Europe and the United States have established corresponding safety standards for hot water bottles. ASTM D4316-95(2023) is a standard issued by the American Society for Testing and Materials (ASTM), which specifies requirements for molded, non-fabric-reinforced elastomeric water bottles with closures and screw stoppers. It mainly covers the product’s physical properties (such as material thickness), strength, leak resistance, and labelling requirements.

BS 1970:2006 is an internationally recognized British safety standard for rubber and PVC hot water bottles, which has been revised to BS 1970:2012. For hot water bottles sold on US marketplaces such as Amazon and TEMU, compliance with ASTM D4316-95(2023), Standard Specification for Elastomeric Water Bottles issued by ASTM, is required.

This standard applies to hot or cold water bottles used for personal hygiene and healthcare purposes. It addresses the safe and proper use of elastomeric water bottles.

⚠️ Fabric-reinforced hot water bottles are NOT covered by this standard.

Key Controlled Items

1. Material Safety: The bottle body and stopper shall not be toxic, sensitizing or skin-irritating, and shall pose no hazard under normal use. Stoppers may be made of corrosion-resistant metal or polymer materials.

2. Physical Properties: Tensile strength, ultimate elongation, heat resistance, water resistance, wall thickness, capacity and leak test.

3. Construction: Integrally molded bottle body with sealing screw stopper.

4. Marking and Packaging: Permanent product marking, warning statements on packaging and user instructions.

5. This standard does not cover operational safety during actual use; it only specifies manufacturing requirements for the product itself.

Product Filling Requirements

1. The inner surfaces of the hot water bottle shall not adhere to each other or become blocked during filling.

2. The hot water bottle shall be filled to the recommended capacity within 30 seconds.

3. Reduce the minimum ultimate elongation of PVC material from 200% to 150%.

Product Safety Instructions

1. Do not overfill, as this may cause the bottle to burst.

2. Ensure the funnel is empty. Where prolonged skin contact may occur, use a suitable cover to prevent burns. Under no circumstances shall the hot water bottle be used as a cushion or sat upon.

3. Do not place any objects on top of the bottle during storage.

4. Inspect the bottle and stopper for wear and damage before use.

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