Products > Test Analysers to International Test Methods > Oxidation Stability Tester - Induction Period Models NPI 440 & NPI 442 - NORMALAB

ASTM D 525 - ASTM D 873 - ISO EN 7536 - IP 40 - IP 138 -
DIN 51780 - DIN 51799

SCOPE:

This test method covers the determination of the stability of gasoline under accelerated oxidation conditions. The break point or the induction period may be used as an indication of the tendency of motor gasoline to for gum during storage.

4-unit Induction period & potential gums tester- model NPI 442

Dry bath version: 4 positions with a perfect technical correlation to the above standards. Low maintenance and easy cleaning.

ALTERNATIVE: NL 40900

2-unit automatic Potential gums & Induction period testermodel NPI 440 -
Liquid Bath version: 2 positions strictly in accordance with above mentioned methods and with cooling coil to reduce evaporation

MAIN CHARACTERISTICS: (FOR THE 2 MODELS)

Test temperature range : Ambient to 120°C
Computerized and fully automated test
Tracking of pressure, pressure drop and break-point on printer or PC
Direct pressure measurement in the vessel
Data Storage : 200 results
Quick access to calibration parameters
Auto diagnostic
Quick coupling
Safety thermostat to prevent from overheating
Overpressure safety by burst disc

SUPERVISOR SOFTWARE:

Supervisor software delivered on CD-Rom for realtime data downloading on PC computer running Windows (c) 98 - 2000 - XP / possibility to collect the data for a LIMS

Pressure and time tracking during the test
2 or 4 Analysis can be launched independently
Data Storage: 200 results
Sample identification
Operator's name
Quick access to calibration parameters
Auto diagnostic

SCOPE OF DELIVERY:

NPI 440 & NPI 442 delivered ready to use with SEIKO ticket printer, and RS232C output.
Supervisor Software included Vessels, filling accessory and glassware to be ordered separately AC 230 V, 50Hz, 10A (570x630x640mm) ±40kg -
115 V on request
NL 40930 NPC 210 - Automatic oxygen filling and decompression unit ±30 kg (500x365x800mm)

NECESSARY ACCESSORIES:

NL 409031 Stainless steel test vessel with safety burst disc
NL 40909 Manual filling and decompression unit
NL 40911 2 places Support for vessels
NL 40933 Pack of 10 gaskets viton for vessel
NL 21688 Glass test container without cover
NL 513513 Glass test container with cover
NL 513514 Cover for container

SPART PART:

NL 40390 Roll of printer paper
NL 40913 Pt 100 probe for liquid bath
NL 40916 Heating element for liquid bath (1800NL W) Serial N° is required
NL 40919 Solid state relay for heating element
NL 40933 Pack of 10 gaskets viton for vessel
NL 40934 Pt 100 probe for dry bath
NL 40935 Heating element for liquid bath (1800W) Serial N° is required

Catalogue No. NL 40925