ISO/R 852:1968
$12.35
Sodium tripolyphosphate and sodium pyrophosphate for industrial use — Determination of iron content — 2,2′- Bipyridyl spectrophotometric method
| Published By | Publication Date | Number of Pages |
| ISO | 1968-10 | 6 |
Applicable to products having Fe contents of more than 0.001 % (m/m). Preliminary hydrolysis of polyphophates by prolonged boiling in the presence of hydrochloric acid. Reduction of iron(III) by means of hydroxylammonium chloride. Formation of the iron(II)-2,2'-dipyridyl complex in the presence of ammonium acetate at pH of 3.1 and a temperature of 75 °C (under the test conditions the phosphate ions do not interfere). Spectrophotometric measurement of the coloured complex at a wavelength of about 522 nm.
Related products
-
IEEE ISO IEC 8802 3 2014
ISO/IEC/IEEE International Standard for Ethernet Published By Publication Date Number of Pages IEEE 2014 3754
-
BS EN 61097-1:2007
Global maritime distress and safety system (GMDSS) – Radar transponder. Marine search and rescue (SART).…
-
IEEE 802.3-2008
IEEE Standard for Information technology–Telecommunications and information exchange between systems–Local and metropolitan area networks–Specific requirements…
-
BSI PAS 43:2008
Safe Working of Vehicle Breakdown, Recovery and Removal Operations. Management System Specification Published By Publication…
-
BS EN ISO 2360:2017
Non-conductive coatings on non-magnetic electrically conductive base metals. Measurement of coating thickness. Amplitude-sensitive eddy-current method…
-
BS 4427-1:1969
Methods of test for sodium tripolyphosphate (pentasodium triphosphate) and sodium pyrophosphate (tetrasodium pyrophosphate) for industrial…
-
ICC UniformBuildingCode Vol2 1997
Uniform Building Code – Volume 2 Published By Publication Date Number of Pages ICC 1997…
-
Chicago Building Code Title 14B – with April 2022 Supplement:2019 Edition
Chicago Building Code Title 14B – with April 2022 Supplement Published By Publication Date Number…
-
BSI PAS 43:2006
Safe working of vehicle breakdown, recovery and removal operations. Management system specification Published By Publication…
-
IEEE 802.3-2018(Redline)
IEEE Standard for Ethernet (Redline) Published By Publication Date Number of Pages IEEE 2018
-
ISO 913:1977
Sulphuric acid and oleum for industrial use — Determination of ash — Gravimetric method Published…
-
BS 4427-4:1969
Methods of test for sodium tripolyphosphate (pentasodium triphosphate) and sodium pyrophosphate (tetrasodium pyrophosphate) for industrial…
-
ISO 802:1976
Aluminium oxide primarily used for the production of aluminium — Preparation and storage of test…
-
IEEE 802.1Q-2018
IEEE Standard for Local and Metropolitan Area Networks—Bridges and Bridged Networks (Superseded Redline) Published By…
-
BS EN IEC 61158-6-10:2019 – TC:2020 Edition
Tracked Changes. Industrial communication networks. Fieldbus specifications – Application layer protocol specification. Type 10 elements…
-
IEC 61097-1:2007
Global maritime distress and safety system (GMDSS) – Part 1: Radar transponder – Marine search…
-
ISO 858:1973
Fishing nets — Designation of netting yarns in the Tex System Published By Publication Date…
-
BS EN 60603-2:1998:2006 Edition
Connectors for frequencies below 3 MHz for use with printed boards – Detail specification for…
-
BS 4427-3:1989
Methods of test for sodium tripolyphosphate (pentasodium triphosphate) and sodium pyrophosphate (tetrasodium pyrophosphate) for industrial…
-
IEEE 802.3 2018
IEEE Standard for Ethernet Published By Publication Date Number of Pages IEEE 2018
-
BICSI TDMM 15 v1 2024
BICSI Telecommunications Distribution Methods Manual (TDMM), 15th Edition Published By Publication Date Number of Pages…
-
BS 4442-1:1969
Specification for lathe spindle noses and faceplates. – Types ‘A’ and ‘Camlock’ Published By Publication…
-
BS 4183:1967
Specification for machine screws and machine screw nuts. Metric series Published By Publication Date Number…
-
IEEE 8802-3-2014
ISO/IEC/IEEE International Standard for Ethernet Published By Publication Date Number of Pages IEEE 2014 3754
-
BS 4427-2:1969
Methods of test for sodium tripolyphosphate (pentasodium triphosphate) and sodium pyrophosphate (tetrasodium pyrophosphate) for industrial…
-
ASHRAE Fundamentals Handbook IP 2013
2013 ASHRAE Handbook – Fundamentals – IP Edition Published By Publication Date Number of Pages…
-
BS EN 1992-1-1:2023
Eurocode 2. Design of concrete structures – General rules and rules for buildings, bridges and…
-
ASHRAE Refrigeration Handbook IP 2014
ASHRAE Handbook – Refrigeration (I-P) Published By Publication Date Number of Pages ASHRAE 2014 761
-
ASHRAE Fundamentals Handbook IP 2013
2013 ASHRAE Handbook – Fundamentals – IP Edition Published By Publication Date Number of Pages…
-
IEEE 802.1Q-2018(Redline)
IEEE Standard for Local and Metropolitan Area Networks—Bridges and Bridged Networks (Redline) Published By Publication…
-
IEEE 802.3-2018
IEEE Standard for Ethernet (Superseded Redline) Published By Publication Date Number of Pages IEEE 2018…
-
ISO 850:1976
Sodium tripolyphosphate for industrial use — Determination of matter insoluble in water Published By Publication…
-
IEEE 8802-3-2014
ISO/IEC/IEEE International Standard for Ethernet Published By Publication Date Number of Pages IEEE 2014 3754
-
ISO 853:1976
Sodium tripolyphosphate and sodium pyrophosphate for industrial use — Determination of loss on ignition Published…
-
ASCE 9780784476352 2012
Earthquakes and Engineers – An International History Published By Publication Date Number of Pages ASCE…
-
ASHRAE Handbook Refrigeration 10:2010 Edition
2010 ASHRAE Handbook Refrigeration (I-P) Published By Publication Date Number of Pages ASHRAE 2010 701
-
IEEE 802.1Q-2018(Redline)
IEEE Standard for Local and Metropolitan Area Networks—Bridges and Bridged Networks (Redline) Published By Publication…
-
BS 903-A25:1968:1973 Edition
Methods of testing vulcanized rubber. – Determination of impact brittleness temperature Published By Publication Date…
-
IEEE 802.3-2018
IEEE Standard for Ethernet (Superseded Redline) Published By Publication Date Number of Pages IEEE 2018
-
ASHRAE Refrigeration Handbook SI 2014
ASHRAE Handbook – Refrigeration (SI) Published By Publication Date Number of Pages ASHRAE 2014 757
