No Standard to Name: How to Specify Tool Bags and Tethers

A procurement manager on an oil and gas account can specify a safety helmet in one line. EN 397, vented, with a chin strap, and the enquiry is effectively finished, because the standard has already decided what the helmet must survive. Then the same manager has to buy two hundred tool pouches and four hundred tool tethers for a shutdown, writes tool bags, heavy duty, two hundred off, and gets three quotations that are not comparable. A canvas carpenter's bag. A coated nylon pouch with a rated attachment loop. A moulded-base holdall at four times the price. Nothing in the enquiry said which was wanted, so each guessed.

That is not the suppliers' failure. It is what happens when a product class has no number to hide behind. For load-carrying equipment the specification is not a reference to a standard, it is the document itself, and whatever the enquiry leaves out is decided at the factory by someone who has never seen the site.

What the one applicable standard does, and where it stops

One standard does treat this hardware as a product class. ANSI/ISEA 121, the American National Standard for Dropped Object Prevention Solutions, was adopted on 2 July 2018 and revised as ANSI/ISEA 121-2023, announced by the International Safety Equipment Association in July 2024. It covers four categories of active control: anchor attachments, tool attachments, tool tethers, and containers, where tool bags, buckets and pouches sit. For each it sets minimum design, performance, testing and labelling requirements, and it applies to tethering systems fitted to tools and anchors after original manufacture.

Read the exclusions, because that is where enquiries go wrong. The standard does not cover primary tools, primary anchors such as the structure or the worker's own body, passive measures such as netting, barricades and toe boards, or head, foot and eye protection. Nor does it cover hoisting or lifting for material handling, so the moment a bag goes up on a rope instead of being carried it has left the standard's scope and the lifting arrangement needs specifying separately. ANSI/ISEA 121 is also voluntary, not a mandatory conformity scheme in any market, so naming it is a procurement decision the buyer takes rather than a default the supplier applies unasked.

What it never claims to do is tell you whether a fabric survives a year of hydrocarbon exposure, whether a base survives grating, or whether the zip still closes in month four. Only the specification answers that.

Why an oil and gas buyer cannot delegate this

Dropped objects are a hazard class with an entire prevention apparatus built around them. DROPS, the Dropped Objects Prevention Scheme, is a global work group of around two hundred operators, contractors, service companies and industry bodies, publishing inspection programmes, checklists and guidance. An industry does not assemble that around a nuisance.

The arithmetic is why. In Safety Alert 56, issued in April 2013, the Australian offshore regulator NOPSEMA reviewed nine dropped object notifications from that year's first quarter, in which objects of 2 kg to 2,300 kg fell from under one metre to 43 metres. Applying the DROPS Calculator, it found six of those events could have caused a fatality, and that a 700 g object falling 15 metres could be fatal. Seven hundred grams is a shifting spanner. Fifteen metres is an ordinary scaffold.

That is what makes a tool pouch a control rather than a consumable, and a control bought against a one-line enquiry is an assumption made by a factory nobody told the drop height.

The six things the specification has to fix

First, the fabric, in three parts: fibre, construction and coating. Denier is the count the trade quotes, and it describes linear density: how heavy the yarn is per unit of length. It is not a strength rating, and the international designating system for linear density is in any case the tex system of ISO 1144:2016. State the fibre, polyester or nylon, the count, the weave, then the coating by material, by the face it sits on and by what it is for, because water resistance and abrasion resistance are not the same requirement.

Second, the base. Most tool bags fail from the bottom up. Say whether it is a moulded panel, a reinforced doubled fabric or plain stitched, and say what it will stand on: a bag that lives on grating and one on a workbench are different products.

Third, the hardware. Zips, buckles, rings, webbing and stitching are where cost comes out when the enquiry is silent. Name the closure type and the webbing width, and state for every attachment point whether it is load rated or decorative. An unrated ring on a bag that will be tethered is the most expensive omission on this list.

Fourth, the load and the layout. Give the supplier the contents: which tools, what total mass, how many pockets at what depth, and whether the bag must close and carry when full. A layout designed around a tool kit nobody described is designed around nothing.

Fifth, the tethers and the attachment points, which is where ANSI/ISEA 121 earns its place. Require tethers and anchor attachments rated to ANSI/ISEA 121, say which of the standard's categories each item falls in, and require the marked capacity on the product and in the manufacturer's documentation. Check that capacity against the heaviest item a tether will carry, not the average one. If any container will be hoisted, specify that arrangement separately, because the standard does not reach it.

Sixth, marking, documentation and inspection. Ask for the labelling and the manufacturer's instructions as deliverables, including inspection intervals and the conditions that shorten service life. The guidance behind the standard is explicit: components are inspected before each use, worn or drop-damaged parts come out of service, and temperature extremes, ultraviolet, salt, chemicals and heavy use all degrade them. A buyer who never asked for that documentation has bought equipment that cannot be inspected against anything.

There is no certificate to ask for, so ask for the right evidence

A recurring stall in these enquiries is a request for a certificate that cannot exist. Regulation (EU) 2016/425, adopted on 9 March 2016, defines personal protective equipment as equipment designed and manufactured to be worn or held by a person for protection against one or more risks to that person's health or safety. A tool bag is not that, and a dropped object tether sits further away still, because its function is to protect the people underneath rather than the person wearing it. Read against that definition this hardware falls outside the PPE route, and a buyer who insists on a PPE certificate gets either silence or a document covering something else.

The evidence that does exist suits the purpose better: the manufacturer's test report against ANSI/ISEA 121 for the rated items, the marked capacity, the material and coating specifications for the fabric, and a sealed sample approved against the written specification before bulk production. Confirm the documentary position for your destination with your customs broker.

The checklist to send

Put these eleven lines in the enquiry and the quotations become comparable. Fibre, yarn count and weave. Coating material, face and function. Base construction and the surface it will sit on. Closure type and hardware specification. Webbing width, and for every attachment point, rated or not rated. Contents, total mass, pocket count and depth. For tethers and anchor attachments, rated to ANSI/ISEA 121, with the category and the marked capacity stated. Any hoisting arrangement, specified separately. Labelling, manufacturer's instructions and inspection intervals as deliverables. Quantity, destination and required delivery window. A sealed sample approved before bulk production.

We write that document with buyers more often than we receive it, and it decides whether the quotations mean anything. So send the operational picture rather than a product name: how many people, carrying what, at what height, in what conditions, by when, and to which destination. We turn that into a specification a qualified factory can price, qualify producers before any is invited to quote, compare offers on compliance before price, and follow production and inspection through to delivery. If you are buying tool bags or tethers this quarter, submit the requirement and let the specification be the part that is written down.