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Plastics piping systems for drainage and sewerage without pressure. Non-circular pipes and joints made of glass-reinforced thermosetting plastics (GRP) based on unsaturated polyester resins (UP). Dimensions, requirements and tests. Original standard BS ISO 16611-2026 in PDF full version. Additional info + preview on request

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Wheelchair seating - Determination of changes in properties of seat cushions following simulated use. Original standard BS ISO 16840-6-2026 in PDF full version. Additional info + preview on request

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Water reuse in urban areas - Guidelines for decentralized water reuse system - Management of a decentralized water reuse system. Original standard BS ISO 18998-2026 in PDF full version. Additional info + preview on request

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Thermal insulation products for buildings - Reflective insulating products - Specification. Original standard BS ISO 21239-2026 in PDF full version. Additional info + preview on request

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Raw optical glass - Powder test method for the water resistance of optical glass - Test method and classification. Original standard BS ISO 21575-2026 in PDF full version. Additional info + preview on request

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Chain of custody. Requirements and guidelines for mass balance. Original standard BS ISO 22095-2-2026 in PDF full version. Additional info + preview on request

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