Cordage Institute

  1. The Cordage Institute: Fiber Rope Requirement Criteria

    The Cordage Institute: Fiber Rope Requirement Criteria

     

    The Cordage Institute

    When it comes to working at-height, inspecting your equipment can make all the difference in job site safety. We’ve covered rope inspection in a previous blog post. You can find that post by clicking here. This week our Gear Experts® are going to provide a broad overview of the organization that sets standards for inspection.

    The Cordage Institute


     

    Fiber rope standards are established by an organization called the Cordage Institute. The Cordage Institute was founded in 1920 and is comprised of a group of fiber rope manufacturers, their suppliers, and affiliated end-user organizations. While the cordage institute sets a wide variety of standards for a wide variety of uses, the standard that is of interest to our industry is the International Guideline for Fiber Rope Inspection and Retirement Criteria – specifically section 4 (CI 2001-04).

    In this post, we're giving a brief overview of the subject matter discussed in the Fiber Ropes, General Standard (CI-1201) which covers the general characteristics and requirements for all fiber cordage and ropes which you can order in full here.

    CI-1201


     

    As we mentioned above, CI-1201 covers the general characteristics and requirements for all fiber cordage and ropes. We'll touch on characteristics that are tested for like Minimum Breaking Strength (MBS), Working Load Limits (WLL), and Safety Factor and the different packaging requirements for commercial use.

    Rope Packaging Labels for Commercial Use

    When buying rope, a unit should have a label noting the product description, diameter/size, weight/length, material, minimum breaking strength (MBS) or working load, the manufacturer's name and address, and country of origin.  This is the basic set of variables you need to know to estimate how your rope will or will not work in a given scenario.

     

    Minimum Breaking Strength

    Simply put, minimum breaking strength (MBS) is the lowest amount of force required to break an object. As mentioned, MBS should be listed on the packaging label.

    Working Load Limit

    In order to determine the Working Load Limit (WLL), you will need to know the Minimum Breaking Strength. Each manufacturer's ratings are different due to different construction processes and materials. To figure for WLL, you will take the MBS and divide it by the Factor of Safety.  

    Factor of Safety

    The default safety factor to which synthetic rope can be subjected is one-tenth (10%) of the manufacturer's documented MBS. It's worth noting that the safety factor accounts for strength reductions associated with knotting/termination and losses in strength and efficiency as the rope passes through sheaves. This should help to explain why the safety factor exceeds the more common 5:1 factor found regularly in ASME B30 for other rigging components.

    So, if you have a 1/2'' Double Braid Polyester rope with an MBS of 11,000 lbs., and dividing your default safety factor of 10, you end up with a WLL of 1,100 lbs.

    11,000 MBS / 10 = 1,100 WLL

     

    More Rope Information:

    Get a free downloadable rope log or learn more about ropes in our Knowledge Base.

    If you’ve got any questions about rope, rope inspection, or rope retirement, click here to contact one of our Gear Experts®.

    Click here to see our full selection of rope.

    Click here to download your free rope inspection log.

    Click here to see all of our rope focused blog posts.

    **The content of this blog is not intended to replace proper, in-depth training. The manufacturer’s instructions must also be followed and reviewed before any equipment is used. The use of rope and cordage products has inherent safety risks which are subject to highly variable conditions and which may change over time.

    Compliance with standards and guidelines of the Cordage Institute does not guarantee safe use under all circumstances, and the Institue disclaims any responsibility for accidents that may occur. if the user has any questions or uncertainties about the proper use of rope or cordage or about safe practices, consult a professional engineer or other qualified individuals.

    Rope Videos: The Playlist


     

    Gear Up with Gear Experts: The Podcast


     

    If you haven’t already checked out Gear Up with Gear Experts, our podcast dedicated to at-height, industry, and construction, it is available for download! You can find it on all major podcast listening platforms like Apple Podcasts, Spotify, Google Play Music, + your favorite podcatcher of choice. And, you can head on over to gearexperts.com to follow us on social media, check out our detailed show notes, and sign up for updates.

     

    Get Social


     

    Be sure to follow us on social media to keep up with everything GME Supply has going on.

    Facebook | Instagram | YouTube | Twitter | LinkedIn

    We’re Also on Snapchat


     

    Simply snap or screenshot this image ↓ to follow GME Supply!

  2. The Cordage Institute: Fiber Rope Inspection & Retirement Criteria

     

    The Cordage Institute

    When it comes to working at-height, inspecting your equipment can make all the difference in job site safety. We’ve covered rope inspection in a previous blog post. You can find that post by clicking here. This week our Gear Experts® are going to provide a broad overview of the organization that sets standards for inspection.

    The Cordage Institute


     

    Fiber rope standards are established by an organization called the Cordage Institute. The Cordage Institute was founded in 1920 and is comprised of a group of fiber rope manufacturers, their suppliers, and affiliated end-user organizations. While the cordage institute sets a wide variety of standards for a wide variety of uses, the standard that is of interest to our industry is the International Guideline for Fiber Rope Inspection and Retirement Criteria – specifically section 4 (CI 2001-04).

    CI 2001-04


     

    As we mentioned above, section four covers fiber rope inspection and retirement criteria. This section is further broken down into sub-sections that outline the different requirements for an effective inspection and retirement program.

    4.1.1

    Section 4.1.1 states that the user is responsible for establishing a program for inspection and retirement that considers conditions of use and degree of risk for the application. It outlines that a program should include:

    • Assignment of supervisory responsibility. Meaning that an individual should be made responsible for establishing the program, training and qualifying inspectors, and preserving records;
    • Written procedures;
    • Training;
    • Record keeping;
    • Establishment of retirement criteria for each application; and
    • Inspection schedules

    4.1.2

    Section 4.1.2 states that ropes that secure or control valuable assets or whose failure would cause serious damage, pollution, or threat to life warrant more scrutiny than ropes in non-critical use. It goes on to state that if a fiber rope is used in a highly demanding application, with potentially critical risks, the advice of a qualified person should be obtained when developing the specific inspection and retirement program.

    4.1.3

    Section 4.1.3 states that the user should continue to revise and refine the program based on experience.

    CI 2001-4.3


     

    Section 4.3 covers rope inspections logs. We have talked about the importance of a rope inspection log in this previous blog post. This section states “An important tool for rope evaluation is a log. This will include data on the type of rope, time in service and description of intended use. The details of every inspection should be entered in the log as to date, location and conclusions. The log should include a regular inspection schedule”.

    Most rope manufacturers include a rope log with their rope. However, if you don’t think it did, or you have lost it, we provide a free downloadable rope log in our Knowledge Base.

    CI 2001-5.1.1


     

    Section 5.1.1 covers rope tags. This is a tag that is attached to the rope that outlines the rope, model number, manufacturing date, MBS, and manufacturer. If this tag is illegible the rope should be retired immediately. If the rope does not come with a tag you can make your own. Also, using shrink tube is an inexpensive solution to attach your tag to a rope and keep it protected.

    Rope Inspection


     

    Section 6 outlines rope inspection. We took a deep dive into rope inspection in this previous blog post. It also talks about rope care & maintenance – like rope wash which we talked about in this blog post. Last, but not least, it covers proper rope storage. We covered rope storage in this blog post.

    Rope Retirement


     

    If a rope’s tag is illegible or if it no longer passes inspection, it is time to retire the rope and purchase a new one. Rope retirement doesn’t mean just throw the rope back in your truck or trailer, it means cutting the rope into pieces so small that it would no longer be useful for a crew to try and use.

    If you’ve got any questions about rope, rope inspection, or rope retirement, click here to contact one of our Gear Experts®.

    Click here to see our full selection of rope.

    Click here to download your free rope inspection log.

    Click here to see all of our rope focused blog posts.

    **The content of this blog is not intended to replace proper, in-depth training. Manufacturer’s instructions must also be followed and reviewed before any equipment is used.

    Rope Videos: The Playlist


     

    Gear Up with Gear Experts: The Podcast


     

    If you haven’t already checked out Gear Up with Gear Experts, our podcast dedicated to at-height, industry, and construction, it is available for download! You can find it on all major podcast listening platforms like Apple Podcasts, Spotify, Google Play Music, + your favorite podcatcher of choice. And, you can head on over to gearexperts.com to follow us on social media, check out our detailed show notes, and sign up for updates.

     

    Get Social


     

    Be sure to follow us on social media to keep up with everything GME Supply has going on.

    Facebook | Instagram | YouTube | Twitter | LinkedIn

    We’re Also on Snapchat


     

    Simply snap or screenshot this image ↓ to follow GME Supply!

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