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IS 14401:1996 is the Indian Standard (BIS) for guidelines for handling and storage of building limes. This standard provides guidelines for the proper handling and storage of various types of building limes, such as quicklime and hydrated lime. It outlines necessary precautions to prevent deterioration from exposure to air and moisture and details safe practices for on-site storage, stacking, and slaking.
Guidelines for handling and storage of building limes
Overview
Status
Current
Usage level
Specialized
Domain
Materials Science — Building Limes and Gypsum Products
! Lime is caustic; always use appropriate Personal Protective Equipment (PPE) like gloves, goggles, and respiratory masks during handling and slaking.
! Ensure storage areas are completely weatherproof as moisture absorption significantly degrades the quality and reactivity of both quicklime and hydrated lime.
! Quicklime generates significant heat when slaked (mixed with water); add lime to water slowly and in a well-ventilated area to control the reaction.
EN 459-1:2015CEN (European Committee for Standardization), Europe
MediumCurrent
Building lime - Part 1: Definitions, specifications and conformity criteria
Specifies product characteristics but includes mandatory marking and information requirements related to safe handling, storage, and use.
AS 1672.1-2018Standards Australia, Australia
MediumCurrent
Limes and limestones - Part 1: Limes for building
A product specification standard that contains a specific clause on packing, marking, and storage requirements.
ASTM C977-18ASTM International, USA
LowCurrent
Standard Specification for Quicklime and Hydrated Lime for Soil Stabilization
A product specification for a specific application (soil stabilization) that includes sections on delivery, packaging, and storage.
Key Differences
≠IS 14401 is a dedicated 'guideline' standard focusing exclusively on handling and storage, whereas international equivalents like EN 459-1 are 'product specification' standards that include handling and storage as a smaller, required component.
≠The Indian standard is highly prescriptive, providing specific dimensional guidance (e.g., 'storage shed floor shall be raised at least 300 mm', 'stack height not more than 10 bags'). International standards are performance-based, requiring protection from moisture without specifying construction details.
≠IS 14401 integrates detailed safety precautions directly into the text. European standards (EN 459-1) mandate that this detailed information be provided via a separate, legally required Safety Data Sheet (SDS).
≠IS 14401 provides explicit, detailed instructions for the on-site slaking of quicklime, including the construction of slaking pits. International product standards only require the manufacturer to provide recommendations for use, but do not standardize the process itself.
Key Similarities
≈All standards recognize the critical need to store both quicklime and hydrated lime in dry, weatherproof conditions to prevent degradation from moisture (air-slaking) or atmospheric carbon dioxide (carbonation).
≈There is a universal emphasis on personnel safety. All standards, either directly or by reference to Safety Data Sheets, call for the use of Personal Protective Equipment (PPE) such as eye protection, respiratory masks, and gloves due to the caustic nature of lime.
≈The principle of using older stock first (First-In, First-Out) is a common theme, promoted by IS 14401 and encouraged by international standards through mandatory date marking on packaging.
≈All related standards require clear marking on packaging or delivery documents, including the type of lime, manufacturer identification, and safety warnings to ensure proper handling and use.
Parameter Comparison
Parameter
IS Value
International
Source
Storage Shed Floor Height
Floor to be raised at least 300 mm above surrounding ground level.
Not specified prescriptively; requires storage that protects from moisture and deterioration.
EN 459-1:2015
Bag Stack Height
Not more than 10 bags high.
No specific limit given in the standard; governed by general site safety rules for stable stacking.
EN 459-1:2015
Storage Time Limit (Hydrated Lime)
Should be used within one month, but no later than 3 months.
Manufacturer must declare shelf life if less than 6 months; otherwise, it is specific to the product.
EN 459-1:2015
Hook Handling Prohibition
Bags should be marked with 'Use No Hooks'.
Not explicitly mentioned, but considered part of general good practice to avoid bag damage and spills.
General Practice (absent in EN 459-1)
Safety Information Provision
Provided within the standard's text (e.g., wear goggles, use hand cream).
Must be provided via a separate, comprehensive Safety Data Sheet (SDS) as per REACH regulations.
EN 459-1:2015
Traceability Information
Recommends marking with 'Name of manufacturer' and 'Type of lime'.
Requires CE marking, standard number, lime designation, manufacturer, and production plant identification.
EN 459-1:2015
⚠ Verify details from original standards before use
Key Values3
Quick Reference Values
Maximum stack height for bagged hydrated lime10 bags
Recommended usage period for hydrated lime in bags1 month
Recommended usage period for quicklime (good storage)2-3 months
Tables & Referenced Sections
Key Tables
No tables data
Key Clauses
Clause 4 - General Precautions for Storage
Clause 5 - Handling and Storage of Quicklime
Clause 6 - Handling and Storage of Hydrated Lime
Clause 7 - Precautions During Slaking of Quicklime
How should I store bags of hydrated lime on site?+
Store them in a weatherproof shed on a raised, dry platform. The stack height should not exceed 10 bags (Clause 6.1.1).
What is the shelf life of quicklime?+
Even under good storage conditions, it is recommended to use quicklime within 2-3 months as it readily absorbs moisture and carbon dioxide from the atmosphere, reducing its quality (Clause 5.2.1).
What are the general precautions for storing any type of lime?+
The storage place should be dry, weatherproof, and located away from damp areas. The storage floor should be impermeable (Clause 4).