Where are the testing methods for crazing and water absorption found?

All primary material and performance testing methods are specified in IS 771 (Part 1).

What is the acceptable dimensional tolerance for these slabs?

For dimensions 75 mm and above, the tolerance is ± 4 percent. For dimensions below 75 mm, it is ± 3 mm.

What are the typical standard dimensions for a postmortem slab?

The standard specifies an overall length of 2000 mm and a width of 700 mm.

IS 771

: 2000

Glazed Fire-Clay Sanitary Appliances, Part 4: Specific Requirements of Postmortem Slabs

CurrentSpecializedSpecificationBIMMEP · Sanitary Appliances and Water Fittings

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This standard covers the specific material, dimensional, and manufacturing requirements for glazed fire-clay postmortem slabs used in mortuaries, hospitals, and forensic laboratories. MEP engineers and healthcare architects use this code to correctly specify heavy-duty, hygienic sanitary fixtures that meet strict autopsy facility standards.

Glazed Fire-Clay Sanitary Appliances, Part 4: Specific Requirements of Postmortem Slabs

Quick Reference Values

Standard length of postmortem slab2000 mm

Standard width of postmortem slab700 mm

Tolerance on dimensions 75 mm and over± 4 percent

Tolerance on dimensions less than 75 mm± 3 mm

Practical Notes

This is a 'Part 4' code; it must be read in conjunction with IS 771 (Part 1) which covers the general requirements, glazing quality, and testing methods (e.g., crazing, chemical resistance).

Ensure plumbing layouts coordinate with the specific drain outlet position and structural supports required for heavy fire-clay slabs.

Glazed fire-clay is chosen for these applications due to its high resistance to biological fluids and aggressive cleaning chemicals.