The standard details the essential criteria for vases used in 15 m × 6 m store tents, emphasizing the appropriate materials, precise dimensions, craftsmanship, and finishing techniques. It serves manufacturers, suppliers, and engineers by defining suitable timber types, treatment procedures, and marking requirements to guarantee durability and quality.
Overview
The standard details the essential criteria for vases used in 15 m × 6 m store tents, emphasizing the appropriate materials, precise dimensions, craftsmanship, and finishing techniques. It serves manufacturers, suppliers, and engineers by defining suitable timber types, treatment procedures, and marking requirements to guarantee durability and quality.
Audience
Contents
Structure
This section outlines the criteria for vases intended for 15 m × 6 m store tents, covering material specifications including coir ropes, manufacturing dimensions in millimeters, splicing details for guy ropes, and testing requirements such as moisture content and workmanship. Definitions refer to IS 707:1976, with additional standards listed in Annex A.
Lists key Indian Standards incorporated by reference, including varnish, lacquer, timber terminology, copper naphthenate, coir ropes, and petroleum solvents. These provide essential material specifications and quality benchmarks required for compliance.
Defines timber-related terms as per IS 707:1976. Specifies sampling sizes and allowable defect counts relative to lot sizes for quality control. Details standard packing of fifteen vases per jute bag and references related standards.
Describes approved timber species with botanical and trade names. Specifies tests for moisture content, dimensions, and workmanship. Details packing instructions and relevant standards for varnishes, lacquers, preservatives, ropes, and solvents.
Covers permissible manufacturing dimensional tolerances, packaging requirements, and sampling plans. Lists common timber species used and references standards to ensure quality in production.
Specifies that vases must comply with exact dimensions (referenced in Fig. 1), with normal manufacturing deviations allowed. Includes guidelines for surface finish and guy rope attachment. Sampling criteria based on lot size are reiterated.
Details the copper naphthenate dipping process for specific timber species, including concentration and duration, conforming to IS 1078:1973. Specifies timber quality requirements such as moisture content and absence of defects.
Emphasizes the requirement for reasonably good workmanship free from major flaws. Describes inspection procedures and acceptance criteria for finish quality, treatment, and dimensional tolerances.
Outlines the sampling plans based on lot sizes, permissible defects, and testing requirements including moisture, dimensions, and finish. Establishes acceptance and rejection criteria to maintain quality.
Specifies marking requirements for each vase including manufacturer identity and production year. Optionally, the BIS Standard Mark may be applied to indicate conformity and quality assurance.
Defines packaging methods mandating fifteen vases per suitable jute cloth bag to ensure safe handling and transportation. Reiterates sampling sizes and defect allowances.
Provides a comprehensive list of the Indian Standards cited within this document that relate to varnishes, lacquers, timber terminology, preservatives, ropes, and solvents, integral for material compliance.
Enumerates timber species permitted for vase production, specifying criteria such as straight grain, seasoning level, moisture content limits, and defect restrictions. Highlights species where sapwood is acceptable.
Frequently Asked
The standard's Annex B specifies the approved timber species for vase fabrication. Notably, species such as Haldu, Kaim, Kanju, and Jhingan require treatment by immersion for 15 seconds in a 10% copper naphthenate solution dissolved in petroleum hydrocarbon solvent to enhance durability. The timber used must be straight-grained, well-seasoned, and free from defects to ensure quality.
According to the standard, the vase must adhere strictly to the dimensions illustrated in Fig. 1 of the document. This includes the precise shape, size, and central hole placement. Surfaces should be smoothly sanded and coated with varnish or lacquer. The neck area must facilitate the secure attachment of guy ropes by proper splicing. Minor manufacturing tolerances are permitted, but any significant deviations or defects found during inspection result in rejection.
To ensure timber longevity, selected species such as Haldu, Kaim, Kanju, and Jhingan should be dipped for 15 seconds in a 10% copper naphthenate solution prepared in petroleum hydrocarbon solvent, conforming to IS 1078:1973. Additionally, timber must be well-seasoned with moisture content not exceeding 15%, straight-grained, and free from defects like pith or decay. This treatment safeguards against fungal decay and insect attacks.
Each vase must be clearly and permanently marked with the manufacturer's name, initials, or registered trademark, along with the year of manufacture. Optionally, the vase may carry the BIS Standard Mark to indicate compliance with the Indian Standards and quality assurance under BIS supervision.
Sampling is conducted based on lot size, with sample sizes ranging from 6 to 10 units and allowable defective vases between zero and one, depending on the batch size. Samples undergo tests for moisture content, dimensional accuracy, and workmanship. Visual inspections are mandatory to identify defects or finish issues. Vases failing these inspections are rejected, ensuring that only conforming products are accepted.
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