Retroreflectometer

A Retroreflectometer is used to check the performance of retroreflective tape. Every roll of tape is tested to ensure it meets and exceeds the standard requirements. The retroflectometer measures the coefficient of two rotating angles. EN ISO 20471 states the reading should not be below 330 (cd/lx.m2) however at Portwest they insist on a reading of 400 (cd/lx.m2) plus.

Spectrophotometer

A spectrophotometer is used to check the chromaticity – “colour intensity” – of fabric. They use this to ensure every roll of fabric meets the requirements of EN ISO 20471 and RIS-3279-TOM.

RIS-3279-TOM

RIS imposes a higher concentration for high visibility orange fabric for railway workers. This increases the conspicuous nature of the fabric and ensures that the rail worker is more visible.

Reflective Tape

Reflective tape must be at least 50mm wide. Bands of reflective tape must be positioned at least 50mm apart.

Distance From Hem

Reflective tape must be positioned 50mm or more from the end of sleeve or leg.

All Around The Body

Reflective tape must encircle torso and/or limbs to be included in the calculation of the necessary square area of reflective tape. A gap (for fastening system or seam) in the band of reflective tape must be 50mm or less. The total amount of such gaps in every band must not exceed 100mm around the torso and 50mm around the sleeves and legs.

Class 3: Highest Level

Highest level of protection - required for any persons working on or near motorways, dual-carriage ways or airports. Must incorporate a minimum of 0.80m2 of background material  and 0.20m2 of retroreflective materials. (4 metres of 5cm wide reflective tape)

Class 2: Intermediate Level

Required for any persons working on or near A and B class roads, also for delivery drivers. Must incorporate a minimum of 0.50m2 of background material and 0.13m2 of retro-reflective material. (2.60 metres of 5cm wide reflective tape)

Class 1: Minimum Level

Minimum level of protection required for any persons working on a private road or to be used in conjunction with a higher classed garment. Must incorporate a minimum of 0.14m2 of background material and 0.10m2 of retroreflective material. (2 metres of 5cm wide reflective tape)

This European standard is part of a series of standards for test methods and requirements for electrostatic properties of protective clothing.

The standard specifies material and design requirements for garments used as part of a total earthed system, to avoid incendiary discharges.

The requirements may not be sufficient in oxygen enriched flammable atmospheres.

This European Standard is not applicable for specifying protection against main voltages.

EN 1149-1:

Test method for measurement of surface resistivity. Surface resistance measures the conductivity between two points on the surface of a fabric. The lower the resistance the higher the conductivity, resulting in charge going to earth.

EN 1149-2:

Test method for measurement of the electrical resistance through a material (vertical resistance). This is the level of conductivity when measured through the depth of a fabric.

EN 1149-3:

Test methods for measurement of charge decay. Charge decay measures how long it takes for an electric current to dissipate. The quicker it dissipates the higher the anti-static properties of the garment.

Please note the EN 1149-4 Garment Test is under development.

EN 1149-5:

EN 1149-5 specifies the performance and design requirements to avoid static discharge for all electrostatic dissipative protective clothing as part of an entire earthed system, shoes, clothing & floor. The material meets the requirements.

This international standard specifies the performance requirements for the limited flame spread properties of materials and protective clothing intended to protect workers against occasional brief contact with small flames.

There are 3 indices for limited flame spread protection under the standard. Depending on how the fabric performs during the test determines the index or level of protection.

EN ISO 14116 Testing Equipment
A specialist test rig is used for testing flame standards on materials under laboratory conditions. A small flame is applied to a fabric sample for 10 seconds and then removed. The condition of the fabric is then examined.

Index 1 - The lowest level of protection
The flame does not spread, there are no flaming debris, no afterglow but a hole may be formed

Index 2 - A higher level of protection
The flame does not spread, there are no flaming debris, no afterglow and there will be no hole formation.

Index 3 - The highest level of protection
At this level the flame does not spread, there are no flaming debris, no afterglow, no hole formation and it also specifies that the afterflame time for each individual sample garment is less than 2 seconds.

Garments must be laundered according to the manufacturer's instructions; incorrect laundering of flame resistant garments can seriously affect their performance and fit.

The flame resistant finish is retained for the normal life cycle of the garment provided that the care instructions are adhered to.

• If dirty stains are difficult to remove, they can be treated before washing with a liquid detergent applied directly to stains and lightly rubbed.
• Never use chlorine bleach or washing detergents containing bleach as these will reduce the flame resistance properties of the fabric.
• Fabric softeners, starches and other laundry additives are not recommended as they can mask the flame resistance performance and may also act as a fuel in case of combustion.

• Always wash contaminated workwear separately
• Always follow the washing temperature on the garment label.
• Always wash and dry garments inside out to minimize surface abrasion and help maintain the surface appearance of the fabric.
• Zips and Velcro fastenings should be closed during washing.
• To ensure a cleaner wash, avoid overloading the machine so the garments can move freely through the wash and rinse cycles.

• Tumble drying is not usually recommended as the temperature used is often too high and can cause garment shrinkage
• It is vital that cotton or cotton mix garments are not over dried as over drying has been determined to be the main cause of excessive garment shrinkage.
• Do not hang in direct sunlight as this can cause fading