Nsfs 347 2021 __top__ -

Based on the identifier "nsfs 347 2021", this refers to NFS Standard (NSFS) No. 347, titled "Mechanical Couplings for Joining Thermoplastic Pressure Piping Systems."

The standard was developed by the NSF International Joint Committee on Plumbing Systems and published in 2021.

Below is a comprehensive report on the standard, its scope, and its significance. nsfs 347 2021

Report: NSF/ANSI 347 — Sustainability Assessment for Single-Ply Roofing Membranes (2021)

Strengths (What the standard does well)

1. Comprehensive Scope: Covers all CSDs (colas, lemon-lime, fruit-flavored carbonated beverages, tonic water, soda water). It clearly defines what constitutes a carbonated soft drink versus other beverages.
2. Rigorous Microbiological Limits: Sets clear zero-tolerance for pathogens like Salmonella, E. coli, and Staphylococcus aureus in 25ml samples. This is a major public health win, targeting contamination from poor water quality or unhygienic bottling.
3. Chemical & Contaminant Controls: Establishes maximum limits for heavy metals (lead, arsenic, cadmium, mercury) and preservatives (benzoates, sorbates). Particularly notable: stricter lead limits compared to older standards, reflecting updated toxicological data.
4. Sweetener & Additive Regulations: Provides clear guidance on permitted sweeteners (including high-intensity sweeteners like aspartame, acesulfame-K, saccharin) and their maximum use levels. This is vital given the rise of "low-sugar" and "zero-sugar" drinks.
5. Labeling Requirements: Mandates full ingredient declaration, nutritional information (energy, sugar content, artificial sweetener presence), net quantity, manufacturer details, and batch/coding for traceability. The requirement to clearly declare "Contains Phenylalanine" for aspartame-containing drinks shows attention to medical safety.
6. Harmonization with Codex: Aligns many parameters with Codex Stan 227 (Codex Standard for Carbonated Beverages), which facilitates export and international acceptance of Nigerian-made products.

Certification process

• Manufacturer submits product documentation, LCI data, test reports, and supply‑chain information.
• Third‑party auditor (NSF or accredited body) reviews documentation and conducts factory audits as required.
• Verification includes laboratory test results, on‑site audits, and periodic surveillance.
• Certification renewal and periodic re‑assessment required to maintain mark.

Scope: Which Gaskets Are Covered?

NSFS 347 2021 applies to nonmetallic gaskets made from:

• EPDM (ethylene propylene diene monomer)
• NBR (nitrile butadiene rubber)
• Neoprene
• Silicone
• FKM (fluoroelastomers)
• PTFE with elastomeric fillers
• Compressed fiber gaskets (non-asbestos)
• Thermoplastic elastomers (TPEs)

The standard explicitly excludes metallic gaskets (e.g., spiral wound, ring joint) and gaskets used outside of water/wastewater infrastructure (e.g., chemical plants, oil & gas). Based on the identifier "nsfs 347 2021" ,

Key Requirements of NSFS 347 2021

To earn NSF certification under the 2021 edition, a gasket must pass four battery tests:

Blog Post: Understanding NSF/ANSI 347 (2021) – The Green Standard for Single-Use Foodware

Posted: April 11, 2026
Category: Sustainability, Food Service, Compliance Applies to single‑ply roofing membranes (e.g.

If you work in food service, manufacturing, or environmental compliance, you’ve likely heard the push for eco-friendly packaging. But what actually certifies a disposable cup or clamshell as “sustainable”? Enter NSF/ANSI 347 (2021) – the benchmark for single-use food service items.

Here’s everything you need to know about this quietly powerful standard.

Scope and purpose

• Applies to single‑ply roofing membranes (e.g., TPO, PVC, EPDM) and associated accessories where specified.
• Intended to provide an objective, third‑party verified method to assess and compare sustainability performance of roofing membrane products.
• Supports green building credits and procurement requirements by documenting sustainability attributes.

Review: NFS 347:2021 – Standard for Carbonated Soft Drinks

Issuing Body: Standards Organisation of Nigeria (SON) Year of Publication: 2021 Status: Current (Replaces earlier versions)