GB/T 7124-1986
Replaced
T/LFL 004-2023
Active
Group standards
T/LFL 004-2023 "Non-formaldehyde adhesive"
T/LFL 004-2023 "Non-formaldehyde adhesive"
Price:
$ 20.00
Basic Information
Standard Code:
T/LFL 004-2023
Standard Type:
Group standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Chemical industry
ICS Name:
Adhesives and adhesive products
Publish Date:
2023-12-01
Implement Date:
2023-12-10
Scope
Scope: This document specifies the terms and definitions, technical requirements, test methods, inspection rules, marking, packaging, transportation, and storage of formaldehyde-free adhesives. This document applies to adhesives synthesized by reaction using water, polyvinyl alcohol, kaolin, etc. as main raw materials without the addition of formaldehyde. Main technical content: Technical requirements for formaldehyde-free adhesives - Paste form - Solid appearance - Milky white with a slightly acidic odor, no impurities, uniform paste-like fluid - Milky white with a slightly acidic odor, powder-like solid - pH value - 3.5 - 4.0–5.0 - Non-volatile content (%) ≥35% - 100% - Solid content (%) ≥35% - 100% - Viscosity (cps) 3000±500 - 3000±500 - Shear impact strength (N/mm) ≥0.9 ≥0.9 - Low-temperature stability - Slow gelation at temperatures below 20°C - Content of aromatic amines (g/kg) ND - Limits of harmful substances - Free formaldehyde (g/kg) ND - Benzene (g/kg) ND - Toluene + xylene (g/kg) ND - Total volatile organic compounds (g/L) ND
Development Information
Related Standards
GB/T 7749-1987
Active
GB/T 7749-1987 Test method of cleavage strength of adhesive (metal to metal)
GB/T 7750-1987
Active
GB/T 7750-1987 Test method of creep properties of adhesive in shear by tension loading (metal to metal)
GB/T 11177-1989
Active
GB/T 11177-1989 Testing method for compressive shear strength of dowel joint by inorganic adhesives
GB/T 12216-1990
Abolished
GB/T 12216-1990 The residue from distillation of synthetic fatty acids as binder for foundry
GB/T 13353-1992
Active