chemical coagulation-flocculation, followed by gravity settling. The procedure may be used to evaluate color, turbidity,...

DS/EN ISO 7027-2 - Water quality – Determination of turbidity – Part 2: Semi-quantitative methods for the assessment of transparency of waters (ISO 7027-2:2019)
February 25, 2019 - DS

This document specifies the following semi-quantitative methods for the assessment of transparency of waters: a) measurement of visual range using the transparency testing tube (applicable to transparent and slightly cloudy water), see Clause 4; b) measurement of visual range in the upper water...

ISO 7027-2 - Water quality - Determination of turbidity - Part 2: Semi-quantitative methods for the assessment of transparency of waters
January 1, 2019 - ISO

This document specifies the following semi-quantitative methods for the assessment of transparency of waters: a) measurement of visual range using the transparency testing tube (applicable to transparent and slightly cloudy water), see Clause 4; b) measurement of visual range in the upper water...

NSF 62 - Drinking Water Distillation Systems
August 13, 2018 - NSF

This Standard establishes minimum materials, design and construction, and performance requirements for point-of-use (POU) and point-of-entry (POE) drinking water distillation systems and the components used in these systems. Distillation systems covered by this standard are designed to reduce...

API STD 19C - Measurement of and Specifications for Proppants Used in Hydraulic Fracturing and Gravel-packing Operations
August 1, 2018 - API

This document provides specifications and standard testing procedures for evaluating proppants used in hydraulic fracturing and gravel-packing operations. The objective of this document is to provide specifications and a consistent methodology for testing performed on hydraulic fracturing and/or...

ASTM D7725 - Standard Test Method for the Continuous Measurement of Turbidity Above 1 Turbidity Unit (TU)
December 15, 2017 - ASTM

This test method covers the on-line and in-line determination of high-level turbidity in water that is greater than 1.0 turbidity units (TU) in municipal, industrial and environmental usage. In principle, there are three basic applications for on-line measurement set ups. This first...

ASTM D6855 - Standard Test Method for Determination of Turbidity Below 5 NTU in Static Mode
November 1, 2017 - ASTM

This test method covers the static determination of turbidity in water (see 4.1). This test method is applicable to the measurement of turbidities under 5.0 nephelometric turbidity units (NTU). This test method was tested on municipal drinking water, ultra-pure water, and low...

NACE TM0399 - Determination of Phosphonate Concentration in Water
April 6, 2018 - NACE

General This standard test method is a colorimetric determination of low concentrations of phosphonate residuals in water from oil and gas production, water injection/disposal, and other industrial applications. This test method is applicable to determination of phosphonate concentrations in the...

ASTM D7315 - Standard Test Method for Determination of Turbidity Above 1 Turbidity Unit (TU) in Static Mode
July 1, 2017 - ASTM

This test method covers the static determination of turbidity in water. Static refers to a sample that is removed from its source and tested in an isolated instrument. This test method is applicable to the measurement of turbidities greater than 1.0 turbidity unit (TU). The...

DS/IEC TR 62697-2 - Test methods for quantitative determination of corrosive sulfur compounds in unused and used insulating liquids – Part 2: Test method for quantitative determination of total corrosive sulfur (TCS)
February 19, 2018 - DS

IEC TR 62697-2:2018(E) specifies a test method for the quantitative determination of total corrosive sulfur (TCS) in unused and used insulating liquids and solid matrices through the conversion of corrosive sulfur species to metal (copper, silver etc.) sulfides. The sulfides formed are...

ASTM D4188 - Standard Practice for Performing Pressure In-Line Coagulation-Flocculation- Filtration Test in Water
December 15, 2017 - ASTM

This practice covers the procedure used to perform pressure in-line coagulation-flocculation-filtration of water and waste water. It is applicable to water and waste water with relatively low suspended solids (<30 mg/L). The practice is applicable for any size filter greater than 100 mm (4 in.) in...

IEC TR 62697-2 - Test methods for quantitative determination of corrosive sulfur compounds in unused and used insulating liquids – Part 2: Test method for quantitative determination of total corrosive sulfur (TCS)
February 1, 2018 - IEC

This part of IEC 62697 specifies a test method for the quantitative determination of total corrosive sulfur (TCS) in unused and used insulating liquids and solid matrices through the conversion of corrosive sulfur species to metal (copper, silver etc.) sulfides. The sulfides formed are...

DIN EN ISO 7027-1 - Water quality - Determination of turbidity - Part 1: Quantitative methods (ISO 7027-1:2016)
November 1, 2016 - DIN

This part of ISO 7027 specifies two quantitative methods using optical turbidimeters or nephelometers for the determination of turbidity of water: a) nephelometry, procedure for measurement of diffuse radiation, applicable to water of low turbidity (for example drinking water); b)...

DS/EN ISO 7027-1 - Water quality – Determination of turbidity – Part 1: Quantitative methods
July 5, 2016 - DS

ISO 7027-1:2016 specifies two quantitative methods using optical turbidimeters or nephelometers for the determination of turbidity of water: a) nephelometry, procedure for measurement of diffuse radiation, applicable to water of low turbidity (for example drinking water); b)...

ISO 7027-1 - Water quality - Determination of turbidity - Part 1: Quantitative methods
June 15, 2016 - ISO

This part of ISO 7027 specifies two quantitative methods using optical turbidimeters or nephelometers for the determination of turbidity of water: a) nephelometry, procedure for measurement of diffuse radiation, applicable to water of low turbidity (for example drinking water); b)...

BS EN ISO 7027-1 - Water quality - Determination of turbidity Part 1: Quantitative methods
July 31, 2016 - BSI
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