Nitrogen Gas Safety Standards

This European Standard 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...

This European Standard specifies a method for the determination of cyanamide nitrogen in fertilizers. The method is applicable to calcium cyanamide and calcium cyanamide/nitrate mixtures.

This European Standard specifies a method for the determination of total nitrogen in urea. This method is applied exclusively to urea fertilizers which are nitrate free.

1.1 This guide covers recommended procedures for maintaining and handling hazardous biological materials at liquid nitrogen temperatures. 1.2 This guide covers the safety precautions recommended when handling material stored in liquid nitrogen. 1.3 This guide does not cover the...

This European Standard specifies a method for the determination of nitrate and ammoniacal nitrogen with reduction using Devarda alloy (modified for each of the variants a, b and c). The method is applicable to all nitrogenous fertilizers, including compound fertilizers, in which...

1.1 This guide covers recommended procedures for maintaining and handling hazardous biological materials at liquid nitrogen temperatures. 1.2 This guide covers the safety precautions recommended when handling material stored in liquid nitrogen. 1.3 This guide does not cover the...

1.1 This guide covers recommended procedures for maintaining and handling hazardous biological materials at liquid nitrogen temperatures. 1.2 This guide covers the safety precautions recommended when handling material stored in liquid nitrogen. 1.3 This guide does not cover the...

This guide covers recommended procedures for maintaining and handling hazardous biological materials at liquid nitrogen temperatures. This guide covers the safety precautions recommended when handling material stored in liquid nitrogen. This guide does not cover the maintenance...

1.1 This guide covers recommended procedures for maintaining and handling hazardous biological materials at liquid nitrogen temperatures. 1.2 This guide covers the safety precautions recommended when handling material stored in liquid nitrogen. 1.3 This guide does not cover the...

Characteristics of, and test methods for, wrought stainless steel containing 0.25% to 0.5% nitrogen.

This standard specifies a method for the determination of nitrogen in soil improvers and growing media. The Kjeldahl method determines ammonium-N, nitrate-n, nitrite-N and organic N content of soil improvers and growing media. Nitrogen in N-N-linkages, N-O-linkages and some...

This standard specifies a method for the determination of nitrogen in soil improvers and growing media. The dry combustion method was developed originally as a manual method by Dumas. Its application is improved greatly due to the use of modern automated equipment and is applicable to all...

This part of ISO 5983 specifies a method for the determination of nitrogen content of animal feeding stuffs according to the Kjeldahl method, and a method for the calculation of the crude protein content. It is suitable for use as a semi-micro rapid routine method using block digestion,...

Does not distinguish between protein nitrogen and non-protein nitrogen.

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...

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...

This document specifies two different methods (Methods A and B) for the determination of the total nitrogen content in fertilizers. Method A specifies the titrimetric method after distillation according to ISO 5315:1984 [2]. Method B specifies a method by reduction of nitrate with iron and...

1.1 This specification covers the chemical, mechanical, and metallurgical requirements for wrought nitrogen strengthened 21chromium-10nickel-3manganese-2.5molybdenum stainless steel alloy bar for surgical implants. 1.2 The values stated in inch-pound units are to be regarded as standard. The...

1.1 This specification covers the chemical, mechanical, and metallurgical requirements for wrought nitrogen strengthened 21chromium-10nickel-3manganese-2.5molybdenum stainless steel alloy bar for surgical implants. 1.2 The values stated in either inch-pound units or SI units are to be...

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...