Knowledge base
Testing & Indian Compliance
Proof load testing, test certificates and the Indian regulatory framework around them: who recognises the competent person in a factory, at a port and on a construction site, statutory registers and certificates, and the IS standards a purchase order should cite. Written from inside our own test house and its 1,200 T proof-load test bed.
11 guides
What Standard Does HMPE Rope Come Under?
India has no BIS standard for HMPE rope. What IS 14928 and IS 9944 actually cover, where ISO 10325 and ISO 2307 fit, and what a purchase order and a test certificate have to carry instead.
Inspecting and Retiring HMPE Rope
The steel discard rules do not transfer to a braided fibre rope, and no Indian Standard replaces them. What a competent person actually looks for on an HMPE rope, what the rope maker's published criteria say, and how often to look.
Cable-Laid Grommets and Cable-Laid Slings
What a cable-laid grommet is, how one is formed and hand-spliced, why the core is laid in and never cut out, how its rated capacity is arrived at, and which documents govern it in India.
Load Testing Explained: Proof Load, Break Load and Periodic Tests
Proof load vs break load testing, why the proof factor depends on the product standard, periodic examination in India, and our 1,200 T proof-load test bed.
IS Standards for Lifting Equipment in India
Which IS standard covers which lifting gear: IS 2760 chain slings, IS 6215 Grade 80 chain, IS 3832 chain blocks, IS/ISO 2415 shackles, IS 2266 wire rope, and more.
How to Read a Lifting Equipment Test Certificate
Read and verify a lifting equipment test certificate field by field — identification, rating, proof load and its standard, examiner and register checks.
WLL vs SWL Explained: Are They the Same?
WLL and SWL name the same rated capacity. Learn where each term comes from, how it relates to proof load and MBL, and how to read a sling tag correctly.
DGFASLI & Factories Act Compliance Explained
Who recognises the competent person for lifting gear in India — state Chief Inspector of Factories, DGFASLI for docks — and the 6- and 12-month examination cycles.
EN 1677 & EN 818 Chain Sling Standards
What EN 818 (short-link chain) and EN 1677 (sling components) cover, how they map to IS 6215 and IS 2760 in India, and how to verify compliance markings.
Form 5 & Form 11 Certificates Explained
What Sealinkers' Form 5 and Form 11 lifting-gear certificates record, how they fit the Factories Act examination cycle, and why form numbers differ by state.
Wire Rope Inspection Checklist & Discard
Full wire rope inspection checklist for Indian sites — broken wires, corrosion, diameter loss, bird caging — with IS 3973 and ISO 4309 discard guidance.