ISO 7058:1983
$12.35
Phosphoric acid for industrial use — Determination of higher soluble sulfate contents — Titrimetric method after reduction
| Published By | Publication Date | Number of Pages |
| ISO | 1983-10 | 6 |
The sulphate present in a test portion is reduced to sulphide by a mixture of hydriodic and phosphinic (hypophosphorous) acids. The hydrogen sulphide evolved is absorbed in an excess of cadmium acetate solution. The cadmium sulphide formed is oxidized by an excess of standard volumetric potassium iodate/iodide solsution, and the excess iodine is titrated with standard volumetric sodium thiosulphate solution, using starch as indicator. The method is applicable to products having sulphate contents between 0.2 and 6 % (m/m).
Related products
-
ISO 7558:1988
Guide to the prepacking of fruits and vegetables Published By Publication Date Number of Pages…
-
BS 6958-2:1988
Guide to construction and use of 90 mm (3.5 in) flexible disk cartridges for data…
-
ISO 7059:1982
Caprolactam for industrial use — Determination of absorbance at a wavelength of 290 nm Published…
-
ISO 7508:1985
Unplasticized polyvinyl chloride (PVC-U) valves for pipes under pressure — Basic dimensions — Metric series…
-
BS 5728-5:1988
Measurement of flow of cold potable water in closed conduits – Specification for installation requirements…
-
BS 6068-2.8:1984
Water quality. Physical, chemical and biochemical methods – Determination of calcium content: EDTA titrimetric method…
-
ISO 7088:1981
Fish-meal — Vocabulary Published By Publication Date Number of Pages ISO 1981-10 5
-
BS EN ISO 15065:2005
Countersinks for countersunk head screws with head configuration in accordance with ISO 7721 Published By…
-
BS 4058:1987
Specification for data processing flow chart symbols, rules and conventions Published By Publication Date Number…
-
BS 6953:1988
Glossary of terms for procedures for setting out, measurement and surveying in building construction (including…
-
ISO 7258:1984
Tubes en polytétrafluoréthylène (PTFE) à usage aéronautique — Méthodes de détermination de la masse volumique…
-
BS 5265-3:1984
Mechanical balancing of rotating bodies – Recommendations for criteria for evaluating flexible rotor balance Published…
-
BS 7023-1:1988:1989 Edition
Guide to construction and use of 130 mm (5.25 in) flexible disk cartridges for data…
-
ISO 7078:1985
Construction immobilière — Procédés pour l’implantation, le mesurage et la topométrie — Vocabulaire et notes…
-
BS 7054:1989
Method for shear testing of pins and grooved pins Published By Publication Date Number of…
-
ISO 15065:2005
Countersinks for countersunk head screws with head configuration in accordance with ISO 7721 Published By…
-
ISO 7958:1987
Woodworking machines — Single blade stroke circular sawing machines for lengthwise cutting of solid woods…
-
BS 7038:1988
Specification for rubber coolant hoses and tubing for use on private cars and light commercial…
-
ISO 7658:1984
Pipework — Stripwound flexible metal hoses — Testing and verification of characteristics Published By Publication…
-
BS 7098:1989
Method of formatting inter-bank telexes for messages relating to the transfer of funds or other…
-
ISO 7008:1983
Woodworking machines — Single blade circular saw benches with or without travelling table — Nomenclature…
-
ISO 8449:1995
Pipework — Single overlap flexible metal hoses (with packing, limited tightness, circular or polygonal section,…
-
BS 4361-5:1988
Woodworking machines – Specification for single blade circular saw benches with or without travelling table…
-
BS EN ISO 7051:1995
Specification for cross-recessed raised countersunk (oval) head tapping screws Published By Publication Date Number of…
-
BS 6057-3.7:1995
Rubber latices. Methods of test – Determination of density of natural rubber latices Published By…
-
BS 7024-3:1988:1989 Edition
Guide to construction and use of 130 mm (5.25 in) flexible disk cartridges for data…
-
BS 5728-4:1986
Measurement of flow of cold potable water in closed conduits – Specification for combination meters…
-
ISO 7056:1981
Matériel de laboratoire en plastique — Béchers Published By Publication Date Number of Pages ISO…
-
BS 5265-2:1981
Mechanical balancing of rotating bodies – Methods for the mechanical balancing of flexible rotors Published…
-
BS 7508:1995
Mechanical vibration. Methods and criteria for the mechanical balancing of flexible rotors Published By Publication…
-
BS 7023-3:1988:1989 Edition
Guide to construction and use of 130 mm (5.25 in) flexible disk cartridges for data…
-
BS 5728-6:1993
Measurement of flow of cold potable water in closed conduits – Test methods for combination…
-
ISO 7758:1984
Wrought copper and copper alloys — Drawn square bars — Symmetric plus and minus tolerances…
-
BS EN ISO 7050:1995
Specification for cross-recessed countersunk (flat) head tapping screws (common head style) Published By Publication Date…
-
BS 4058:1987
Specification for data processing flow chart symbols, rules and conventions Published By Publication Date Number…
-
BS 4361-18:1989
Woodworking machines – Specification for single blade stroke circular sawing machines for lengthwise cutting of…
-
ISO 6596-2:1985
Traitement de l’information — Échange de données sur cartouches à disquette de 130 mm (5.25…
-
BS EN 28749:1992
Pins and grooved pins. Shear test Published By Publication Date Number of Pages BSI 1992…
-
ISO 8860-1:1987
Traitement de l’information — Échange de données sur cartouches à disquette de 90 mm (3.5…
-
ISO 6058:1984
Water quality — Determination of calcium content — EDTA titrimetric method Published By Publication Date…
