Hi all,
I am after your expertise to check on the understanding for obtaining the tolerances for a Master spec for Bulk density. The raw material in question is in Powder form and can be supplied by multiple suppliers. The aim is to ensure a specification is available when sourcing from new suppliers. I already know that current bulk density spec range is to broad so I need to come up with a logic to tighten the spec ( a lower density = float more and struggle to fit the required weight into pack, a higher density = sinks in easily and OK during packing)
Options:
- Do I collect bulk density figures tested on-site from raw materials and compare against the chemistry macro tolerances to confirm what needs to go on the master spec?
- Should I use the suppliers Bulk Density figures from their specification to decide the tolerances ( we have multiple suppliers and every supplier has a min-max range which varies)
To be noted: Supplier are using an industry standard approved method, so then we know all suppliers measure the same way. We are also looking to implement an internal method to match this standard so we can test at intake and verify the bulk density for each delivery.
"My point of view; I'd say I need to have this based upon supplier specs, internal testing data could jeopardy supply chain eg. if testing has been done and comes out on figures on the upper level of existing suppliers’ tolerance, and then these are applied, we'd be rejecting all batches falling outside of this, even though they're perfectly acceptable and within the expected variation for that product. I'd also say that supplier would likely not amend product density based upon our results"
Would be great to hear your thoughts. I am based in UK . Thank you 😊
