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ISO 20921 - Textiles - Determination of stable nitrogen isotope ratio in cotton fibres
February 1, 2019 - ISO

This document specifies the determination of the ratio of nitrogen isotopes in cotton fibres that are used for textile production. It applies not only to cotton textiles but also to raw cotton taken from cotton fields.

ASTM D3608 - Standard Test Method for Nitrogen Oxides (Combined) Content in the Atmosphere by the Griess-Saltzman Reaction
March 1, 2019 - ASTM

This test method covers the manual determination of the combined nitrogen dioxide (NO2) and nitric oxide (NO) content, total NOx; in the atmosphere in the range from 4 to 10 000 μg/m3 (0.002 to 5 ppm (v)). The maximum sampling period is 60 min at a flow rate of 0.4 L/min. The values stated...

ISO 4945 - Steel - Determination of nitrogen - Spectrophotometric method
October 1, 2018 - ISO

This document specifies a spectrophotometric method for the determination of nitrogen in steel. The method is applicable to the determination of nitrogen mass fraction between 0,000 6 % and 0,050 % in low alloy steels and between 0,010 % and 0,050 % in high alloy steels. The method...

DS/ISO 5832-9 - Implants for surgery – Metallic materials – Part 9: Wrought high nitrogen stainless steel
February 12, 2019 - DS

This document specifies the characteristics of, and corresponding test methods for, wrought stainless steel containing a mass fraction of 0,25 % to 0,50 % nitrogen for use in the manufacture of surgical implants for which high levels of strength and corrosion resistance are required. NOTE 1...

ISO 5832-9 - Implants for surgery - Metallic materials - Part 9: Wrought high nitrogen stainless steel
February 1, 2019 - ISO

This document specifies the characteristics of, and corresponding test methods for, wrought stainless steel containing a mass fraction of 0,25 % to 0,50 % nitrogen for use in the manufacture of surgical implants for which high levels of strength and corrosion resistance are required. NOTE 1...

Photo-Activated Sludge: A Novel Algal-Bacterial Biotreatment for Nitrogen Removal from Wastewater
January 4, 2019 - CRC

Nitrogen rich wastewaters (10-400 mg N L-1) are usually produced by municipal, industrial and agricultural wastes, such as effluents from anaerobic treatments. These represent a risk to the environment due to the high nutrient concentrations (nitrogen and phosphorous), which can cause...

BS ISO 20921 - Textiles — Determination of stable nitrogen isotope ratio in cotton fibres
February 28, 2019 - BSI
A description is not available for this item.
BS EN ISO 4945 - Steel - Determination of nitrogen - Spectrophotometric method
December 31, 2018 - BSI
A description is not available for this item.
JIS K 0170-3 - Testing methods for water quality by flow analysis - Part 3: Total nitrogen
March 20, 2019 - JSA
A description is not available for this item.
JIS K 0170-1 - Testing methods for water quality by flow analysis - Part 1: Ammonium nitrogen
March 20, 2019 - JSA
A description is not available for this item.
GMW17984 - Nitrogen Leak Tests for Engine Combustion Sealing Integrity
February 1, 2019 - GMW
A description is not available for this item.
DS/ISO 20088-3 - Determination of the resistance to cryogenic spillage of insulation materials – Part 3: Jet release
February 13, 2019 - DS

This document describes a method for determining the resistance of a cryogenic spill protection (CSP) system to a cryogenic jet as a result of a pressurized release which does not result in immersion conditions. It is applicable where CSP systems are installed on carbon steel and will be in contact...

IEC 60480 - Specifications for the re-use of sulphur hexafluoride (SF6) and its mixtures in electrical equipment
April 1, 2019 - IEC

This document provides criteria for the re-use of sulphur hexafluoride (SF6) and its mixtures after recovery and reclaiming from electrical equipment (e.g. for maintenance, at the end-of-life). Sulphur hexafluoride (SF6), nitrogen (N2) and carbon tetrafluoride (CF4), are gases commonly used...

ISO DIS 22031 - Sampling and test method for cleanable filter media taken from filters of systems in operation
April 5, 2019 - ISO

This International Standard specifies the sampling method of fabric filter media from filter system in operation and test method thereof to evaluate the degradation of filter media for dry type filtering dust collector (hereafter referred to as "bag filters") used in thermal power plants, municipal...

DIN EN ISO 4945 - Steel - Determination of nitrogen - Spectrophotometric method (ISO 4945:2018); German version EN ISO 4945:2018
March 1, 2019 - DIN

Dieses Dokument legt ein spektralphotometrisches Verfahren zur Bestimmung des Stickstoffgehalts in Stahl fest. Das Verfahren ist für die Bestimmung von Massenanteilen von Stickstoff zwischen 0,000 6 % und 0,050 % in niedriglegierten Stählen und zwischen 0,010 % und 0,050 % in hochlegierten Stählen...

BS ISO 5832-9 - Implants for surgery - Metallic materials Part 9: Wrought high nitrogen stainless steel
February 28, 2019 - BSI
A description is not available for this item.
ISO 22241-1 - Diesel engines - NOx reduction agent AUS 32 - Part 1: Quality requirements
February 1, 2019 - ISO

This document specifies the quality characteristics of the NOx reduction agent AUS 32 (aqueous urea solution) which is needed to operate selective catalytic reduction (SCR) converter systems in motor vehicles with diesel engines. SCR converter systems are particularly suitable for selectively...

ISO 21814 - Fine ceramics (advanced ceramics, advanced technical ceramics) - Methods for chemical analysis of aluminium nitride powders
February 1, 2019 - ISO

This document specifies methods for the chemical analysis of fine aluminium nitride powders used as the raw material for fine ceramics. This document stipulates the determination methods of the aluminium, total nitrogen, boron, calcium, copper, iron, magnesium, manganese, molybdenum, nickel,...

ISO 21813 - Fine ceramics (advanced ceramics, advanced technical ceramics) — Methods for chemical analysis of high purity barium titanate powders
February 1, 2019 - ISO

This document specifies methods for the chemical analysis of fine high purity barium titanate powders used as the raw material for fine ceramics. This document stipulates the determination methods of the barium, titanium, aluminium, cadmium, calcium, cobalt, dysprosium, iron, lead, magnesium,...

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