ASTM F860-24
Standard Specification for Hot Water Sanitizing Commercial Dishwashing Machines, Multiple Tank, Rackless Conveyor Type

Standard No.

ASTM F860-24

Release Date

2024

Published By

American Society for Testing and Materials (ASTM)  US  /  ASTM

Latest

ASTM F860-24

Introduction

Core Technical Requirements of the Standard

Technical Dimensions	Type I	Type II	Test Method
Feed Direction	Right Feed	Left Feed	Visual Inspection
Conveyor Belt Width	22.5-31 inches (571.5-787mm)		Caliper Measurement
Processing Capacity	5000-11800 pieces/hour		F1920 Test Method

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Key Material Specifications

The standard requires that primary contact surfaces be made of 300 series stainless steel (A276/A167) with a thickness of at least 0.055 inches (0.0021mm).

Style 1 Steam Heating System

Working pressure 15-25psi (137.8-241.3kPa), equipped with tubular heat exchanger or steam ejector, requirements:

• Temperature regulator accuracy ±2°F
• Low water level protection device
• Maximum pressure does not exceed 50psi (345kPa)

Style 2 Electric Heating System

Uses UL 1453-certified heating elements. Critical Control Points:

• Power matches NEMA MG-1 standard
• Automatic temperature compensation function
• Anti-dry burn protection

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Implementation Recommendations

1. Selection Guide: Select Group A/B/C based on dishware processing capacity. Catering companies recommend Group B (8,700 pieces/hour)
2. Installation Requirements: The drain pipe must maintain a 2-inch (50.8mm) air gap, and the steam pipe must be equipped with a pressure reducing valve.
3. Maintenance Points: Check the spray arm for blockage every 200 hours and calibrate the temperature sensor monthly.
4. Certification Preparation: Apply for both UL 921 and NSF/ANSI certifications. 3 certification, preservation of material certification documents

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Technological Evolution Analysis

Main changes compared to the 2018 version:

• Added Class C/D classification for Gas Heating System (Style 3)
• Strengthened requirements for conveyor belt anti-pinch mechanism
• Updated NSF 29 regulations on automatic dosing of cleaning agents
• Clarified noise test points (2 feet from the equipment/5 feet above the ground)