Acetylene, Instrument Grade

Acetylene Instrument Grade — Stable Fuel Gas for FAAS & Lab Use

Coregas acetylene-instrument-grade is selected for laboratory applications (e.g., flame atomic absorption) where burner stability and background control matter. It’s supplied as acetylene (dissolved) in cylinders, with handling, storage and transport requirements consistent with our industrial product—use laboratory-rated regulators and flashback protection matched to acetylene service.

For instrument work, request a Certificate of Analysis / product specification from your Coregas representative to confirm the grade meets your method limits and QC policy.

Where Instrument-Grade Acetylene Fits

• Flame AAS fuel gas for common elements (method-dependent)
  
• Laboratory burners/process rigs requiring controlled flame chemistry
• Calibration/QA environments where baseline drift and burner deposits must be minimised

Handling, Storage & Controls (Laboratory Focus)

• Extremely flammable; explosive risk persists even without air; treat lines and spaces as potential explosive atmospheres during leaks.
• Do not open a cylinder without a regulator attached; regulator and equipment must be compatible with acetylene and rated for the required flow/pressure.
• Never “sniff” acetylene; if an outlet needs checking, blow out with clean compressed air or nitrogen as per SDS.
• Storage: Upright, restrained, dry and ventilated; below 65 °C; away from ignition sources and traffic routes; protect from sunlight.
• Incompatibilities: Avoid copper alloys >65 % Cu, silver and mercury to prevent acetylide formation.
• Fire response: Cool from a protected position; Hazchem 2SE; follow in-house lab emergency procedures.

Transport & Regulatory

• Classified as UN 1001 — ACETYLENE, DISSOLVED, Dangerous Goods; follow NZS 5433 and laboratory transport policies (separation, securing, ventilation).

FAQs — Instrument-Grade Acetylene

How is instrument grade different from industrial grade?

Instrument grade is controlled for laboratory use and analytical method requirements; both grades share the same core safety/hazards as acetylene (dissolved). Confirm analytical specs/impurities via CoA for your method.

Can I use industrial acetylene on a flame AAS?

Not recommended unless your lab has validated it. Use acetylene-instrument-grade with documented specs for QA/traceability.

What regulators are suitable?

Use a fuel-gas regulator rated for acetylene and the instrument’s required flow/pressure; attach a regulator before opening the valve and ensure all equipment is compatible with acetylene.

What should I avoid in the gas train?

Avoid copper alloys >65 % Cu, silver and mercury—acetylides can form and become explosive.

What are the main hazards to brief staff on?

Extremely flammable, explosive risk even without air, asphyxiant in high concentrations. Train for leak response and evacuation.

How should cylinders be stored in the lab compound?

Upright, secured, ventilated, below 65 °C, marked No Smoking/Open Flames, away from exits and traffic.

What happens at end-of-life?

Return cylinders to Coregas; do not vent or attempt to dismantle.