QUANTOFIX Free Fatty Acids Test Strips 91365 | Semi-Quantitative FFA Test for Frying Oil | 0–3% FFA | 50 Tests | MACHEREY-NAGEL
Product Brochure
For more details about this product, download the brochure.
Product Description
QUANTOFIX® Free Fatty Acids 91365 are semi-quantitative test strips designed for the rapid determination of free fatty acids (FFA) in frying oils and fats. They provide a convenient dip-and-read method for on-site monitoring of frying-oil quality.
The test covers a visual range of 0.25–3% FFA, with colour gradations of 0, 0.25, 0.5, 1, 2 and 3% FFA. The colour reaction changes from blue to yellow as the free-fatty-acid concentration increases.
These strips are particularly useful in food-processing plants, restaurants, commercial kitchens, snack and frying-food production, catering operations and food-quality laboratories for routine monitoring of frying oil.
Key Features
- Semi-quantitative determination of Free Fatty Acids
- Designed specifically for frying oil and frying fat
- Measuring range: 0–3% FFA
- Visual gradations: 0 / 0.25 / 0.5 / 1 / 2 / 3% FFA
- Fast dip-and-read testing
- Suitable for testing hot frying oil
- No additional reagent required
- No laboratory instrument or reflectometer required
- Colour reaction: Blue → Yellow
- Useful for routine oil-quality monitoring
- 50 test strips per pack
- Supplied in an aluminium tube/container
- Shelf life: 2 years from production
- Storage temperature: 4–30°C
- Hazardous material: No
- CE certified: No
Technical Specifications
| Specification | Details |
|---|---|
| Brand | QUANTOFIX |
| Manufacturer | MACHEREY-NAGEL |
| Product | Free Fatty Acids Test Strips |
| REF / Item No. | 91365 |
| Test Type | Semi-quantitative |
| Parameter | Free Fatty Acids (FFA) |
| Application | Frying oil / frying fat |
| Measuring Range | 0.25–3% FFA visually |
| Full Scale | 0–3% FFA |
| Colour Gradations | 0, 0.25, 0.5, 1, 2, 3% FFA |
| Alternative Gradation | 0, 0.5, 1, 2, 4, 6 mg KOH/g |
| Colour Change | Blue → Yellow |
| Method | Colour reaction with pH indicator |
| Additional Reagent | Not required |
| Instrument Required | No |
| Reflectometer Evaluation | No |
| Number of Tests | 50 |
| Strip Dimensions | Approx. 7 × 95 mm |
| Storage Temperature | 4–30°C |
| Shelf Life | 2 years from production |
| Gross Weight | Approx. 30 g |
| Packaging Dimensions | Approx. 38 × 38 × 120 mm |
| Hazardous Material | No |
| CE Certified | No |
| Country of Origin | Germany |
Technical specifications are based primarily on MACHEREY-NAGEL's current product information and instructions.
Test Procedure
- Take the required number of test strips from the container and immediately close the container.
- Immerse the test strip in the oil sample for approximately 2 seconds.
- Do not shake off the strip.
- Allow the colour reaction to develop according to the manufacturer's instructions.
- Compare the resulting colour with the colour scale.
- Read the corresponding % FFA value.
The manufacturer's instructions specify testing at either approximately 25°C or 160°C, depending on the selected procedure.
Why Test Free Fatty Acids in Frying Oil?
Repeated heating and frying can cause oils and fats to degrade, increasing the free-fatty-acid content. Monitoring FFA helps food-processing and frying operations assess oil deterioration, freshness and frying-oil quality and supports consistent quality of fried products.
Applications
Food Industry
- Frying-oil quality control
- Food-processing plants
- Snack-food manufacturing
- Potato-chip production
- Fried-food production
- Commercial kitchens
- Restaurants and catering
- Bakery and food-service operations
- Quality-control laboratories
- Food testing laboratories
Typical oils/fats: frying oils and fats used for commercial food preparation.
Package Contents
1 × QUANTOFIX® Free Fatty Acids Test Strip Pack
- 50 test strips
- Supplied in an aluminium tube/container
- Product reference: 91365
- Digital product instructions available from MACHEREY-NAGEL.
Important Product Information
QUANTOFIX® Free Fatty Acids 91365 is a semi-quantitative screening/quality-control test, not a replacement for a laboratory titration or other reference analytical method when an exact quantitative result is required.
For best results, keep the container properly closed and store the strips at 4–30°C. Avoid touching the reactive test field.
Description
Product Description
QUANTOFIX® Free Fatty Acids 91365 are semi-quantitative test strips designed for the rapid determination of free fatty acids (FFA) in frying oils and fats. They provide a convenient dip-and-read method for on-site monitoring of frying-oil quality.
The test covers a visual range of 0.25–3% FFA, with colour gradations of 0, 0.25, 0.5, 1, 2 and 3% FFA. The colour reaction changes from blue to yellow as the free-fatty-acid concentration increases.
These strips are particularly useful in food-processing plants, restaurants, commercial kitchens, snack and frying-food production, catering operations and food-quality laboratories for routine monitoring of frying oil.
Key Features
- Semi-quantitative determination of Free Fatty Acids
- Designed specifically for frying oil and frying fat
- Measuring range: 0–3% FFA
- Visual gradations: 0 / 0.25 / 0.5 / 1 / 2 / 3% FFA
- Fast dip-and-read testing
- Suitable for testing hot frying oil
- No additional reagent required
- No laboratory instrument or reflectometer required
- Colour reaction: Blue → Yellow
- Useful for routine oil-quality monitoring
- 50 test strips per pack
- Supplied in an aluminium tube/container
- Shelf life: 2 years from production
- Storage temperature: 4–30°C
- Hazardous material: No
- CE certified: No
Technical Specifications
| Specification | Details |
|---|---|
| Brand | QUANTOFIX |
| Manufacturer | MACHEREY-NAGEL |
| Product | Free Fatty Acids Test Strips |
| REF / Item No. | 91365 |
| Test Type | Semi-quantitative |
| Parameter | Free Fatty Acids (FFA) |
| Application | Frying oil / frying fat |
| Measuring Range | 0.25–3% FFA visually |
| Full Scale | 0–3% FFA |
| Colour Gradations | 0, 0.25, 0.5, 1, 2, 3% FFA |
| Alternative Gradation | 0, 0.5, 1, 2, 4, 6 mg KOH/g |
| Colour Change | Blue → Yellow |
| Method | Colour reaction with pH indicator |
| Additional Reagent | Not required |
| Instrument Required | No |
| Reflectometer Evaluation | No |
| Number of Tests | 50 |
| Strip Dimensions | Approx. 7 × 95 mm |
| Storage Temperature | 4–30°C |
| Shelf Life | 2 years from production |
| Gross Weight | Approx. 30 g |
| Packaging Dimensions | Approx. 38 × 38 × 120 mm |
| Hazardous Material | No |
| CE Certified | No |
| Country of Origin | Germany |
Technical specifications are based primarily on MACHEREY-NAGEL's current product information and instructions.
Test Procedure
- Take the required number of test strips from the container and immediately close the container.
- Immerse the test strip in the oil sample for approximately 2 seconds.
- Do not shake off the strip.
- Allow the colour reaction to develop according to the manufacturer's instructions.
- Compare the resulting colour with the colour scale.
- Read the corresponding % FFA value.
The manufacturer's instructions specify testing at either approximately 25°C or 160°C, depending on the selected procedure.
Why Test Free Fatty Acids in Frying Oil?
Repeated heating and frying can cause oils and fats to degrade, increasing the free-fatty-acid content. Monitoring FFA helps food-processing and frying operations assess oil deterioration, freshness and frying-oil quality and supports consistent quality of fried products.
Applications
Food Industry
- Frying-oil quality control
- Food-processing plants
- Snack-food manufacturing
- Potato-chip production
- Fried-food production
- Commercial kitchens
- Restaurants and catering
- Bakery and food-service operations
- Quality-control laboratories
- Food testing laboratories
Typical oils/fats: frying oils and fats used for commercial food preparation.
Package Contents
1 × QUANTOFIX® Free Fatty Acids Test Strip Pack
- 50 test strips
- Supplied in an aluminium tube/container
- Product reference: 91365
- Digital product instructions available from MACHEREY-NAGEL.
Important Product Information
QUANTOFIX® Free Fatty Acids 91365 is a semi-quantitative screening/quality-control test, not a replacement for a laboratory titration or other reference analytical method when an exact quantitative result is required.
For best results, keep the container properly closed and store the strips at 4–30°C. Avoid touching the reactive test field.
Shipping Info
We partner with premium logistics networks via Shiprocket to ensure your laboratory instruments and chemical indicators arrive safely, securely, and professionally packaged. Shipping timelines depend on the transit tier selected at checkout.
National Deliveries (Within India)
- Rush Delivery: Less than 2 business days
- Express Delivery: 2 to 5 business days
- Standard Delivery: Greater than 5 business days.
Product Brochure
For more details about this product, you can download the product brochure.