Bison Product Guide Edition 2.0 - Flipbook - Page 60
OVERALLS FAQ’S
CODE OF PRACTICE FOR TEMPORARY TRAFFIC
MANAGEMENT (COPTTM) - TTMC-W17
SHOULD I WEAR A POLYCOTTON OR COTTON OVERALL?
This depends on your preference, nature of work and
environment. The below summarises the difference between
the two fabrics:
- Polycotton is a blend of natural cotton and synthetic
polyester. The benefit of polycotton is the balance between
breathability (cotton) and durability (polyester).
- Cotton is a natural fibre which is soft and breathable and
known to be hypoallergenic. Being breathable means it is
perfect for hotter conditions.
CoPTTM describes best practice for the safe and efficient
management and operation of temporary traffic management
(TTM) on all roads in New Zealand.
The Waka Kotahi (NZTA) CoPTTM specifies two main colours
with regards to use on New Zealand roads:
• Yellow: Garments for site traffic management supervisors STMS; and
• Orange: Garments for all wearers other than supervisors.
STAYING COMPLIANT IN TTMC-W17 GARMENTS
• TTMC-W17 garments must not display any lettering/
symbols/logos on any compliant high visibility material
except within an area located on the wearer’s upper front left
side of the garment. The maximum area permitted is
7500mm2 (e.g.100mm x 75mm).
• Garment designs that include a clear plastic pocket or
similar must locate this pocket within the described
maximum 7500mm2.
• Where required for related safety reasons a fabric’s technical
recognition I.D. may be added in an area not exceeding
30mm x 30mm (900mm2) to the wearer’s upper front right
side of a garment (such as PPE/HRC high risk rating).
• A manufacturer’s label to a maximum size of 50mm x 20mm
may be sewn or printed on non-compliant material on the
lower sleeve or leg.
• Any buttons, domes or similar closure devices that are
placed on compliant material must match the colour of
the garments.
STMS GARMENTS
• The STMS sleeveless vest enables the person responsible at
a worksite to be readily identified.
• The background material colour must be fluorescent yellow.
• STMS garments are limited to the STMS logo located on the
upper front left side of the garment and as specified on the
back of the garment and the technical recognition I.D. as
appropriate. Other logos or labels may not be added.
AS/NZS 4602.1:2011 - HIGH VISIBILITY SAFETY
GARMENTS STANDARD
AS/NZS 4602.1:2011 is a joint Australian and New Zealand
standard covering high visibility safety garments.
The standard specifies visual requirements of hi-vis safety
garments, and refers to AS/NZS 1906.4:2010 for fabric and
tape used in the products.
60 / Bison Workwear Edition 01
AS/NZS 4602.1:2011 + AMDT 2:2020 CLASS DN
Class DN are garments designed for day and/or night time use.
These garments are the most common and are a combination
of compliant background material and retro-reflective tape.
AS/NZS 4602.1:2011 + AMDT 2:2020 CLASS D
Class D are garments designed for daytime use only. These
garments have compliant background material, but no retroreflective tape.
AS/NZS 4602.1:2011 + AMDT 2:2020 CLASS N
Class N are garments designed for night time use only. Class
N has no fluorescent fabric but does have retro-reflective tape.
Class N provides the wearer with high visibility at night when
viewed under retro-reflected light such as vehicle headlights.
AS/NZS 1906.4:2010 - HIGH VISIBILITY MATERIALS FOR
SAFETY GARMENTS
This standard specifies the requirements for high-visibility
materials for outdoor daytime use, or retro-reflective materials
for use at night or in other dark conditions. Designed to be
worn in situations where the wearer needs to be highly visible.
The standard specifies minimum colour and luminance
requirements for fluorescent (F), non-fluorescent (NF)
and retro-reflective materials.
CLASS F (FLUORESCENT BACKGROUND MATERIAL)
Refers to fluorescent fabrics which have the ability to retain
fluorescent pigment. Often, but not limited to, man-made
fibres such as polyester and plastic coatings.
CLASS NF (NON-FLUORESCENT BACKGROUND MATERIAL)
Refers to Non-fluorescent background material. Class NF
materials do not have the fluorescent properties of class F
materials and will provide reduced luminance for the wearer.
Where for safety reasons a garment must be made from
natural fibre which is unable to retain fluorescent colour class
NF fabric can be used. These are often, but not limited to,
cotton and FR blends.
ARE THERE WINTER AND SUMMER OVERALLS?
Overalls are year round garments. We do use some specific
fabrics: 190-210gsm fabrics which may be more comfortable
in the summer, and heavier fabrics 240-310gsm that may be
warmer during the winter months.
Because overalls are meant to be worn over garments a lot
of what keeps you comfortable is what you wear underneath.
We suggest in summer lightweight shorts and t-shirts or
singlets, and in the winter all your base layer plus trousers and
a sweatshirt. You may want to wear an overall a size up in the
winter to comfortably fit layers.
WHAT ARE THE TELL-TALE SIGNS MY OVERALLS ARE NO
LONGER COMPLIANT?
The most obvious signs of non-compliance are faded hivis fabrics and reflective tape that has become hazy, or is
otherwise damaged. The best way to protect garments is to
wash regularly, following care instructions and to store them
out of direct sunlight. A garment repeatedly exposed to direct
sunlight will fade and breakdown at an accelerated rate. When
garments are not in use we recommend storing in a clean dark
place like a locker, cupboard or gear bag.
OVERALLS
OVERALLS
OVERALLS STANDARDS EXPLAINED
WHAT IS A YKK NON-CONDUCTIVE TWO-WAY ZIP?
A zip made of plastic with two sliders (heads), that can be
opened from the top or the bottom that is non-conductive e.g.
not able to conduct heat or electricity.
WHY X BACK TAPE DESIGN OVER H TAPE DESIGN?
The X back tape design was brought in to help differentiate
the front to back of a worker who may be working at night or
in low light. Standard H tape designs are the same at the front
and back. Utilizing the X back design means you can easily
distinguish whether a wearer is facing you or has their back
to you.
WHAT IS UPF CLOTHING?
The UPF (Ultraviolet Protection Factor) is a numerical rating
given to clothing to indicate how effectively the fabric blocks
ultraviolet (UV) radiation. A UPF rating of 30 and over is classed
as a ‘Very Good’ protection blocking about 96.0 – 97.4% of UV
radiation. A UPF rating of 50 and over is classed as ‘Excellent’
protection blocking about 97.5% or more of UV radiation.
Darker colours generally offer a greater protection against
UV radiation.
DO YOU BRAND GARMENTS?
We don’t do branding, but your Territory Manager can give you
contacts of branding companies we recommend. Branding on
indent orders is possible in some cases.
WHAT WARRANTY DO OVERALLS HAVE?
For warranty info please visit our website:
www.paramountsafety.co.nz/warranties
AS/NZS 4399:2017 - SUN PROTECTIVE CLOTHING
Products have been tested to the Australian/New Zealand
standard for sun protective clothing AS/NZS 4399:2017
(Ultraviolet Protection Factor).
www.paramountsafety.co.nz / 61
