Abstract
Destruction of the organic substances by digestion with a sulpho-nitric mixture and conversion of phosphates to orthophosphates. Formation of a phosphomolybdate. Measurement of the intensity of the blue colour at a wavelength of 825 nm. The method applies to contents up to 5 % (m/m).
General information
-
Status: PublishedPublication date: 1982-12Stage: International Standard confirmed [90.93]
-
Edition: 1Number of pages: 3
-
Technical Committee :ISO/TC 93ICS :67.180.20
- RSS updates
Read sample
Preview this standard in our Online Browsing Plateform (OBP)
Life cycle
Got a question?
Check out our FAQs
Customer care
+41 22 749 08 88
Opening hours:
Monday to Friday - 09:00-12:00, 14:00-17:00 (UTC+1)