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Significance and Use
The storage of corrosive or abrasive solutions or suspensions requires that the metal surface of storage tanks, large pipes, or holding vessels be lined with a material that resists such action. Vulcanized rubber that is securely adhered to the tank or other metal surface imparts such resistance. An integral part of the installation of such linings is the vulcanization operation that produces proper mechanical strength, chemical resistance, and sufficient rubber-to-metal adhesion.
Service conditions will dictate what type of rubber is used. Also, the service conditions will determine the proper thickness of the rubber and the particular compound or compounds used in a lining. For example: temperatures over 140°F (60°C) typically require a thickness of ¼ in. (6.35 mm). Some service conditions that have a solution composed of several chemicals may require different layers of rubber compounds. Within these layers, the hardness or durometer of the rubber may be changed as well to provide the longest service life of the rubber lining. Consult with the rubber lining manufacturer when selecting the rubber lining system and preparing application specifications and procedures.
1.1 This practice covers the techniques used to install rubber lining sheet stock in metal tanks, pipes, and other components. Installation requirements, procedures, inspection instructions, and storage conditions for the lined tanks or equipment are outlined.
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. This standard may involve hazardous materials, operations, and equipment.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D429 Test Methods for Rubber Property--Adhesion to Rigid Substrates
D2240 Test Method for Rubber Property--Durometer Hardness
D4285 Test Method for Indicating Oil or Water in Compressed Air
D4417 Test Methods for Field Measurement of Surface Profile of Blast Cleaned Steel
D4538 Terminology Relating to Protective Coating and Lining Work for Power Generation Facilities
D5162 Practice for Discontinuity (Holiday) Testing of Nonconductive Protective Coating on Metallic Substrates
E1216 Practice for Sampling for Particulate Contamination by Tape Lift
International Organization for StandardizationISO8502-3 Preparation of Steel Substrates Before Application of Paints and Related Products--Tests for the Assessment of Surface Cleanliness--Part 3: Assessment of Dust on Steel Surfaces Prepared for Painting (Pressure-Sensitive Tape Method)
NACE StandardsSP0188 Discontinuity (Holiday) Testing of New Protective Coatings
ICS Number Code 25.220.99 (Other treatments and coatings); 83.060 (Rubber)
UNSPSC Code 13100000(Rubber and elastomers)