Quality & Testing
Verifiable,not asserted.
If you have been burned before by drifting silt content or off-spec fines, this is the page that matters. Everything below is a process we run, not a promise we make.
- Technique
- ICP-OES
- Method standard
- IS 1917
- Oxides reported
- 12
- Certificate
- Per batch
Certificate of analysis
One certified batch,shown in full.
Figures from a single third-party certified sample. They are not a guaranteed specification for every despatch — each order is certified on its own batch.
- Laboratory
- Independent NABL-accredited third-party laboratory
- Technique
- ICP-OES
- Method standard
- IS 1917 (Parts 1–3)
- Report reference
- Report 008
Representative certified batch
ICP-OES · IS 1917 (Parts 1–3)- Fe2O3Iron oxide
- 0.18%
- Al2O3Aluminium oxide
- 0.40%
- CaOCalcium oxide
- 0.06%
- MgOMagnesium oxide
- 0.03%
- LOILoss on ignition
- 0.10%
0%Trace oxide scale0.5%
Figures from a single third-party certified sample. They are not a guaranteed specification for every despatch — each order is certified on its own batch.
Scope of assay
Twelve oxides,every test.
Not just the headline purity figure. The full oxide suite is reported, which is what lets a glass or foundry buyer qualify the material rather than taking one number on trust.
- 0199.15%SiO2Silicon dioxide
- 020.18%Fe2O3Iron oxide
- 030.40%Al2O3Aluminium oxide
- 040.06%CaOCalcium oxide
- 050.03%MgOMagnesium oxide
- 06MnOManganese oxide
- 07Na2OSodium oxide
- 08K2OPotassium oxide
- 09TiO2Titanium dioxide
- 10V2O5Vanadium pentoxide
- 11P2O5Phosphorus pentoxide
- 120.10%LOILoss on ignition
Values shown where reported on the certified batch above
Process control
Where the checkshappen.
Four gates between the screen deck and your intake. A lot that fails one does not move to the next.
- 01
Inline sampling
Material is sampled from the screening circuit rather than from the finished stockpile, so the sample reflects the cut as produced.
- 02
Sieve analysis
Particle size distribution is verified against the target band for the grade before the lot is released to the yard.
- 03
Third-party chemical assay
Chemical composition is determined by an independent accredited laboratory using ICP-OES, referencing IS 1917 (Parts 1–3).
- 04
Certificate on despatch
A certificate of analysis is issued against the despatched batch, on request at the time of order.
Standards
What we test against.
Bureau of Indian Standards
IS 1987:2002
High Silica Sand for Use in Foundries
Grades A / B / C classification. Grade designation to be confirmed — see CONTENT-TODO.md.
Bureau of Indian Standards
IS 1917 (Parts 1–3)
Methods of Sampling and Test for Foundry Sands
The method our third-party assays are run against.
Enquiries · reply within one business day
Want the certificate before you order?
We will send a certificate of analysis for the current production batch, along with a sample if you need to run your own assay.
Request a certificate