glass fibre reinforced polyester resins (GRP) squatting pans

IS 11246: Scope - Key Specifications & Dimensions for Squatting Pan

Clause 6.1 - Dimensions (Table 1 & Fig. 1)

• Tolerance: ±4% for dimensions ≥ 50 mm.
• Dimensions C, G, and H are for general guidance.

Additional Notes

• The squatting pan must comply with these dimensions for proper functionality and fit.
• The pan's rear wall inclination ensures proper connection to the trap.
• The slope and depth ensure effective flushing and waste removal.

Summary Diagram (Fig. 1 Reference)

graph LR
A[Front Profile Width = 125 mm]
R[Rear Profile Width = 200 mm]
C[Vertical Drop = 70 mm]
D[Inclination = 6°-8°]
E[Top Opening Length = 425 mm]
Slope[Slope of Bottom = 25°-28°]
Depth[Overall Depth = 320 mm]
H[Entry Length to P-trap ≥ 40 mm]
J[Entry Diameter to P-trap = 77 mm]
K[Rim Bend = 20-25 mm]

A --> Pan
R --> Pan
C --> Pan
D --> Pan
E --> Pan
Slope --> Pan
Depth --> Pan
H --> Pan
J --> Pan
K --> Pan

For detailed testing, marking, and certification, refer to Clauses 7.6 and related

IS 11246: Referenced Indian Standards & Key Specifications

Referenced IS Codes (Clause 2.1):

Key Points on Standard Mark & Quality Control (Clause 7.6)

• Standard Mark indicates compliance with BIS quality, inspection, and testing.
• License for use governed by BIS Act, 1986.
• Continuous surveillance by BIS ensures conformity.
• Users must keep updated with latest amendments.

Sample Size & Acceptance Number (Clause 7.6)

• Sampling plans and acceptance numbers ensure quality control.
• Use IS 2500 or relevant sampling standards for acceptance criteria.
• Results rounded off per IS 2:1960 rules.

Summary Table: BIS Regional Offices for Reference

Diagram: BIS Quality Assurance Flow

flowchart TD
    A[Manufacturer Produces Product] --> B[Inspection & Testing]
    B --> C{Complies with IS?}
    C -- Yes --> D[Standard Mark License Granted]
    C -- No --> E[Reject/Rectify Product]
    D --> F[BIS Surveillance & Sampling]
    F --> C

Note: For detailed sampling tables and acceptance numbers, refer to IS 2500 (Sampling Procedures) and IS 11246 clauses on testing and inspection.

IS 11246: Terminology & Key Specifications for Squatting Pans

Key Definitions (Clause 3.0)

• Terms related to squatting pans and their components are standardized for clarity.
• Acceptance criteria and sampling are defined in Clauses 6.3 and 7.6.

Dimensions & Mass (Clause 6.1, Table 1)

Notes: Dimensions C, G, H are for guidance; tolerance ±4% for dimensions ≥50 mm.

Additional Info:

• Sampling & Acceptance: Refer Clause 7.6 for sample size and acceptance numbers.
• Standard Mark: Products conforming to IS 11246 bear BIS Standard Mark, ensuring quality control under BIS supervision.

flowchart TD
    A[Squatting Pan] --> B[Front Profile (A=125 mm)]
    A --> C[Rear Profile (R=200 mm)]
    A --> D[Top Opening (E=425 mm)]
    A --> E[Bottom slope (25-28°)]
    A --> F[P-trap Entry (H≥40 mm, J=77 mm ID)]
    D --> G[Vertical Drop (C=70 mm)]
    C --> H[Back Wall Inclination (6-8°)]

This concise summary covers the key terminology, dimensions, and quality control aspects per IS 11246 for squatting pans.

IS 11246: Key Specifications & Tables for Materials

1. Material Characteristics & Testing Frequency (Clause 11.1.1)

2. Relevant Indian Standards (Clause 2.1)

• IS 1221:1971 — Dye based fountain pen inks
• IS 3015:1985 — Specification for brush scrubbing
• IS 4955:1982 — Household laundry detergent powders
• IS 11320:1985 — Glass fibre rovings for polyester/epoxide resins
• IS 11551:1986 — Glass fibre chopped strand mat for polyester resin systems

3. Sample Size & Acceptance Number (Clause 7.6)

• Sample sizes and acceptance numbers for characteristics are defined to ensure quality control.
• The Standard Mark indicates compliance with BIS inspection and testing protocols.

Summary:

• Use the testing frequencies table to plan quality checks.
• Refer to related IS codes for material specifics.
• Follow sample size and acceptance criteria per Clause 7.6 for conformity.
• The Standard Mark certifies adherence to BIS quality and inspection systems.

flowchart LR
    A[Material] --> B[Test for Crazing]
    A --> C[Test for Water Absorption]
    A --> D[Test for Glass Content]
    B --> E[5 pieces/month]
    C --> F[5 pieces/6 months]
    D --> G[1 piece/month]

This ensures materials meet IS 11246 quality and performance standards.

IS 11246: Construction and Workmanship - Key Specifications

1. Dimensions & Mass (Clause 6.1, Table 1)

• Width of front profile (A): 125 mm
• Width at rear profile (R): 200 mm
• Vertical drop in front wall (C): 70 mm (guidance)
• Inclination of rear back wall (D): 6°–8°
• Length of top opening (E): 425 mm
• Slope of bottom: 25°–28°
• Overall depth: 320 mm
• Entry length into P-trap (H): Minimum 40 mm
• Diameter at P-trap entry (J): 77 mm (ID)
• Projected rim bend (K): 20–25 mm

Tolerances: ±4% for dimensions ≥50 mm.

2. Sampling & Acceptance (Clause 11.2.3, Table 2)

3. Workmanship

• Products must conform to the specified dimensions and tolerances.
• Surface finish and assembly must be free from defects affecting function.
• Standard Mark usage ensures compliance under BIS supervision.

flowchart LR
    A[Raw Material] --> B[Manufacturing Process]
    B --> C[Dimensional Checks (Clause 6.1)]
    C --> D[Sampling & Inspection (Clause 11.2.3)]
    D --> E{Acceptance Criteria}
    E -->|Within Limits| F[Standard Marking]
    E -->|Defective| G[Rejection/Rework

IS 11246: Dimensions and Mass of Squatting Pan

Key Dimensions (Table 1, Clause 6.1):

• Tolerance: ±4% for dimensions ≥ 50 mm.
• Dimensions C, G, and H are for general guidance.

Mass Requirements (Clause 6.3):

Summary

• Squatting pan dimensions ensure ergonomic and functional design for proper waste flow.
• Mass minimums ensure structural integrity and durability.
• Slope and inclination angles aid in effective drainage and trap sealing.

flowchart LR
    A[Front Profile Width (125 mm)]
    B[Rear Profile Width (200 mm)]
    C[Vertical Drop (70 mm)]
    D[Back Wall Inclination (6°-8°)]
    E[Top Opening Length (425 mm)]
    F[Slope of Bottom (25°-28°)]
    G[Overall Depth (320 mm)]
    H[Entry Length to P-trap (≥40 mm)]
    I[Entry Diameter to P-trap (77 mm)]
    J[Rim Bend (20-25 mm)]

    A --> Pan[Squatting Pan Dimensions]
    B --> Pan
   

IS 11246: Performance Requirements for Squatting Pans

Key Specifications (Clause 6 & 7)

• Minimum Mass:

  • Hand laid pans: ≥ 750 gm
  • Sheet Moulding Compound (SMC) pans: ≥ 900 gm

• Dimensions (Table 1 & Fig. 1):

• Tolerances: ±4% for dimensions ≥ 50 mm.

Performance Criteria (Clause 11.2.4)

• Number of tests and conformity criteria ensure durability, dimensional accuracy, and mass compliance.
• Tests include dimensional verification, mass measurement, and functional performance.

Summary Diagram of Pan Dimensions (Simplified)

graph LR
    A[Front Width (A=125mm)] --> Pan
    R[Rear Width (R=200mm)] --> Pan
    C[Vertical Drop (C=70mm)] --> Pan
    D[Back Wall Inclination (6-8°)] --> Pan
    E[Top Opening Length (E=425mm)] --> Pan
    H[Entry Length to P-trap (≥40mm)] --> Pan
    J[Trap Diameter (77mm ID)] --> Pan
    K[Rim Bend (

IS 11246: Inspection and Test Methods - Key Points

1. Characteristics Requiring Non-Destructive Testing (Clause 11.2.4.1)

• Certain critical characteristics must be verified by non-destructive testing (NDT) to ensure product integrity without damage.
• Typical NDT methods include ultrasonic, radiographic, magnetic particle, and dye penetrant tests.

2. Sampling and Acceptance Criteria (Clause 11.2.3 & 7.6)

• Acceptance number: Maximum allowable defective items in the sample for lot acceptance.

3. Number of Tests and Conformity Criteria (Clause 11.2.4)

• Tests must be performed as per specified sample sizes.
• Lot acceptance depends on whether the number of defects is within the acceptance number.

Summary Diagram: Sampling & Acceptance Process

flowchart TD
    A[Start: Lot of Pans] --> B{Determine Lot Size}
    B -->|<=50| C[Sample 2 pans]
    B -->|51-100| D[Sample 3 pans]
    B -->|101-300| E[Sample 5 pans]
    B -->|301-500| F[Sample 8 pans]
    B -->|>500| G[Sample 13 pans]

    C --> H{Check Defects}
    D --> H
    E --> H
    F --> H
    G --> H

    H -->|Defects ≤ Acceptance Number| I[Lot Accepted]
    H -->|Defects > Acceptance

IS 11246: Packing & Sampling Key Points

Packing (Clause 9.1)

• Squatting pans must be:
  • Wrapped with polythene sheets.
  • Packed securely in cardboard or other cartons.
  • Packed in suitable lot sizes to prevent damage during transit.

Sampling & Acceptance (Clause 11.2.3)

• Sampling size depends on lot size.
• Acceptance number indicates max allowed defective pans in sample.

Summary:

• Use polythene wrapping + carton packing for protection.
• Follow Table 2 for sampling and acceptance criteria based on lot size.
• Applies to characteristics in clauses 5.3, 6.1, 6.2, 6.3, 7.1, 7.3, 7.6, 7.9.

This ensures safe transit and quality control per IS 11246.

IS 11246 - Manufacturer’s Instructions (Clause 10 & related clauses)

• Packing & Handling (Clause 9.1):
  Squatting pans must be wrapped in polythene sheets and securely packed in suitable cartons to prevent damage during transit.

• Marking & Quality Control (Clause 7.6):
  Use of the BIS Standard Mark ensures compliance with inspection, testing, and quality control as per BIS guidelines. License details and conditions are governed by the BIS Act, 1986.

• Dimensions of Squatting Pans (Clause 6.1 & Table 1):

• Tolerances: +4% for dimensions ≥ 50 mm.

Summary Diagram of Squatting Pan Dimensions

graph TD
    A[Width Front Profile (125 mm)]
    R[Width Rear Profile (200 mm)]
    C[Vertical Drop (70 mm)]
    D[Inclination 6°-8°]
    E[Top Opening Length (425 mm)]
    H[Entry Length ≥ 40 mm]
    J[Entry Diameter (77 mm ID)]
    K[Projected Rim Bend (20-25 mm)]
    S[Slope 25°-28°]
    O[Overall Depth (320 mm)]

    A --> E
    R --> E
    C --> A
    D --> R
    H --> J
    K --> O
   

IS 11246: Type Tests and Sampling

1. Type Tests (Clause 11.1)

Type tests validate new pan compositions, techniques, or sizes.

• Pass Criteria: All samples must meet requirements for type approval (Clause 11.1.2.1).
• Failure: Manufacturer must improve design and resubmit.

2. Sampling & Permissible Defectives (Clause 11.2.3)

Summary:

• Conduct type tests as per frequency.
• Use sampling sizes per lot size.
• Zero acceptance for defects mostly, except for large lots (1 allowed).
• Ensure all tests pass for type approval.

flowchart TD
    A[Start: New Pan Design] --> B[Conduct Type Tests]
    B --> C{All Samples Pass?}
    C -- Yes --> D[Type Approval Granted]
    C -- No --> E[Improve Design & Resubmit]
    D --> F[Sampling as per Lot Size]
    F --> G[Check Defectives ≤ Acceptance Number]
    G -- Yes --> H[Batch Accepted]
    G -- No --> I[Batch Rejected]

IS 11246 - Marking: Key Specifications & Tables

Clause 12.1: Marking Requirements
Each pan must be clearly marked on the rear top outside surface with:

• Manufacturer's name or trade-mark
• Date of manufacture
• Batch number
• Mass of the pan

Clause 7.6 & 11.2.3: Sampling & Acceptance Criteria for Marking

• Acceptance Number: Maximum allowable defective samples in the lot before rejection.

Summary Diagram of Marking Location

graph TD
A[Rear Top Outside Surface] --> B[Manufacturer Name/Trade-mark]
A --> C[Date of Manufacture]
A --> D[Batch Number]
A --> E[Mass of Pan]

Note: Use the Standard Mark as per BIS rules under the Bureau of Indian Standards Act, 1986, ensuring continuous quality control and inspection.