ISO 2272:1989
$13.00
Surface active agents — Soaps — Determination of low contents of free glycerol by molecular absorption spectrometry
| Published By | Publication Date | Number of Pages |
| ISO | 1989-07 | 6 |
The determination is carried out in the following way: Decomposition of the soap by sulfuric acid and extraction of the fatty acida with light petroleum. Oxidation of the free glycerol remaining in the aqueous phase by periodic acid to formic acid and formaldehyde. On reaction with chromotropic acid, the aldehyde formed gives an absorbing compound whose absorbance is propotional to the free glycerol content. Spectrometric measurement of the absorbance at a wavelength about 571 mm.
Related products
-
BSI DD 105:1985
Open Systems Interconnection: job transfer and manipulation concepts and services (ISO DP 8831) Published By…
-
BS 6670-2:1986
Methods of test for electroplated gold and gold alloy coatings – Environmental tests Published By…
-
BS 7081-2:1989
Guide to construction and use of 6.30 mm (0.25 in) magnetic tape cartridge for data…
-
BS ISO 3272-5:1999
Microfilming of technical drawings and other drawing office documents – Test procedures for diazo duplicating…
-
BS A 344:1999
Nuts, anchor, self-locking, fixed, single lug, reduced series, with counterbore, with MJ threads, classifications: 1100…
-
ISO 272:1982
Éléments de fixation — Produits hexagonaux — Dimensions des surplats Published By Publication Date Number…
-
BS 4826-7:1986
Complete, filled transport packages – Methods for determination of resistance to compression Published By Publication…
-
BS AU 227:1988
Specification for dimensions of cylindrical shaft ends and hubs for alternators for commercial vehicles and…
-
BS 6057-3.15:1989
Rubber latices. Methods of test – Determination of volatile unsaturates content of styrene-butadiene rubber latices…
-
BS 2772-2:1989
Colliery haulage and winding equipment – Specification for wrought steel Published By Publication Date Number…
-
BS 3762-3.1:1990
Analysis of formulated detergents – Quantitative test methods – Method for determination of anionic-active matter…
-
BS ISO 68-2:1998:1999 Edition
ISO general purpose screw threads. Basic profile – Inch screw threads Published By Publication Date…
-
BS 6856:1987
Specification for code extension techniques for United Kingdom 7-bit and 8-bit coded character sets Published…
-
BS EN ISO 27874:2008
Metallic coatings. Electrodeposited gold and gold alloy coatings for electrical, electronic and engineering purposes. Specification…
-
ISO 8272:1985
Blocs-portes — Essai de perméabilité à l’air Published By Publication Date Number of Pages ISO…
-
BS ISO/IEC 10026-5:1998:1999 Edition
Information technology. Open systems interconnection. Distributed transaction processing – Application context proforma and guidelines when…
-
ISO 2072:1981
Aluminium oxide primarily used for the production of aluminium — Determination of zinc content —…
-
ISO 2270:1989
Non-ionic surface active agents — Polyethoxylated derivatives — Iodometric determination of oxyethylene groups Published By…
-
ISO 2252:1983
Rubber footwear, lined industrial, for use at low temperatures Published By Publication Date Number of…
-
BS A 330:1999
Nuts, anchor, self-locking, floating, two lug, with incremental counterbore, with MJ threads, classifications: 900 MPa…
-
BS 903-A55:1989
Physical testing of rubber – Methods for assessment of changes in properties after exposure to…
-
BS 5752-9:1986
Methods of test for coffee and coffee products – Instant coffee: determination of insoluble matter…
-
ISO 2172:1983
Fruit juice — Determination of soluble solids content — Pycnometric method Published By Publication Date…
-
ISO 2972:1979
Commande numérique des machines — Symboles Published By Publication Date Number of Pages ISO 1979-08…
-
ASHRAE Fundamentals Handbook IP 2013
2013 ASHRAE Handbook – Fundamentals – IP Edition Published By Publication Date Number of Pages…
-
BS 684-2-2.41:1987
Methods of analysis of fats and fatty oils. Other methods – Determination of erucic acid…
-
BS 4929-1:1973
Specification for steel hexagon prevailing-torque type nuts – Metric series Published By Publication Date Number…
-
ISO 2262:1984
General purpose thimbles for use with steel wire ropes — Specification Published By Publication Date…
-
BS 6829-4.3:1990
Analysis of surface active agents (raw materials). Ethylene oxide adducts – Method for determination of…
-
ISO 2271:1989
Surface active agents — Detergents — Determination of anionic-active matter by manual or mechanical direct…
-
BS EN 22872:1993
Complete, filled transport packages. Method for determination of resistance to compression Published By Publication Date…
-
ISO 3272-5:1999
Microfilming of technical drawings and other drawing office documents — Part 5: Test procedures for…
-
AS 1203.1:1996
Microfilming of engineering documents – Operating procedures Published By Publication Date Number of Pages AS…
-
BS 2472-3:1989
Methods for chemical analysis of ice cream – Determination of fat content Published By Publication…
-
ISO 2572:1982
Textile machinery and accessories — Card gauges Published By Publication Date Number of Pages ISO…
-
BS ISO/IEC 15771:1998:1999 Edition
Information technology. Telecommunications and information exchange between systems. Private integrated services network. Specification, functional model…
-
ISO 5272:1979
Toluène à usage industriel — Spécifications Published By Publication Date Number of Pages ISO 1979-02…
-
BS 5495:1980:1992 Edition
Specification for laboratory evaluations of roll-over and falling-object protective structures: the deflection-limiting volume for earth-moving…
-
BS ISO 6394:1998:1999 Edition
Acoustics. Measurement at the operator’s position of noise emitted by earth-moving machinery. Stationary test conditions…
-
BS EN 12373-6:1999
Aluminium and aluminium alloys. Anodizing – Assessment of quality of sealed anodic oxidation coatings by…
