12 Instruments Available
76

Deck Paint Testing

2026-08-12

Deck paint testing explained by ASTM D3359 adhesion, D4060 abrasion, D4587 weathering and GB 18581-2020 VOC limits — from an ISO/IEC 17025 coating laboratory

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77

Color fastness testing

2026-08-04

Color fastness testing explained by ISO 105, AATCC and GB/T: rubbing, washing, light and perspiration grades, GB 18401 A/B/C class thresholds from an ISO/IEC 17025 lab

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78

Electronic switch testing

2026-07-24

What Is Electronic Switch Testing?Electronic switch testing is the safety, performance, and enduranc

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79

Diaper Testing

2026-07-23

Diaper testing verifies absorption, rewet, strike-through, pH, hygiene, and VOC safety per GB/T 28004.1, GB 15979, GB 43631, EDANA guidelines. Beijing ZKGX explains.

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80

Damp Heat Resistance Testing

2026-07-23

Damp heat resistance testing verifies survival under steady-state, cyclic, and 85/85 humidity stress per IEC 60068-2-78/-30, GB/T 2423.3/4, IEC 61215. Beijing ZKGX explains.

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81

Self-Priming Pump Testing

2026-07-22

Self-priming pump testing verifies hydraulic performance, NPSH, and priming time per ISO 9906:2012, GB/T 3216-2016, and HI 14.6. Beijing ZKGX outlines the full program.

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82

Electric Iron Testing

2026-07-21

Electric iron testing verifies leakage current, dielectric strength, temperature rise, and cord flexing per IEC 60335-2-3, EN 60335-2-3, IS 302-2-3, GB 4706.2. Beijing ZKGX outlines the full program.

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83

Tea bag testing

2026-07-17

Tea bag testing per GB/T 24690 (sensory, moisture, water extract) and GB 4806.8 (filter bag fluorescent substances, migration, heavy metals, wet tensile). Beijing ZKGX lab.

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84

Proximity switch testing

2026-07-16

Proximity switch testing per GB/T 14048.10-2016 (IEC 60947-5-2): Sn/Sr/Su/Sa sensing distance, repeat accuracy ≤3%, hysteresis, switching frequency. Beijing ZKGX.

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85

Luminaire safety testing

2026-07-16

Luminaire testing per GB 7000.1-2015 (safety, = IEC 60598-1), GB/T 31897 (LED performance, Ra≥80), GB 17743 (EMC), GB/T 20145 (blue light). Beijing ZKGX lab.

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86

Electric drill testing

2026-07-09

Electric drill testing per IEC 62841 / GB/T 3883.201 — torque and no-load speed, temperature rise under drilling duty, hand-arm vibration, noise, and EMC type test.

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87

Gypsum board testing

2026-07-08

Gypsum board testing per GB/T 9775-2025 / ASTM C473 — breaking load (longitudinal/transverse), tapered edge, facer bond, water absorption (≤10%), humid deflection, and fire.

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88

Submersible pump testing

2026-07-08

Submersible pump testing per ISO 9906 / GB/T 3216 — flow, head, wire-to-water efficiency, NPSH, and the motor-integrity tests (insulation, leakage, thermal) per ANSI/HI 11.6.

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89

Check valve testing

2026-07-08

Check valve testing per ISO 5208 / API 598 / API 6D — shell and reverse-seat tightness, cracking pressure, closing response and water-hammer, flow coefficient (Cv).

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90

Circuit breaker testing

2026-07-08

Circuit breaker type testing to IEC 60947-2 / GB/T 14048.2 — Icu, Ics, Icw, Icm, utilization category A/B, test sequences, and Annex F EMC for electronic releases.

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91

Fuse testing

2026-07-06

Fuse type testing to IEC 60269-1 / GB/T 13539.1 — breaking capacity (I₁/I₂/I₃), time-current gates, I²t, power dissipation, and HV fuses per IEC 60282-1

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92

Phenolic resin testing

2026-07-06

Phenolic resin testing per EN ISO 10082 — novolac vs resol, gel time (ISO 9396), free formaldehyde (ISO 9397), hexamine (ISO 8988), DSC cure (ISO 11409).

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93

Dishwasher testing

2026-07-06

Dishwasher testing verifies cleaning, drying, energy, water and noise to IEC 60436 (ed. 5.0), AHAM DW-2-2020 and EU Ecodesign 2019/2022 (EEI < 56). Tested by Beijing ZKGX Research.

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94

Vacuum cleaner testing

2026-07-06

Vacuum cleaner testing verifies dust pick-up, air performance, filtration, energy, noise and battery run-time to IEC 62885, ASTM F-series and EU Ecodesign 666/2013. Tested by Beijing ZKGX Research.

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95

Canned food testing

2026-07-04

Canned food testing to GB 7098-2025 (implementing 2026-03-16): commercial sterility (GB 4789.26-2023, not bacterial count), tin migration from the can, histamine in fish cans — Beijing ZKGX.

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96

Corduroy Testing

2026-07-03

Corduroy testing as a two-layer structure: product standards (GB/T 14311-2017 printed/dyed, FZ/T 13061-2024 grey, FZ/T 81019 garments) + GB 18401-2010 safety baseline, with wale-specific pile-retention and seam-slippage tests — Beijing ZKGX.

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97

Legionella testing

2026-07-03

Legionella testing: GB/T 18204.5 and GB/T 40392-2021 (BCYE/GVPC culture, L-cysteine differential confirmation) for cooling-tower and HVAC water against WS 10013-2023 action levels — Beijing ZKGX.

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98

Gibberellin testing

2026-07-03

Gibberellin (gibberellic acid GA₃) testing: GB 23200.21-2016 (LC-MS/MS method for fruits) against GB 2763-2026 crop-specific MRLs. The endogenous-plant-hormone background problem — not zero-tolerance — Beijing ZKGX.

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99

Lysine testing

2026-07-03

Lysine testing by matrix: food (GB 5009.124-2016 amino-acid analyzer after acid hydrolysis), feed (GB/T 18246-2019, total vs free lysine), and feed additive L-Lys HCl (GB 34466-2017, ≥98.5%) — Beijing ZKGX.

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100

Phthalate plasticizer testing

2026-07-03

Phthalate plasticizer testing by matrix: food-contact materials (GB 31604.30-2025, 19 PAEs, just replacing 2016), food (GB 5009.271-2016), GB 9685 SML limits, RoHS (GB 26572-2025) — GC-MS — Beijing ZKGX.

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