AS NZS 1891.1:2020 pdf download.Personal equipment for work at height Part 1: Manufacturing requirements for full body combination and lower body harnesses.
2.1 General
This Section specifies requirements for webbing, rope, thread and hardware used as a component of a harness.
Natural fibres and materials, other than those meeting the requirements specified in Clause 2.2, shall not be used for load bearing components, but may be used for other purposes such as, but not limited to, wear protection, alignment or padding.
All ancillary, non-load bearing components should be designed to be replaceable or last the life of the harness.
2.2 Webbing and thread
2.2.1 General
All harness load bearing components which distribute force to the body and are in contact with it shall be made from webbing or material equivalent to webbing in respect of strength, durability and load transfer characteristics.
2.2.2 Design and construction
Webbing shall be manufactured from high tenacity synthetic fibre.
The width of the load transfer area of any load-bearing material at any point which distributes the load directly to the body shall not be less than 40 mm wide and shall remain substantially flat in regular use. The load transfer area is the section of the harness in contact with the body.
Holes, rivets or eyelets shall not be used in load bearing webbing.
Threads for sewing load bearing components shall be of a contrasting colour to the webbing.
NOTE The thread should be manufactured from high tenacity synthetic fibre and have a melting point and
chemical resistance equivalent to or superior to the material being sewn.
2.2.3 Performance requirements
Loadbearing webbing shall be tested in accordance with Appendix A for resistance to degradation by either artificial light or daylight.
When tested in accordance with Appendix A the minimum breaking strength of the three exposed samples shall be at least 70 % of the mean of the breaking strength of the three unexposed samples.
2.3 Attachment hardware and adjusters
2.3.1 General
All attachment hardware, and adjusters shall be as follows:
(a) Designed and tested (i.e. type tested and routine tested as appropriate) to meet the applicable strength requirements for their application as specified in Clauses 2.3.3 to 2.3.5.
(b) Protected from corrosion in accordance with Clause 2.3.2.
(c) Free from any material or manufacturing defects.
(d) Designed to minimize damage to webbing.AS NZS 1891.1 pdf download.