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Portwest Bizweld Work FR Trousers - Black

Out of Stock

hourglass_emptyPre-Order - Stock Due: 08/01/2027

hourglass_emptyPre-Order - Stock Due: 08/01/2027

hourglass_emptyPre-Order - Stock Due: 08/01/2027

hourglass_emptyPre-Order - Stock Due: 08/01/2027

hourglass_emptyPre-Order - Stock Due: 08/01/2027

hourglass_emptyPre-Order - Stock Due: 08/01/2027

local_shipping Delivery: 1-2 Working Days * once in stock Delivery: 1-2 Working Days * once in stock Delivery: 1-2 Working Days * once in stock Delivery: 1-2 Working Days * once in stock Delivery: 1-2 Working Days * once in stock Delivery: 1-2 Working Days * once in stock Delivery: 1-2 Working Days * once in stock
  • Protection against radiant, convective and contact heat
  • Rule pocket
  • Twin-stitched seams for extra durability
  • 3 pockets for ample storage
  • Premium sew on flame resistant reflective tape
  • Half elasticated waist for a secure and comfortable fit
  • 40+ UPF rated fabric to block 98% of UV rays
PW_BZ14_9925e1872dab BZ14BKRS BZ14BKRM BZ14BKRL BZ14BKRXL BZ14BKRXXL BZ14BKRXXXL

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SmallBZ14BKRS
£29.17 ex VAT£35.00 inc VAT
Pre-Order - due for despatch 08/01/2027
MediumBZ14BKRM
£29.17 ex VAT£35.00 inc VAT
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LargeBZ14BKRL
£29.17 ex VAT£35.00 inc VAT
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XLBZ14BKRXL
£29.17 ex VAT£35.00 inc VAT
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XXLBZ14BKRXXL
£29.17 ex VAT£35.00 inc VAT
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3XLBZ14BKRXXXL
£29.17 ex VAT£35.00 inc VAT
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Out of Stock - Due for despatch 08/01/2027

Prices per individual item

1 - 4 items
5 - 9 items
10+ items
£35.00 inc vat
£33.60 inc vat
£32.30 inc vat
£29.17 ex vat
£28.00 ex vat
£26.92 ex vat
Out of Stock - Due for despatch 08/01/2027

Prices per individual item

1 - 4 items
5 - 9 items
10+ items
£35.00 inc vat
£33.60 inc vat
£32.30 inc vat
£29.17 ex vat
£28.00 ex vat
£26.92 ex vat
Out of Stock - Due for despatch 08/01/2027

Prices per individual item

1 - 4 items
5 - 9 items
10+ items
£35.00 inc vat
£33.60 inc vat
£32.30 inc vat
£29.17 ex vat
£28.00 ex vat
£26.92 ex vat
Out of Stock - Due for despatch 08/01/2027

Prices per individual item

1 - 4 items
5 - 9 items
10+ items
£35.00 inc vat
£33.60 inc vat
£32.30 inc vat
£29.17 ex vat
£28.00 ex vat
£26.92 ex vat
Out of Stock - Due for despatch 08/01/2027

Prices per individual item

1 - 4 items
5 - 9 items
10+ items
£35.00 inc vat
£33.60 inc vat
£32.30 inc vat
£29.17 ex vat
£28.00 ex vat
£26.92 ex vat
Out of Stock - Due for despatch 08/01/2027
Buying for a team or need a larger quantity? Get a quote for bulk orders, account pricing or branded workwear. Request a business quote →

EN ISO 11611 Guides

EN ISO 11611 - Protective Clothing For Use In Welding And Allied Processes - Features

Flap Pockets

In order to comply with EN ISO 11611 all external pockets must be flapped, except for side pockets below the waist which do not extend more than ten degrees forward of the seam.

Rule Pockets

A single rule pocket with an opening not greater than 75mm is permitted behind the side seam on one or both legs.

EN ISO 11611 - Protective Clothing For Use In Welding And Allied Processes - Features

Tensile and Tear Strength

To meet EN ISO 11611 tensile strength must be at least 400N and tear strength must be at least 15N for class 1 and 20N for class 2.

For example:

Portwest's winning FR50 style has a tensile strength value of at least 500N and tear strength of at least 25N after 50 washes.

What Is EN ISO 11611?

Protection against...

This international standard specifies minimum basic safety requirements and test methods for protective clothing for use in welding and allied processes (excluding hand protection). There are two classes with specific performance requirements.

EN ISO 11611 - Class Level Protections

Class 1 Level Protection

Class 1 is protection against less hazardous welding techniques and situations, causing lower levels of spatter and radiant heat.

Class 2 Level Protection

Class 2 is protection against more hazardous welding techniques and situations, causing higher levels of spatter and radiant heat.

EN ISO 11611 - Testing

The EN ISO 11611: standard has the following parameters:

  • Tensile Strength
  • Tear strength
  • Busting strength
  • Seam strength
  • Dimensional change
  • Requirements of leather
  • Limited Flame Spread (A1 + A2)
  • Molten Droplets
  • Heat Transfer (radiation)
  • Electrical resistance

EN ISO 11612 Guides

What Is EN ISO 11612? - Protective Clothing Against Heat and Flames

EN ISO 11612 is the standard for protective clothing which protects against heat and flame. Users for these garments include those who work in oil & gas, welding & allied processes, mining, petroleum and many other industries.

There are a host of specific tests conducted as part of EN ISO 11612, including tests for: Flame Spread, Tensile Strength, Tear Resistance, and Heat Resistance.

EN ISO 11612 Tests Include:

Flame Spread Test:

A flame is held against the fabric for ten seconds. After it is removed the fabric should not continue to burn. There should be no hole formation, melting or molten debris.

Tensile Strength Test:

The fabric must be able to withstand a minimum force of 300 newtons while being stretched or grabbed.

EN ISO 11612 Tests Include:

Tear Resistance Test:

The fabric must be able to withstand a minimum force of 10 newtons before it will tear.

Heat Resistance Test:

The fabric is placed in an oven at 180oC and must not ignite melt or shrink within the first 5 minutes in order to comply with the standard.

STANDARDS & CERTIFICATION

  • EN ISO 11612 (A1+A2, B1, C1, E2, F1)
  • EN ISO 11611 Class 1 (A1 + A2)
  • EN 61482-2 EN 61482-1-1 (ELIM 8.3 CAL/CM², ATPV 10.9 CAL/CM²)
  • ASTM F1959/F1959M-12 (ATPV 11.2 CAL/CM2 (HAF = 80.4%))

Certification markings

CE Certified

CE Certified

This product conforms with essential health and safety requirements as set out in European Directives.

CE CAT III

CE CAT III

This product is CE marked as a Category 3 item for complex design.

KEY FEATURES

Protection & performance

UPF 40+

UPF 40+

40+ UPF rated fabric to block 98% of UV rays.

Comfort & practical features

Multiple Storage Pockets - 3

Multiple Storage Pockets - 3

This garment features 3 pockets.

Half Elasticated Waist

Half Elasticated Waist

This features a half elastic waistband which allows for all-day comfort for the wearer.

PRODUCT & BRAND NOTES

Gold Ecovadis Sustainability Rating 2026

Gold Ecovadis Sustainability Rating 2026

Portwest has been independently rated by Ecovadis for its environmental, social, and ethical performance and achieved a gold rating, meaning they are in the top 5% of globally rated companies.
The pillars taken into consideration include the environment, labour practices and human rights, ethics, and sustainable procurement.

PRODUCT DETAILS & SPECIFICATIONS

The Bizweld Trouser offers enhanced comfort and performance. Providing excellent welding properties, this trouser gives outstanding multi purpose protection against radiant heat and molten iron splashes. Key features include side pockets, rule pocket and reflective tape at leg ends.

CareSymbolBleach
Do not bleach
CareSymbolDryClean
Do not dry clean
CareSymbolIron
Iron max 150°C
CareSymbolLine
Line dry
CareSymbolTumble
Do not tumble dry
CareSymbolWash2
Max wash temp 40°C, mild process
Cert No.
2777__12872_03__E00_00, 0598
Test House
SATRA Technology Europe Ltd
  • Protection against radiant, convective and contact heat
  • Rule pocket
  • Twin-stitched seams for extra durability
  • 3 pockets for ample storage
  • Premium sew on flame resistant reflective tape
  • Half elasticated waist for a secure and comfortable fit
  • 40+ UPF rated fabric to block 98% of UV rays
  • CE certified
  • CE-CAT III

The Bizweld Trouser offers enhanced comfort and performance. Providing excellent welding properties, this trouser gives outstanding multi purpose protection against radiant heat and molten iron splashes. Key features include side pockets, rule pocket and reflective tape at leg ends.

CareSymbolBleach
Do not bleach
CareSymbolDryClean
Do not dry clean
CareSymbolIron
Iron max 150°C
CareSymbolLine
Line dry
CareSymbolTumble
Do not tumble dry
CareSymbolWash2
Max wash temp 40°C, mild process
Cert No.
2777__12872_03__E00_00, 0598
Test House
SATRA Technology Europe Ltd
  • Protection against radiant, convective and contact heat
  • Rule pocket
  • Twin-stitched seams for extra durability
  • 3 pockets for ample storage
  • Premium sew on flame resistant reflective tape
  • Half elasticated waist for a secure and comfortable fit
  • 40+ UPF rated fabric to block 98% of UV rays
  • CE certified
  • CE-CAT III

The Bizweld Trouser offers enhanced comfort and performance. Providing excellent welding properties, this trouser gives outstanding multi purpose protection against radiant heat and molten iron splashes. Key features include side pockets, rule pocket and reflective tape at leg ends.

CareSymbolBleach
Do not bleach
CareSymbolDryClean
Do not dry clean
CareSymbolIron
Iron max 150°C
CareSymbolLine
Line dry
CareSymbolTumble
Do not tumble dry
CareSymbolWash2
Max wash temp 40°C, mild process
Cert No.
2777__12872_03__E00_00, 0598
Test House
SATRA Technology Europe Ltd
  • Protection against radiant, convective and contact heat
  • Rule pocket
  • Twin-stitched seams for extra durability
  • 3 pockets for ample storage
  • Premium sew on flame resistant reflective tape
  • Half elasticated waist for a secure and comfortable fit
  • 40+ UPF rated fabric to block 98% of UV rays
  • CE certified
  • CE-CAT III

The Bizweld Trouser offers enhanced comfort and performance. Providing excellent welding properties, this trouser gives outstanding multi purpose protection against radiant heat and molten iron splashes. Key features include side pockets, rule pocket and reflective tape at leg ends.

CareSymbolBleach
Do not bleach
CareSymbolDryClean
Do not dry clean
CareSymbolIron
Iron max 150°C
CareSymbolLine
Line dry
CareSymbolTumble
Do not tumble dry
CareSymbolWash2
Max wash temp 40°C, mild process
Cert No.
2777__12872_03__E00_00, 0598
Test House
SATRA Technology Europe Ltd
  • Protection against radiant, convective and contact heat
  • Rule pocket
  • Twin-stitched seams for extra durability
  • 3 pockets for ample storage
  • Premium sew on flame resistant reflective tape
  • Half elasticated waist for a secure and comfortable fit
  • 40+ UPF rated fabric to block 98% of UV rays
  • CE certified
  • CE-CAT III

The Bizweld Trouser offers enhanced comfort and performance. Providing excellent welding properties, this trouser gives outstanding multi purpose protection against radiant heat and molten iron splashes. Key features include side pockets, rule pocket and reflective tape at leg ends.

CareSymbolBleach
Do not bleach
CareSymbolDryClean
Do not dry clean
CareSymbolIron
Iron max 150°C
CareSymbolLine
Line dry
CareSymbolTumble
Do not tumble dry
CareSymbolWash2
Max wash temp 40°C, mild process
Cert No.
2777__12872_03__E00_00, 0598
Test House
SATRA Technology Europe Ltd
  • Protection against radiant, convective and contact heat
  • Rule pocket
  • Twin-stitched seams for extra durability
  • 3 pockets for ample storage
  • Premium sew on flame resistant reflective tape
  • Half elasticated waist for a secure and comfortable fit
  • 40+ UPF rated fabric to block 98% of UV rays
  • CE certified
  • CE-CAT III

The Bizweld Trouser offers enhanced comfort and performance. Providing excellent welding properties, this trouser gives outstanding multi purpose protection against radiant heat and molten iron splashes. Key features include side pockets, rule pocket and reflective tape at leg ends.

CareSymbolBleach
Do not bleach
CareSymbolDryClean
Do not dry clean
CareSymbolIron
Iron max 150°C
CareSymbolLine
Line dry
CareSymbolTumble
Do not tumble dry
CareSymbolWash2
Max wash temp 40°C, mild process
Cert No.
2777__12872_03__E00_00, 0598
Test House
SATRA Technology Europe Ltd
  • Protection against radiant, convective and contact heat
  • Rule pocket
  • Twin-stitched seams for extra durability
  • 3 pockets for ample storage
  • Premium sew on flame resistant reflective tape
  • Half elasticated waist for a secure and comfortable fit
  • 40+ UPF rated fabric to block 98% of UV rays
  • CE certified
  • CE-CAT III

The Bizweld Trouser offers enhanced comfort and performance. Providing excellent welding properties, this trouser gives outstanding multi purpose protection against radiant heat and molten iron splashes. Key features include side pockets, rule pocket and reflective tape at leg ends.

CareSymbolBleach
Do not bleach
CareSymbolDryClean
Do not dry clean
CareSymbolIron
Iron max 150°C
CareSymbolLine
Line dry
CareSymbolTumble
Do not tumble dry
CareSymbolWash2
Max wash temp 40°C, mild process
Cert No.
2777__12872_03__E00_00, 0598
Test House
SATRA Technology Europe Ltd
  • Protection against radiant, convective and contact heat
  • Rule pocket
  • Twin-stitched seams for extra durability
  • 3 pockets for ample storage
  • Premium sew on flame resistant reflective tape
  • Half elasticated waist for a secure and comfortable fit
  • 40+ UPF rated fabric to block 98% of UV rays
  • CE certified
  • CE-CAT III

Specifications

Hover over the i icon (if applicable) for more information
Colour
Black

Material Specs

Shell Fabric
Bizweld Work: 100% Cotton
Shell Weight
330g

Specifications are subject to change - See Terms & Conditions for more info