Msa Safety 0021-0018 True Spot Smoke Scale

Product Description

The MSA SAFETY 0021-0018 is a smoke scale designed for use with True Spot smoke test sets. It provides a standardized reference card for comparing combustion flue gas soot levels against graduated smoke density readings. Combustion technicians and HVAC service professionals use this scale to evaluate the results of a smoke spot test, helping determine whether a burner is operating within acceptable efficiency and emissions parameters. The 0021-0018 is a direct-use accessory that integrates into the True Spot smoke testing workflow without additional tools or calibration steps.

This smoke scale is used during routine combustion analysis on oil-fired heating equipment, including residential and light commercial boilers and furnaces. It is a standard reference tool for HVAC technicians performing annual tune-ups, efficiency testing, or emissions checks on oil burner systems. The scale allows the technician to visually compare the collected soot sample against the printed density gradient to assign a numerical smoke spot reading.

Key Features

• Standardized smoke density reference scale for True Spot smoke test sets
• Used for visual comparison of soot samples from oil-fired combustion equipment
• Supports accurate smoke spot number assignment during combustion analysis
• Compact, direct-use format requires no calibration or additional instruments

Compatibility

Designed for use with MSA Bacharach True Spot smoke test sets. No additional compatible model numbers were specified in the product data.

Installation Notes

This accessory is handled by qualified HVAC or combustion technicians during flue gas analysis procedures on oil-fired appliances. Shut down the burner and allow the system to cool to a safe handling temperature before accessing flue passages or sampling ports. No mechanical installation is required. Follow applicable local and national combustion equipment service codes when performing burner tune-up and emissions testing.

Technical Specifications

• Application: True Spot smoke test sets

Standard Information

• Brand: MSA SAFETY
• Manufacturer Part Number: 0021-0018