Soil quality. Acid-base accounting procedure for acid sulfate soils - Chromium reducible sulfur (CRS) methodology1 Scope This part of ISO 14388 specifies a suite of methods used to determine the net acidity in acid sulfate soils. This part of ISO 14388 specifies a method for measuring chromium reducible sulfur (SCR) by iodimetric titration of distilled hydrogen sulfide trapped as zinc sulfide, following acidic chromous chloride digestion. This method determines inorganic sulfides (e. g. pyrite, marcasite, greigite, mackinawite) and elemental sulfur in acid

Thermoscope bars

4 Environmental Class IV – Outdoor – General

Who BS EN 50377‑18‑1 for

mixed with air under normal atmospheric conditions

The method of this standard applies only to electro-optical X-ray image intensifiers having output radiance decay rates approximately equal to or faster than that of a P-20 phosphor

BS EN 60641-3-1 is the international standard that gives the requirements for pressboard for electrical purposes comprised of 100 % sulphate wood pulp or a mixture of sulphate wood pulp and cotton

All of these standards fall outside the scope of this part of ISO/IEC 13250

Who is DD IEC/TS 61994-4-3 – Piezoelectric and dielectric devices for

Restrictions on mesh-backed mosaics above 3 m

This service specification includes a framework of performance measures that focus on service quality aspects identified as important to the customer

— a definition of a general class of bearings intended to be further extended by reference dictionaries specifying bearings in other International Standards

and with mica paper in its pure state for use in electrical equipment