Photography — Processing chemicals — Specifications for boric acid, granular
Establishes criteria for the purity and describes the test methods for residue after ignition, heavy metals content, iron content, appearance of solution.
Photography — Processing chemicals — Specifications for anhydrous sodium thiosulfate and sodium thio...
Specifies the purity requirements and describes the test methods for insoluble matter, heavy metals content, iron, alkalinity, acidity, sulfide content, pH value, appearance of solution.
Photography — Processing chemicals — Specifications for glacial acetic acid
Establishes criteria for the purity and describes the test methods for non-volatile matter, heavy metals content, iron content, appearance of solution.
Photography — Processing chemicals — Specifications for anhydrous sodium sulfite
Establishes criteria for the purity and describes the test methods for insoluble matter content, heavy metals content, iron content, alkalinity, reaction to ammoniacal silver nitrate, thiosulfate, appearance of solution.
Expression of performance of gas analyzers - Part 2: Oxygen in gas (utilizing high-temperature elect...
Applies to gas analyzers using high temperature electrochemical sensors for measurement of oxygen in gas. Applies to both 'in situ' and extractive analyzers installed indoors or outdoors.
The contents of the corrigendum of May 1994 have been included in this copy.
Steel and iron — Determination of total silicon content — Gravimetric method
The document specifies a gravimetric method for the determination of the total silicon content in steel and iron. The method is apllicable to silicon contents between 0,10 % (m/m) and 5,0 % (m/m). For samples containing molybdenum, niobium, tantalum, titanium, tungsten, zirconium or high levels of chromium, the result are less precise than for unalloyed steels.
Steel and iron — Determination of sulfur content — Methylene blue spectrophotometric method
The method specified is applicable to sulfur contents between 0,0003 % (m/m) and 0,010 % (m/m). However, niobium, silicon, tantalum and titanium interfere in the determination of sulfur, and application range and test portion masses of the method depend on the concentration of the interfering elements.
