October 24, 2019 - NPFC

This commercial item description (CID) covers two types of nitrogen: gaseous and liquid. Each type of nitrogen can be obtained in three different technical grades based primarily on nitrogen and oxygen content. Liquid nitrogen is used as a cooling agent for low...

DS/ISO 25475 - Fertilizers – Determination of ammoniacal nitrogen
February 19, 2020 - DS

ISO 25475:2016 specifies a method for the determination of the ammoniacal nitrogen content in fertilizers. The method is applicable to all nitrogenous fertilizers including compound fertilizers, in which nitrogen is found exclusively either in the form of ammonium salts or ammonium...

DS/ISO 15604 - Fertilizers – Determination of different forms of nitrogen in the same sample, containing nitrogen as nitric, ammoniacal, urea and cyanamide nitrogen
May 13, 2020 - DS

ISO 15604:2016 specifies a method for the determination of any one form of nitrogen in the presence of any other form. The method is applicable to any fertilizer provided for in the Regulation (EC) No 2003/2003, Annex I[2] containing nitrogen in various forms.

ASTM D7184 - Standard Test Method for Ultra Low Nitrogen in Aromatic Hydrocarbons by Oxidative Combustion and Reduced Pressure Chemiluminescence Detection
June 1, 2020 - ASTM

This test method covers the determination of total nitrogen in aromatic hydrocarbons, such as benzene, toluene, and xylene. This test method is applicable to samples with nitrogen concentrations up to 1.2 mg/kg. The Limit of Detection (LOD) is 0.04 mg/kg N and the Limit of...

ISO DIS 21820 - Fine ceramics (advanced ceramics, advanced technical ceramics) — Ultraviolet photoluminescence image test method for analyzing polytypes of boron and nitrogen doped SiC crystals
April 10, 2020 - ISO

This document specifies the testing method to determine the polytypes and their ratio in silicon carbide (SiC) wafers or bulk crystals using ultraviolet photoluminescence (UVPL) image test method. The range of SiC is limited to semiconductor SiC into which nitrogen and boron are doped to...

ISO DIS 15901-2 - Pore size distribution and porosity of solid materials by mercury porosimetry and gas adsorption — Part 2: Analysis of nanopores by gas adsorption
June 16, 2020 - ISO

This document describes a method for the evaluation of porosity and pore size distribution by physical adsorption (or physisorption). The method is limited to the determination of the quantity of a gas adsorbed per unit mass of sample as a function of pressure at a controlled, constant temperature...

UOP936 - Combined Nitrogen in LPG including Propylene by Chemiluminescence
January 1, 2020 - ASTM

This method is for determining combined nitrogen in liquefied petroleum gas (LPG), including propylene. The method determines all nitrogen compounds that are extractable by aqueous acid, including ammonia, amines, nitriles and amides. The method is particularly useful for LPG samples...

February 25, 2020 - NPFC

This commercial item description (CID) describes three sizes and two types of skid mounted horizontal storage tank capable of storing and delivering liquid oxygen or liquid nitrogen.

IEC 61788-26 - Superconductivity – Part 26: Critical current measurement – DC critical current of RE-Ba-Cu-O composite superconductors
June 1, 2020 - IEC

This part of IEC 61788 specifies a test method for determining the DC critical current of short RE (rare earth)-Ba-Cu-O (REBCO) composite superconductor specimens that have a shape of straight flat tape. This document applies to test specimens shorter than 300 mm and having a rectangular cross...

ASTM D6522 - Standard Test Method for Determination of Nitrogen Oxides, Carbon Monoxide, and Oxygen Concentrations in Emissions from Natural Gas-Fired Reciprocating Engines, Combustion Turbines, Boilers, and Process Heaters Using Portable Analyzers
June 1, 2020 - ASTM

This test method covers the determination of nitrogen oxides (NO and NO2), carbon monoxide (CO), and oxygen (O2) concentrations in controlled and uncontrolled emissions from natural gas-fired reciprocating engines, combustion turbines, boilers, and process heaters using portable analyzers...

ISO DIS 11901-5 - Tools for pressing — Gas springs — Part 5: Safety instructions for gas springs
March 26, 2020 - ISO

This document describes the safety requirements for gas springs and the correct installation instructions for nitrogen gas springs for use in stamping dies. The other parts of ISO 11901 describe the different designs in detail and are to be observed respectively. The instructions and...

JIS K 8826 - Sodium hydroxide for nitrogen compounds analysis (Reagent)
February 20, 2020 - JSA
A description is not available for this item.
ISO FDIS 21793 - Water quality — Determination of total organic carbon (TOC), dissolved organic carbon (DOC), total bound nitrogen (TNb), dissolved bound nitrogen (DNb), total bound phosphorus (TPb) and dissolved bound phosphorus (DPb) after wet chemical catalysed ozone hydroxyl radical oxidation (COHR)
March 10, 2020 - ISO

This document specifies a multi‑parameter method for the determination of total organic carbon (TOC), total nitrogen (TNb) and total phosphorus (TP) in drinking water, raw water, ground water, surface water, sea water, saline water, process water, domestic and industrial wastewater, after a...

ISO DIS 23431 - Measurement of road tunnel air quality
April 9, 2020 - ISO

This Standard describes methods for determining air speed and flow direction, carbon monoxide (CO), nitric oxide (NO) and nitrogen dioxide (NO2) concentrations and visibility in road tunnels using direct-reading instruments. This Standard specifically excludes requirements relating to...

ASTM B923 - Standard Test Method for Metal Powder Skeletal Density by Helium or Nitrogen Pycnometry
May 1, 2020 - ASTM

This test method covers determination of skeletal density of metal powders. The test method specifies general procedures that are applicable to many commercial pycnometry instruments. The method provides specific sample outgassing procedures for listed materials. It includes additional general...

The Handbook of Natural Resources Volume VI - Atmosphere and Climate
June 10, 2020 - CRC

Authored by world-class scientists and scholars, The Handbook of Natural Resources, Second Edition, is an excellent reference for understanding the consequences of changing natural resources to the degradation of ecological integrity and the sustainability of life. Based on the content of the...

ISO DIS 4589-4 - Plastics — Determination of burning behaviour by oxygen index — Part 4: High gas velocity test
April 17, 2020 - ISO

This part of ISO 4589 specifies a test method for determining the minimum volume fraction of oxygen, in admixture with nitrogen, at ambient temperature, that will support combustion of small vertical sheet test specimen under a specified gas velocity that is higher than that specified in...

SAE AMS2767 - Uphill Quenching of Aluminum Alloy Product
May 1, 2020 - SAE

This specification establishes engineering requirements for the uphill quenching process. Uphill quenching immerses product in liquid nitrogen followed by exposure to a high pressure/velocity steam blast or boiling water. Application These processes are applicable to both wrought and cast...

ISO DIS 22863-10 - Fireworks — Test methods for determination of specific chemical substances — Part 10: Nitrogen content in nitrocellulose by Iron(II) sulfate titration
December 10, 2019 - ISO

This International Standard specifies the method for determination of the nitrogen content in nitrocellulose within pyrotechnic compositions of fireworks by Iron(II) sulphate titration.

ISO DIS 21663 - Solid recovered fuels — Methods for the determination of carbon (C), hydrogen (H), nitrogen (N) and sulphur (S) by the instrumental method
December 31, 2019 - ISO

This document specifies a method for the determination of total content of carbon, hydrogen, nitrogen and sulfur in solid recovered fuels by instrumental method. Depending on the amount of test portion, micro or macro instrumental apparatus are used. This method is applicable for...