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Testing Services
Metallurgical testing
Composition, hardness and coating thickness measured on the part in your hand rather than read off the mill certificate that travelled with it.
- What we run
- 8
- NABL accredited scope
- 3/8
- Standards applied
- 5
A material certificate describes a heat, not the part in front of you. These eight tests close that gap in house, on ferrous and non-ferrous alloys, reported against the ASTM or IS material standard your specification names.

What we run
NABL accredited scope 3/8
Chemical composition by spectrometry
NABL Accredited Test Laboratory | ISO/IEC 17025:2017 | TC-16263
Full elemental analysis by optical emission spectrometry, which is what turns a claimed grade into a measured one.
Chemical composition by PMI
Alloy verification on the finished part, run before dispatch on our own work and available on parts you send us.
Rockwell hardness
NABL Accredited Test Laboratory | ISO/IEC 17025:2017 | TC-16263
Bulk hardness on the indentation scale most material specifications are written in, for stock and for finished bodies.
Micro Vickers hardness
NABL Accredited Test Laboratory | ISO/IEC 17025:2017 | TC-16263
Surface and near-surface hardness at low load, which is the only way to characterise a case, a weld heat-affected zone or a thin section.
Plating thickness
Coating measured from 2 to 25 microns, because a plating class is a thickness claim before it is a corrosion claim.
Viscosity
Kinematic viscosity of the fluid a connection is qualified for, by the standard capillary method.
Water absorption
Uptake by mass for non-metallic components, where a seal or a body that swells is a dimensional problem rather than a chemical one.
High voltage test
Dielectric withstand on the high-voltage machine, for insulating components and for assemblies that have to isolate as well as seal.
Standards applied
ASTM E18
Rockwell hardness of metallic materials.
ASTM E384
Knoop and Vickers hardness of materials, under which the micro Vickers surface measurements are made.
ASTM D445
Kinematic viscosity of transparent and opaque liquids.
ASTM D570
Water absorption of plastics.
IEC 60060
High-voltage test techniques, for the dielectric withstand programme.
What we can show
Spectro and Oxy-Clean under one roof
Chemical analysis and the oxygen-cleaning facility are both in house, so a part destined for oxygen service can be cleaned and have its material verified without leaving the site.
Oxy-Clean certification to ASTM G93, G131 and G127
Fluid Controls publishes an Oxy-Clean certification for its double-ferrule fittings against the oxygen-service cleaning guide, the ultrasonic cleaning method and the cleaning-agent selection practice.