ASTM D6499 Antigenic Protein Testing in Hevea Natural Rubber
An immunological method for quantization of Hevea Natural Rubber (HNRL) proteins using rabbit anti-HNRL serum. Rabbits immunized with HNRL proteins react to the majority of the proteins present, and their sera have the capability to detect most if not all the proteins in HNRL.

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Precision-driven testing for dimensional accuracy and compliance
- Overview
- Scope, Applications, and Benefits
- Test Process
- Specifications
- Instrumentation
- Results and Deliverables
Overview
Antigenic Protein testing in Hevea Natural Rubber as per ASTM D6499 is a specialized analytical method used to quantify proteins that can cause allergic reactions. Natural rubber derived from Hevea brasiliensis contains residual proteins, some of which are antigenic and may trigger latex allergies in sensitive individuals.
This test is essential for medical, healthcare, and consumer product industries to ensure the safety of latex-based products such as gloves, catheters, and elastic materials. By accurately measuring antigenic protein levels, ASTM D6499 helps manufacturers comply with safety regulations and minimize allergenic risks.

Scope, Applications, and Benefits
Scope
ASTM D6499 determines the level of antigenic proteins in natural rubber and latex products using immunochemical techniques, ensuring safety and regulatory compliance.
- Applicable to Hevea natural rubber products
- Measures antigenic protein content
- Supports allergen risk assessment
- Used in medical and consumer product testing
- Ensures compliance with ASTM standards
Applications
- Medical glove and device testing
- Latex product safety evaluation
- Healthcare product certification
- Raw material quality assessment
- Regulatory compliance testing
Benefits
- Detects allergenic protein content accurately
- Enhances product safety for end users
- Supports compliance with global standards
- Reduces risk of latex-related allergies
- Improves product quality and reliability
Test Process
Sample Extraction
Proteins are extracted from the rubber sample using suitable aqueous solutions.
1Immunoassay Preparation
Extracted proteins are prepared for analysis using antibody-based methods.
2Protein Detection
Antigenic proteins are quantified using enzyme-linked immunosorbent assay (ELISA).
3Data Analysis
Results are calculated to determine protein concentration and allergenic potential.
4Technical Specifications
| Parameter | Details |
|---|---|
| Measurement | Antigenic protein concentration |
| Detection range | Microgram per gram (µg/g) levels |
| Sample type | Hevea natural rubber and latex products |
| Sensitivity | High sensitivity for allergenic proteins |
| Extraction medium | Aqueous buffer solution |
| Output | Quantitative protein content |
Instrumentation Used for Testing
- ELISA reader (microplate reader)
- Incubation chamber
- Pipettes and microplates
- Centrifuge
- Sample extraction apparatus
Results and Deliverables
- Antigenic protein concentration values
- ELISA assay data and calibration curves
- Compliance with ASTM D6499
- Risk assessment for allergenic potential
- Detailed analytical test report
Frequently Asked Questions
ASTM D6499 is a standard test method used to quantify antigenic proteins in Hevea natural rubber. It helps assess allergenic potential and ensures safety of latex products used in medical and consumer applications.
Antigenic proteins can trigger allergic reactions in sensitive individuals. Testing helps identify and control protein levels, ensuring safer latex products and compliance with health and safety regulations.
By identifying and controlling antigenic protein levels, manufacturers can reduce allergenic risks. This helps produce safer products for individuals sensitive to natural rubber latex.
The test uses an immunochemical method, typically ELISA, to detect and quantify antigenic proteins. This technique provides high sensitivity and specificity for accurate protein measurement.
Yes, regulatory bodies and industry standards often require testing of antigenic proteins in latex products, especially for medical applications, to ensure user safety and product compliance.
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