BS 1970:2012 pdf free download
BS 1970:2012 pdf free download.Hot water bottles manufactured from rubber and PVC – Specification.
BS 1970 specifies requirements for the physical properties and performance of both rubber and PVC hot water bottles, designed for complete or partial filling with hot water by the user.
Normative references
The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
BS 2071, Specifications for Soxhlet extractors
BS EN 71-1:2011, Safety of toys — Part 1: Mechanical and physical properties BS EN 71-3:1995, Safety of toys — Part 3: Specification for migration of certain elements
85 EN ISO 527-1, Plastics — Determination of tensile properties — Part 1: General principles
85 EN ISO 527-3, Plastics — Determination of tensile properties — Part 3: Test conditions for films and sheets
BS ISO 34-1, Rubber, vulcanized or thermoplastic – Determination of tear strength — Part 1: Trouser, angle and crescent test pieces
85 ISO 37. Rubber, vulcanized or thermoplastic – Determination of tensile stress-strain properties
85 ISO 48, Rubber, vulcanized or thermoplastic – Determination of hardness (hardness between 10 IRHD and 100 IRHD)
85 ISO 188, Rubber, vulcanized or thermoplastic — Accelerated ageing and heat resistance tests
BS ISO 815-1. Rubber, vulcanized or thermoplastic — Determination of compression set — Part 1: At ambient or elevated temperatures
BS ISO 2285. Rubber, vulcanized or thermoplastic — Determination of tension set under constant elongation, and of tension set, elongation and creep under constant tensile load
85 ISO 23529, Rubber — General procedures for preparing and conditioning test pieces for physical test methods
4 Physical properties
4.1 Visual examination
See Figure 1 for hot water bottle components.
When inspected with the naked eye, the hot water bottle shall not exhibit:
a) inclusions of foreign matter;
b) tears, blisters, cuts; or
C) any other defects that could adversely affect the safe performance of the hot water bottle.
NOTE Attention should be paid to the neck-body intersection where trimming can result in a nick which acts as a stress raiser that weakens the product in this area.
The visual examination shall continue during the preparation of test pieces as the discovery of any of these detrimental defects will constitute failure to conform to this standard.
4.2 Thickness
The hot water bottle shall, at no point on its surface, have a thickness less than that shown in Table 1, according to its capacity and the material of construction.
Thickness shall be determined in accordance with the method in Annex A, and the capacity determined in accordance with the appropriate method in Annex B.BS 1970 pdf free download.
