How to Do EN388 Glove Testing: A Complete Guide

1. Introduction to EN388: What You Need to Know

1.1 What is EN388?

1.2 Why EN388 Testing Matters

2. What Are EN388-Certified Gloves Used For?

2.1 Industrial Work

• Shielding hands from friction, sharp edges, or punctures in manufacturing, assembly lines, or metalworking.

2.2 Construction Sites

• Protecting against abrasive materials (e.g., concrete, lumber), cuts from tools, or punctures from nails.

2.3 Mechanical Operations

• Safeguarding workers handling machinery, cables, or heavy equipment where tears or punctures are common.

2.4 Handling Sharp Objects

• Providing cut resistance for tasks like glass handling, packaging, or utility work.

3. Step-by-Step Guide to EN388 Glove Testing

3.1 Pre-Testing Preparation

• Ensure gloves are conditioned at 23°C ± 2°C and 50% ± 5% relative humidity for at least 24 hours.
• Use new, unused gloves for testing—wear and tear can skew results.
• Calibrate testing equipment to meet EN388’s technical specifications.

3.2 Abrasion Resistance Testing (EN388 Clause 4)

1. Mount a glove sample on a standardized abrasive surface (e.g., sandpaper).
2. Apply a constant load (9 kPa) and rotate the surface until the sample breaks.
3. Count the number of cycles required for breakthrough—ratings range from 1 (lowest) to 4 (highest).

• Key term: Abrasion cycles (the number of rotations before failure).

3.3 Cut Resistance Testing (EN388 Clause 5)

1. Use a rotating circular blade (or straight blade for newer ISO 13997 methods) on the glove sample.
2. Apply a constant force and measure the distance the blade travels to cut through the sample.
3. Assign a rating from 1 (≤20 mm) to 5 (≥100 mm) based on cut distance.

• Key term: Cut index (the distance indicating the glove’s cut resistance).

3.4 Tear Resistance Testing (EN388 Clause 6)

1. Cut a 20 mm notch in the center of the glove material.
2. Clamp the sample in a tensile tester and pull until it tears completely.
3. Measure the force (in newtons) required—ratings range from 1 (≤10 N) to 4 (≥35 N).

• Key term: Tear force (the maximum force to rip the sample).

3.5 Puncture Resistance Testing (EN388 Clause 7)

1. Use a standardized steel probe with a rounded tip (1 mm diameter).
2. Push the probe into the glove sample at a constant speed (100 mm/min).
3. Record the force (in newtons) needed to puncture through—ratings from 1 (≤15 N) to 4 (≥50 N).

• Key term: Puncture force (the force required to break the glove material).

3.6 Impact Protection Testing (EN388 Optional Clause 8)

1. Drop a weighted impactor (2 kg) onto the glove sample from a specified height.
2. Measure the force transmitted through the glove to a sensor.
3. A pass is awarded if transmitted force is ≤15 kN—rated as "IP" (Impact Protection) on the glove label.

3.7 Post-Testing: Interpreting Results

• EN388 results are displayed as a 4-digit (or 5-digit with impact) code (e.g., 4342 or 4342X).
• Each digit corresponds to the rating for abrasion, cut, tear, puncture, and impact (X = no impact test).

4. Key Considerations for Accurate EN388 Testing

• Always follow EN388’s official technical specifications—deviations invalidate results.
• Test multiple samples (minimum 3 per glove type) and average the results.
• Use accredited testing laboratories for certification—unverified testing may not be accepted for compliance.
• Note that glove thickness alone doesn’t guarantee performance—material composition (e.g., Kevlar, nitrile) plays a critical role.

5. Conclusion