Qualification test method for rating chemical stability of aviation and automotive gasolines

1976 ◽  
Vol 12 (5) ◽  
pp. 391-393
Author(s):  
V. S. Azev ◽  
I. V. Malysheva ◽  
S. R. Lebedev ◽  
L. N. Kuznetsova ◽  
L. N. Savin ◽  
...  
Keyword(s):  
Chemical Stability ◽  
Test Method ◽  
Qualification Test ◽  
Qualification Test Method

Qualification test method for rating antiwear properties of motor oils in cam/lifter unit

1976 ◽  
Vol 12 (8) ◽  
pp. 633-636
Author(s):  
B. M. Bunakov ◽  
M. A. Grigor'ev ◽  
V. S. Zavel'skii ◽  
B. M. Kogan
Keyword(s):  
Test Method ◽  
Qualification Test ◽  
Qualification Test Method ◽  
Antiwear Properties ◽  
Motor Oils

Qualification test method for rating viscosity stability of lube oils and specialty fluids

1976 ◽  
Vol 12 (3) ◽  
pp. 236-239
Author(s):  
P. P. Zaskal'ko ◽  
A. A. Bratkov ◽  
S. �. Krein ◽  
Yu. E. Raskin
Keyword(s):  
Test Method ◽  
Qualification Test ◽  
Qualification Test Method ◽  
Viscosity Stability

Qualification and Certification of Polyester Rope for Seabed Contact

2017 ◽  
Author(s):  
Øystein Gabrielsen ◽  
Kjell Larsen
Keyword(s):  
Water Flow ◽  
Water Depth ◽  
Test Method ◽  
Mooring System ◽  
Qualification Test ◽  
Mooring Lines ◽  
Norwegian Sea ◽  
Flow Through ◽  
Full Scale Tests ◽  
Certification Requirements

The Aasta Hansteen spar in the Norwegian Sea is designed to be moored with a taut polyester rope mooring system. The water depth at the field is 1300 meters, and due to the short installation season the most efficient hookup is with pre-installed mooring lines, which require the mooring lines to be laid down on the seabed. DNV certification does not allow seabed contact for polyester ropes unless proven that no soil ingress and damage takes place. To be able to certify the ropes Statoil developed a test method including contact with soil, rope movement and forced water flow through the filter construction. Full scale tests were performed with actual rope and Aasta Hansteen soil, both in laboratory and at site. This paper discusses the certification requirements and presents adequate qualification test together with results from testing.

Study on Surface Modification of Micaceous Iron Oxide

2016 ◽  
Vol 852 ◽  
pp. 14-21
Author(s):  
Hong Bin Qi ◽  
Da Wei Liu ◽  
Huan Li
Keyword(s):  
Titanium Dioxide ◽  
Surface Modification ◽  
Iron Oxide ◽  
Chemical Stability ◽  
Preliminary Test ◽  
Ultraviolet Absorption ◽  
Test Method ◽  
Optimum Conditions ◽  
Thermal And Chemical Stability

Micaceous iron oxide is a mica-like structure α-Fe2O3. As anti-rot material, micaceous iron oxide, holding the performance of good thermal and chemical stability, high covering capacity and strong ultraviolet absorption, is widely used in based pearlescent pigments. This paper introduces the preliminary test method of how to prepare pearlescent pigments from covering titanium dioxide over micaceous iron oxide, by the analysis technology of SEM and EDS, and finally find the Optimum conditions.

scholarly journals APPLICATION OF THE PHREEQC PROGRAM TO ASSESS THE CHEMICAL STABILITY OF TAP WATER IN KIELCE

2020 ◽  
Vol 12 (1) ◽  
pp. 41-45
Author(s):  
MONIKA METRYKA-TELKA ◽  
ROBERT KOWALIK ◽  
JAROSŁAW GAWDZIK ◽  
BARBARA GAWDZIK ◽  
ALICJA GAWDZIK
Keyword(s):  
Chemical Stability ◽  
Tap Water ◽  
Test Method ◽  
Ionic Balance ◽  
Water Test ◽  
Stability Indices

The research was conducted on samples of water in Kielce from two intakes: Białogon and Zagnańsk. The results of selected indicators for these waters were presented, among others, the most important ones influencing its chemical stability i.e. calcium or magnesium. Then, using the PHREEQC program, stability indices were calculated for water in Kielce from the two shots in question. In the next stage, the correctness of the water test method was checked by means of a program through the ionic balance of the water and comparison of pH of the water determined with the value determined by calculation. For the above mentioned activities, tables and calculations were prepared on the basis of which appropriate conclusions were made.

scholarly journals Determination of chemical stability of propellants using the vacuum stability test method

2016 ◽  
Vol 66 (1) ◽  
pp. 18-22 ◽  
Author(s):  
Bojana Fidanovski ◽  
Mirjana Dimic ◽  
Aleksandar Milojkovic ◽  
Vesna Rodic
Keyword(s):  
Chemical Stability ◽  
Test Method ◽  
Stability Test ◽  
Vacuum Stability ◽  
Vacuum Stability Test
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