Evaporation loss tester

Introduction

An evaporation loss tester is an instrument used to measure the evaporation loss of the lubricating oils and the other fluids, which is the loss of the oil by the evaporation at the high temperatures, and it is used in the petroleum, the lubricant, and the many other industries for the quality control and the testing. The evaporation loss tester measures the evaporation loss by the heating of a specified quantity of the sample in a test vessel at a specified temperature, such as 250 degrees Celsius, for a specified time, with the air or the nitrogen flowing over the surface, following the standard test methods, such as the ASTM and the ISO standards, and the evaporation loss is calculated from the loss of the mass of the sample; the evaporation loss tester consists of a heating system, a test vessel, a temperature control system, a gas supply, and a weighing, and it provides a controlled and a reproducible measurement, with features such as the digital temperature control and the timing; the evaporation loss tester is used for the measurement of the evaporation loss of the lubricating oils, for the testing of the volatility of the oils, for the quality control, for the product development, for the assessment of the oil consumption, and for many other applications, and it is an essential instrument for the lubricant testing. Evaporation loss testers are used in the petroleum industry, in the lubricant industry, in the testing laboratories, and for many other applications. With their evaporation loss measurement, evaporation loss testers are essential for the lubricant quality control.

Automatic Evaporation Loss Tester LAET-T2010

Automatic Evaporation supports a wide temperature range from room temperature to 300°C, suitable for various heating applications. It ensures precise temperature control with ±0.1°C r...

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Standards

Complies with the above standards, but is not limited to them.

Features

1. Evaporation loss tester for measuring weight loss of lubricating oils and fluids under controlled temperature and airflow.

2. Heated test cell with regulated air flow for determining evaporative loss characteristics of oils.

3. Suitable for lubricant testing, petroleum, quality control, research, automotive and industrial labs.

4. Includes heating bath, test cell, airflow regulator, temperature controller, balance interface and manual.

5. Supports evaporation loss measurement for lubricating oils, gear oils, hydraulic fluids and other petroleum products.

FAQ

Q1: What testing scenarios is this tester mainly applied to?

A: The evaporation loss tester is used in lubricant testing, petroleum industry, quality control, research, automotive, and industrial laboratories to measure the evaporative weight loss of lubricating oils and fluids under controlled temperature and airflow conditions, evaluating the volatility characteristics of oils which affect oil consumption, viscosity increase, and performance in service. It supports engine oil testing (SAE J364, ASTM D5800 (Noack method) - evaporation loss is a key parameter for engine oil performance and ILSAC/API certification), gear oil and transmission fluid testing, hydraulic fluid testing, metalworking fluid testing, and research on oil volatility and formulation.

Q2: What standards does the tester comply with?

A: The evaporation loss tester follows relevant ASTM, ISO, DIN and GB/T standards including ASTM D5800 (standard test method for evaporation loss of lubricating oils by the Noack method - Procedure A (atmospheric), B (vacuum), C (automated)), ISO 6617 (petroleum products - determination of evaporation loss of lubricating oils), DIN 51581 (evaporation loss of lubricating oils), SAE J364 (lubricant evaporation), and GB/T standards for lubricating oil evaporation loss. The hardware complies with IEC 61010 safety standards. Calibration should use certified reference oils (e.g., ASTM reference oil, certified calibration oil with known evaporation loss) and calibrated temperature/flow instruments.

Q3: What is the warranty period for the whole tester and key components?

A: The whole evaporation loss tester is covered by a 12-month warranty. The heating bath, test cell, airflow regulator, temperature controller, pump (if vacuum), and housing are covered, while test cells (glass or metal), gaskets, filters, pump oil, seals and fuses are consumables or accessories. Damage from improper use, oil spillage/carbon buildup, overheating, glass cell breakage or unauthorized repair is excluded. Extended warranty may be available.

Q4: Is this device difficult to operate? Is professional training required?

A: Operation requires trained laboratory technicians familiar with lubricant test methods. We provide operation manuals and training. Proper sample preparation (weigh exact sample amount (typically 60 g for Noack), homogenize), test setup (fill test cell, connect airflow/vacuum, set temperature (typically 250 degrees C for Noack), set airflow (typically 60 L/h for Procedure A) or vacuum (20 mm Hg for Procedure B)), test execution (maintain temperature and flow for specified time (typically 60 minutes for Noack), post-test handling (cool, reweigh, calculate percent loss), cleaning (remove oil residue/carbon from test cell, clean thoroughly between samples to prevent cross-contamination), and safety (high temperature (250 degrees C) burn hazard, hot oil, proper ventilation for oil vapors) are important for accurate results.

Q5: What is the typical lead-time for order delivery?

A: Standard models require 7-30 working days. In-stock units can ship within 3-7 working days. Custom configurations or large built-to-order systems may require additional time, and we confirm the exact schedule before order confirmation.

Q6: Is regular calibration required? What is the recommended calibration cycle?

A: Temperature calibration recommended every 6-12 months using calibrated reference thermometer (verify at test temperature (250 degrees C for Noack)). Airflow calibration every 3-6 months using calibrated flow meter (verify at 60 L/h for Procedure A). Vacuum calibration (if Procedure B) every 3-6 months using calibrated vacuum gauge. Routine verification with certified reference oil per batch or per month. Full tester performance verification annually. For accredited laboratories, follow ISO/IEC 17025 calibration requirements.

Q7: Are supporting consumables universal?

A: Test cells (glass or metal, specific to tester model), gaskets (high-temperature resistant), filters (air inlet/outlet), pump oil (for vacuum pump), cleaning supplies (solvent, brushes), reference oils (certified calibration oil), and fuses are available from laboratory suppliers, though test cells and gaskets may be tester-specific. Long-term consumable cost includes test cell replacement (periodic - glass cells can break or become contaminated with carbon buildup), gaskets, and cleaning supplies.

Q8: Can I customize parameters or supporting accessories?

A: Customization includes test method (Noack Procedure A (atmospheric, airflow), B (vacuum), C (automated), ISO 6617, DIN 51581), number of test cells (single, dual, multi-cell (4-8) for higher throughput), temperature range (ambient to 300+ degrees C), temperature control accuracy, airflow/vacuum control, automation (automatic temperature ramping, timing, balance integration for real-time weight loss measurement, data logging), safety features (over-temperature protection, fume extraction, hot surface warning), software (test methods library, data export, report generation, LIMS connectivity), language and accessories. Additional test cells, gaskets, and accessories can be ordered separately.

Q9: Does the purchase include on-site installation and commissioning service?

A: Standard delivery includes the evaporation loss tester, test cell(s), power supply, basic accessories and instruction manual. On-site installation, calibration and training are not included for standard orders but can be arranged at additional cost. Remote guidance is provided.

Q10: What types of samples are compatible with this equipment?

A: The evaporation loss tester tests various petroleum-based fluids including engine oils (monograde, multigrade, synthetic, semi-synthetic, mineral - SAE 0W-20 through 20W-50; ILSAC GF-6, API SP, ACEA specifications; evaporation loss is a key certification parameter (Noack volatility typically <15% for most engine oil grades)), gear oils (API GL-4, GL-5, MT-1; SAE 75W-90 through 85W-140; manual transmission, differential, gearbox oils), automatic transmission fluids (ATF - Dexron, Mercon, CVT, DCT fluids), hydraulic fluids (ISO VG 22-100; anti-wear, fire-resistant), compressor oils, turbine oils, circulating oils, metalworking fluids (neat oils, some soluble oils), and other lubricating fluids within the temperature range, viscosity, and sample type specification. IMPORTANT: Evaporation loss (Noack) is particularly important for engine oils because: (1) oil consumption in engines is directly related to volatility (more volatile oils burn/consume more, leading to oil consumption between changes, increased emissions, and potential catalyst damage from oil ash); (2) ILSAC and API engine oil specifications set maximum Noack volatility limits (typically <15% for most grades, <10% for some fuel-economy grades); (3) base oil type affects volatility (Group I/II mineral oils have higher Noack loss (15-25%), Group III/III+ (hydrocracked) have lower (8-15%), PAO (synthetic) have very low (5-10%), esters have variable); (4) viscosity grade affects volatility (lighter grades (0W-20, 5W-30) tend to have higher volatility unless formulated with low-volatility base stocks (Group III+, PAO); heavier grades (15W-40, 20W-50) have lower volatility but may use higher-viscosity base stocks). Test parameters: Noack method (ASTM D5800) - Procedure A: 60 g oil, 250 degrees C, 60 L/h airflow, 60 minutes, weigh before/after, report % weight loss; Procedure B: 60 g oil, 250 degrees C, 20 mm Hg vacuum, 60 minutes (for oils that produce excessive fumes in Procedure A); Procedure C: automated version (similar to A but with automated temperature control and timing, multiple cells). Different standards may use different temperatures/times (ISO 6617: 250 degrees C, 60 minutes; DIN 51581: 250 degrees C, 60 minutes; some methods use 200 degrees C for more volatile fluids). Sample handling: oil samples should be homogeneous (warm and mix if wax or additives have separated; avoid contamination), exact weighing (use analytical balance, 0.001 g resolution; weigh sample and cell together before and after to avoid transfer loss), test cell cleaning (oil residue and carbon buildup from previous tests can affect results (adds weight, reduces effective cell volume, affects heat transfer); clean thoroughly with solvent (heptane, toluene) and dry completely between samples; replace cells if heavily contaminated or damaged). Safety: test temperature 250 degrees C is well above the flash point of most oils (typically 150-250 degrees C for mineral oils; synthetic oils may have higher flash points) - hot oil can ignite if exposed to open flame or spark; use fume hood or proper exhaust; avoid overfilling (oil can foam and overflow at high temperature); use appropriate PPE (heat-resistant gloves, safety glasses/goggles, lab coat); allow proper cooling before handling after test (oil and cell remain hot for 15-30 minutes after test).