Standards

JC/T 2862-2024 Active

JC/T 2862-2024 Bulk cement transfer station complete set equipment technical requirements

This document specifies the composition and basic parameters, technical requirements, safety and environmental protection, installation and acceptance, commissioning, performance testing, and delivery documents of the complete set of equipment for bulk cement transfer stations (hereinafter referred to as "complete set of equipment"). This document is applicable to the complete set of equipment for bulk cement unloading, storage, loading, and other operations.

Publish Date: 2024-10-24

JC/T 2861-2024 Active

JC/T 2861-2024 Asbestos Mine Rehabilitation Technical Specification

This document stipulates the general principles, overall objectives, working procedures, basic investigation and problem identification, preparation of restoration plans, implementation of plans, monitoring and management, and effectiveness evaluation for the restoration of asbestos mines. This document is applicable to the restoration of abandoned asbestos mines after the completion of mining and mineral processing activities. The restoration work of asbestos mines during the mining and mineral processing process can be carried out with reference to this document.

Publish Date: 2024-10-24

JC/T 2860-2024 Active

JC/T 2860-2024 Diluted manganese slag for desulfurization used in cement and concrete

This document specifies the technical requirements, test samples, test methods, inspection rules, and packaging, marking, transportation, and storage of desulfurized manganese slag. This document is applicable to desulfurized manganese slag and desulfurized manganese slag powder used in cement and concrete.

Publish Date: 2024-10-24

JC/T 2859-2024 Active

JC/T 2859-2024 High-temperature cement for cementing wells

This document specifies the composition and materials of silicate cement for high-temperature cementing, technical requirements, test methods, inspection rules, as well as packaging, marking, transportation, and storage. This document is applicable to silicate cement for high-temperature cementing.

Publish Date: 2024-10-24

JC/T 2858-2024 Active

JC/T 2858-2024 Offshore engineering low-temperature silica cement

This document specifies the materials, strength grades, technical requirements, test methods, inspection rules, and packaging, marking, transportation, and storage of marine low-heat silicate cement. This document is applicable to marine low-heat silicate cement.

Publish Date: 2024-10-24

JC/T 2857-2024 Active

JC/T 2857-2024 Magnesium Phosphate Cementing Material

This document specifies the strength grade, technical requirements, test methods, inspection rules, and packaging, marking, transportation, and storage of magnesium phosphate cement materials. This document is applicable to magnesium phosphate cement materials.

Publish Date: 2024-10-24

JC/T 2856-2024 Active

JC/T 2856-2024 Gypsum and Gypsum Products Terminology

This document defines the definitions and meanings of terms related to gypsum and gypsum products, including basic terms, gypsum phases, gypsum ores, industrial by-product gypsum, recycled gypsum, gypsum setting materials, gypsum mortar, gypsum products, the main production processes of gypsum, and others. This document is applicable to gypsum and gypsum products.

Publish Date: 2024-10-24

JC/T 2855-2024 Active

JC/T 2855-2024 The method of testing the compressive strength of concrete - Direct pull method (JC/T 2855-2024)

This document specifies the test device, test method, calculation of direct pull strength, calculation of concrete strength, and inspection report for determining the compressive strength of concrete using the direct pull method. This document is applicable to the inspection of ordinary concrete with a compressive strength of 20.0MPa to 80.0MPa.

Publish Date: 2024-10-24

JC/T 2854-2024 Active

JC/T 2854-2024 The determination of residual flocculant and surfactant in graphite fine ore according to JC/T 2854-2024

This document specifies the method for determining the residual amounts of collectors and foaming agents in graphite concentrate. This document is applicable to the determination of the residual amounts of collectors and foaming agents in graphite concentrate, with a measurement range of 0.20% to 25.00%.

Publish Date: 2024-10-24

JC/T 2853-2024 Active

JC/T 2853-2024 Method for determination of Bentonite suspended properties (JC/T 2853-2024)

This document specifies the principles of determining the suspension property of bentonite, the reagents and materials, the instruments and equipment, the preparation of slurry, the determination steps, the presentation of results, and the test report. This document is applicable to the determination of the suspension property of bentonite.

Publish Date: 2024-10-24

JC/T 2852-2024 Active

JC/T 2852-2024 Ultra-thin glass sag test method: Laser ranging method

This document specifies the test apparatus, environmental conditions, sample requirements, test procedures, and results for measuring the sag of ultra-thin glass using laser ranging methods. This document is applicable to the testing of the sag of flat ultra-thin glass. The sag testing of flat glass of other thicknesses can be used for reference.

Publish Date: 2024-10-24

JC/T 2851-2024 Active

JC/T 2851-2024 JC/T 2851-2024 Optical quartz glass stress birefringence test method: Point scanning method

This document specifies the principle, experimental setup, samples, test conditions, test procedures, data processing, and test reports for detecting the stress birefringence of optical quartz glass using the point scanning method. This document is applicable to the testing of stress birefringence in optical quartz glass, and other glass materials can be used for reference.

Publish Date: 2024-10-24